Masterbatch Carrier Resin Compatibility Guide:
PP, PE, PET, PA, TPU, ABS and More

Most of the masterbatch issues may seem initially to be related to "unstable color" but after careful consideration, in most cases, the real problem will not be the colorant per se but rather an improper selection of the carrier resin.

For instance, the red colorant that works well in PP might work poorly in PET due to migration.

And a black masterbatch which disperses nicely in PE film might cause black specks and change in mechanical properties in PA injection molding.

So, when buying a masterbatch, the question to ask is not:

"Do you have this color?"

but rather:

"Does your carrier resin match my base resin?"

In case of technical staff, it will have an impact on dispersion, color, process stability, and performance of the finished product.

In this article, we will consider PP, PE, PET, PA, ABS, and TPU systematically in terms of compatibility, process temperature, dispersion, addition rate, cost of purchase, process itself, and quality control.

The following is the methodology you can apply right away when choosing the carrier for your color masterbatch.

1. Why Is the Carrier Resin the Most Overlooked Factor in the Choice of Masterbatch?

Masterbatch is not a colorant "packed into plastic pellets."

A well-developed masterbatch usually consists of the following ingredients:

• Pigment / dye

• Carrier resin

• Dispersant

• Process additives

• Others

Of all of them, the carrier resin defines the possibility of masterbatch "melting into" the final plastic blend.

It is like a cup of coffee.

Pigment – coffee powder. And the carrier resin - is water. In case of incorrect interaction between water and coffee powder, even the best-quality coffee powder will not produce an even result.

And the plastic process is similar.

In case of incompatibility of the masterbatch carrier with the base resin, one may observe:

• Incomplete melting of masterbatch

• Inadequate pigment dispersion

• Migration (blooming)

• Higher number of black or color spots

• Higher number of gel particles

• Changes of gloss

• Deterioration of mechanical properties

• Incorrect melt flow

• Non-uniform color of the end product

That is why when choosing a color masterbatch, knowing the base resin and the process is more important than just comparing masterbatch prices.

2. What Is a Masterbatch Carrier Resin?

The carrier resin of the masterbatch is the base polymer that carries the pigment, dispersant, and other additives.

Its function is to assist in the penetration of the pigment into the target polymer matrix in an even manner.

In simple words, the carrier resin is the transportation medium for the masterbatch.

It should do the following three things:

1. Encapsulate the Pigment Evenly

When producing the masterbatch, the pigment should get into the carrier resin in a high shear condition.

A good carrier resin assists in getting the full wetting and dispersion of the pigment.

2. Be Melted Easily During the Process

When the masterbatch gets into the injection molding machine, extruder, blown film or spinning machines, it should melt easily with the base resin.

If the melting properties of the carrier are significantly different from those of the base resin, there might be issues with the dispersion.

3. Have High Enough Compatibility with the Target Resin

This is the most important requirement.

The masterbatch cannot be used alone.

It constitutes only a few percent of the final part.

3. What Does "Compatibility" Actually Mean?

Quite often purchasing personnel believe that

• "It is very easy to use PP masterbatch for PP, PET masterbatch for PET..."

Indeed, it is not that easy.

There are at least several aspects of compatibility:

3.1 Chemical Compatibility

Carrier and base resin should have good compatibility.

If there is low compatibility between these two components, a clear two-phase structure may appear.

This explains why some masterbatches have excellent results in laboratory tests but experience surface problems during production process.

3.2 Melting Temperature and Rheological Properties

Even if two materials are similar on the chemical level, if processing temperature and rheological properties differ too much, the process of dispersion may suffer from it.

Thus, for instance, if masterbatch melting temperature is high enough:

• Viscosity of masterbatch is high

• Masterbatch melts slower

• Masterbatch MFR differs significantly from base resin one

All these factors can influence the final performance.

3.3 Polarity Difference

This is an important aspect that should be paid attention to while choosing masterbatch for engineering plastics such as PET and PA.

PP and PE are examples of non-polar polyolefin materials.

PET and PA have specific structures and polarity features.

So you cannot simply say:

• "If this masterbatch can melt, it is okay."

This is just the beginning.

The question is:

Can it form a stable system after melting with the base resin?

4. PP Masterbatch: Focus on Dispersion, Flow, and Processing Stability

PP is the most common resin used in masterbatch.

It is used in the following areas:

• Injection molding

• Film

• Non-woven fabrics

• Tape yarn

• Home appliances

• Automotive

• Packaging

• Consumer goods

Hence, PP masterbatch is also an advanced product in the market.

4.1 Which Carrier Should Be Used By PP?

For the PP-based products, the typical first choice is:

PP carrier resin.

In some cases, the polyolefin system which has good compatibility with PP can also be chosen.

While choosing, do not only see the 'PP carrier' tag. It is necessary to check:

• MFR

• Processing temperature

• Final loading level

• Injection molding or extrusion

• Part thickness

• Color strength

• Surface needs

4.2 Can PP Injection Molding and PP Film Use the Same Masterbatch?

No, I would not recommend such practice.

For example:

PP Injection Molding

Pays more attention to the following aspects:

• Color uniformity

• Dispersion

• Black specks

• Flow lines

• Surface gloss

• Cycle time

PP Film pays more attention to the following aspects:

• Dispersion

• Gel particles

• Migration

• Film surface properties

• Friction coefficient

• Transparency

• Stability during continuous production

So for the same PP, the different process may require different masterbatch formulation.

5. PE Masterbatch: LDPE, LLDPE, and HDPE Are Not Exactly the Same

Film is another very big masterbatch market.

Some common PEs are:

• LDPE

• LLDPE

• HDPE

• MDPE

Despite belonging to the same polyethylene category, they don't have the same processability.

5.1 Why Is It Important for PE Film to Care About the Carrier?

For film applications, the percentage of adding masterbatches is usually quite low, but the film's thickness is just a few tens of microns.

Which leads to:

The slightest undispersed particle would become a defect.

So PE film masterbatch needs special attention about:

• Pigment dispersion

• Gel

• Black speck

• Fish eye

• Surface defect

• Migration

• Blocking

• COF (coefficient of friction)

It is particularly important for transparent/translucent films.

5.2 Could LDPE and LLDPE Be Added the Same Masterbatch?

Not necessarily, but you cannot consider that as default.

As long as the product does not require high appearance quality, a masterbatch within the same polyolefin family could fit for several PEs.

However, for

• high-speed blown film

• ultra thin film

• high transparency film

• high speed packaging film

• high demanding agricultural film

I suggest you conduct a test run before mass production.

Because it is not "can they work or not", but:

Can they work steadily under your screw, temperature, shear and addition.

6. PET Masterbatch: Why Does It Need More Caution Than PP and PE?

PET is such a typical system that you are not supposed to use the usual masterbatch at all.

It is commonly applied for:

• PET bottle

• PET sheet

• Thermoforming

• BOPET film

• Polyester fiber

• Filament

• Packaging

The processing temperature of PET is normally much higher than the common PE and PP systems.

That means that the first issue to be resolved when using PET masterbatch is heat resistance.

6.1 What Should the PET Carrier Consider?

Main factors:

• Heat stability

• Pigment heat resistance

• Pigment migration

• Dispersibility

• Moisture

• Melting behavior

• Influence on PET properties

When using PET masterbatch in PET spinning applications, even minor dispersing issues will impact the quality of the fiber production.

6.2 Why Is PET Sensitive to Moisture in Particular?

PET normally needs drying before being processed.

In case the moisture is not properly controlled, it may cause the hydrolysis to occur at high temperatures, thus causing the following consequences:

• IV drop

• Reduction of molecular weight

• Changes of mechanical properties

• Stability of spinning decline

This way, when buying PET color masterbatch, I would recommend that you ask not only the following question:

• "What is your carrier?"

You should also ask:

• "What is the moisture content of the master batch? In what form is it stored?"

These two questions are of great significance in PET applications.

7. PA Masterbatch: The Real Test Is Heat Resistance and Long-Term Stability

PA Includes:

• PA6

• PA66

• PA12

• Plus other nylon systems

They are often used for:

• Automotive applications

• Industrial applications

• Electrical goods

• Fibers

• Engineering plastics

One characteristic of PA systems is:

High process temperature, with processing conditions different in various PA grades.

As such, PA masterbatch should address:

• Heat stability

• Pigment stability

• Dispersion

• Moisture

• MFR

• Mechanical properties

7.1 Can PA6 and PA66 Masterbatch Be Used Interchangeably?

No, you cannot answer yes or no.

It depends on:

• Specific PA grade

• Processing temperature

• Glass fiber

• Flame retardant system

• Molding cycle

• Coloring target

• Amount of masterbatch added

For systems, like PA66 + GF30, it is obvious that glass fiber affects melt flow and processing.

That is why, in engineering plastics project, I would usually recommend:

First choose the resin grade, then the masterbatch.

8. ABS Masterbatch: Color Is Only the First Hurdle; Surface Performance Matters Too

ABS is a commonly used engineering plastic, suitable for making:

• Housings of household appliances

• Interiors of automobiles

• Electrical appliances

• Consumer electronics

• Tools

• Toys

• Injection molded products

ABS generally requires high color demands.

In particular:

• Black

• White

• Grey

• Silver

• Custom colors

These colors are particularly susceptible to surface influences.

8.1 What Should ABS Masterbatch Concentrate on?

I would like to advise you on some aspects when purchasing ABS masterbatch.

The first one is Compatibility with Carrier

Don't run into troubles with inappropriate carrier:

• Delamination

• Migration

• Change in gloss

• Surface defects

The second aspect is Heat Stability

ABS injection molding temperature is usually higher than that of ordinary PE, so pigments and dispersion should have enough heat stability.

The third one is Dispersion

Generally, ABS products require high appearance quality.

If dispersion is not good, it may lead to:

• Color spots

• Black spots

• Color streaks

• Uneven gloss

Therefore, ABS color masterbatch can't be assessed based on only color matching.

9. How to Choose TPU Masterbatch? Soft Materials Demand Higher Carrier Compatibility

The main difference between TPU (thermoplastic polyurethane) and polyolefin resins such as PP and PE is that TPU is more polar, and TPU processing temperatures, hardnesses, and applications are all over the map. As a result, TPU masterbatch cannot be chosen according to the principle of "If the colors match, they should work."

In terms of selecting a TPU product, I would generally advise procurement people to figure out the following three issues first:

• Is it a polyester or polyether TPU?

• Is it an injection-molded part, extruded, film, or spun TPU?

• What is the processing temperature? Do you have any need for transparency, yellowing resistance, and migration resistance?

Answering these three questions will make your choice of masterbatch for TPU much more important than just looking at the price of colorants.

Why Is TPU Particularly Sensitive to Carrier Resin?

The very benefits of TPU also become reasons for its being "fussy" with regard to masterbatch.

TPU possesses high elasticity, resistance to abrasion and tearing, flexibility, and it can be manufactured in very soft up to quite stiff articles. For this reason, TPU finds applications in the following fields:

• Phone cases and electronic accessory components

• Automotive interior elements

• Footwear materials

• Films

• Tubes

• Medical products

• Cables and wires

• Industrial seals

However, in case of poor compatibility between masterbatch and the base polymer of TPU, the following issues can arise:

Poor dispersion results in color spots, color lines, and black spots.

Incompatible carrier results in migration, stickiness, and surface defects.

Mismatched processing temperature results in discoloration and degradation.

Lack of pigment stability results in color change after prolonged processing time.

Therefore, for TPU, "color has been made" does not qualify the masterbatch.

10. What Carrier Should TPU Masterbatch Use?

There is no universal carrier for all TPUs.

In general, it is better to focus on the compatibility of the carrier with the TPU resin itself, rather than on the colorant itself.

TPU Carrier

In case of high demands on material properties, transparency and aesthetics, I would recommend using a masterbatch based on TPU.

The main benefit here is the similarity of the carrier and base resin – they understand each other as any other members of one family do.

This approach is best for:

• Transparent and semi-transparent TPU

• High-class injection molding

• TPU film

• Flexible TPUs

• Materials with high sensitivity to aesthetics

Can Any Other Carrier Be Used?

It is not mandatory to use 100% TPU carrier.

Sometimes compatibility can be enhanced using a special dispersion and carrier design. It requires testing of particular TPU grades with respect to temperature and addition rates.

Recommendation: be careful while buying if your supplier promises only the fact that "this masterbatch can be used for TPU".

What Performance Should TPU Masterbatch Focus On?

When compared to common PP and PE masterbatches, the application of TPU normally calls for greater care with respect to the following parameters.

One easily overlooked issue:

The higher transparency of the TPU, the more significant become any problems of masterbatch.

In case of white, light-colored or transparent TPU, even small issues with dispersion can be noticed with a naked eye.

11. How to Choose Carriers for PP, PE, PET, PA, ABS, and TPU?

With TPU added, the core content can be summarized in the table below, which is very useful for purchasing staff:

From the standpoint of the buyer, "the more similar the carrier resin to the base resin," does not necessarily hold true.

What must be determined is whether or not:

The carrier, pigment, dispersant, base resin, and process will yield a stable system.

This is also the reason that the exact same color performs so well in polypropylene but will yield entirely different results in thermoplastic polyurethane.

12. 6 Questions to Ask Suppliers When Purchasing TPU Masterbatch

If this article intends to encompass both purchasing intent and technical intent regarding search, a purchasing checklist will be a great tool.

1. For which type of TPU is this masterbatch intended?

Do not take it for granted that it will be "universal for TPU."

It will be better to know more precisely:

• Polyester-based or polyether-based?

• TPU hardness?

• For transparent TPU?

• For film or injection molding?

2. What should be the addition ratio?

It is not just about costs, but also about physical properties of the final product, and its color.

If a supplier manages to obtain desired color with the lower addition ratio and good dispersion, it will be more valuable for purchasing.

3. What is the processing temperature?

In particular, for TPU injection molding and extrusion.

If the masterbatch has poor heat resistance characteristics, it may happen that everything seems fine during the initial stages, but afterwards:

• Yellowing

• Black spots

• Color fading

• Odor

• Surface defects

4. Do you have actual application experience?

This is a point I believe that purchasing department should give a lot of attention to.

Color produced in laboratory is different from the color produced in actual production process.

Supplier having practical experience in manufacturing of TPU through injection molding, film making, extrusion and other processes using soft materials would definitely react quicker to the problems existing in production.

5. What methods do you apply to ensure consistency in color between batches?

It is extremely important for suppliers producing TPU in large volumes to be consistent in color between batches.

Do not be fooled by the first sample.

The things that you should actually pay attention to are:

• Does the color remain stable in batches 1, 5 and 20?

6. Can you make changes to the current masterbatch formula in case of any problems?

This is an example of how the supplier's technical services differ.

A mature supplier should not only "sell" color number, but should also be able to make necessary adjustments depending on:

Resin → Process → Temperature → Addition Rate → Product Requirements

13. PP, PE, PET, PA, ABS Carrier Selection Comparison

But this table can only serve as a first-step screening tool.

The real selection needs to go further.

14. Do Not Just Compare "Price per Kilogram" When Purchasing Masterbatch

This is a very common pitfall in actual purchasing.

Suppose Supplier A:

$3/kg

Supplier B:

$4/kg

A looks 25% cheaper.

But if:

A needs 5% addition

B needs only 2.5% addition

Then the final cost of use is completely different.

So what you should really calculate is:

Actual coloring cost per ton of finished product

The formula can be simply understood as:

Masterbatch Cost = Masterbatch Price × Addition Rate

For example:

A: $3/kg × 5% = $150/ton

B: $4/kg × 2.5% = $100/ton

On the surface, B has a higher unit price, but the final cost of use is actually lower.

15. 6 Metrics Purchasing Staff Should Also Focus On

First of all, I would not only request a quotation from the supplier.

I would require the supplier to provide at least the following information.

1. Carrier Resin

Just ask directly:

What is the carrier resin?

Accepting an answer such as "PP compatible" is not good enough.

2. Recommended Addition Rate

The addition rate has a direct impact on the price.

I would advise also requesting from the supplier:

• Recommended addition rate

• Maximum recommended addition rate

• Addition rate for various colors

3. MFR / MFI

MFR is neither "the higher the better," nor "the lower the better."

What really matters is:

Does it fit your equipment and base resin?

4. Heat Stability

In particular,

• PET

• PA

• ABS

• Thermoplastics with high temperature resistance

This needs to be tested.

5. Dispersion

Do not test solely based on lab samples.

I would advise the supplier to test on the actual part.

A masterbatch which looks consistent when it's a pellet does not mean it performs consistently once it has been added to the final resin.

6. Batch-to-Batch Consistency

Batch consistency is critical in long-term purchasing, but it is frequently disregarded.

For large scale production companies:

The first part of matching color is easy; maintaining the consistency across several batches is the true supply capability.

16. How Can Technical Staff Judge Whether the Carrier Is Correct?

In case of developing a new color, I would recommend to stick to the below sequence.

Step 1. Clarify the Base Resin

To be clarified:

• PP?

• LDPE?

• LLDPE?

• HDPE?

• PET?

• PA6?

• PA66?

• ABS?

Don't say to the supplier "plastic".

Step 2. Clarify the Processing Method

The same resin requires different solutions for different processing methods.

Such as:

• Injection molding

• Blown film

• Cast film

• Extrusion

• Blow molding

• Fiber spinning

• Sheet extrusion

Step 3. Clarify the Processing Temperature

It is very important base for evaluation of the heat resistance level.

If the processing temperature is:

180°C or 280°C

Clearly, we cannot use the same pigment and dispersion system.

Step 4. Clarify the Product Requirements

For example:

Ordinary black bag and automotive interior part will have totally different masterbatch requirements.

Automotive interior will require:

• High color fastness

• Low VOC

• Low migration

• High dispersion

• Batch consistency

While ordinary packaging item may require:

• Price

• Tinting strength

• Basic dispersion

17. Why Do Masterbatches Made with "the Same Pigment" Perform Differently?

And this is the problem which baffles customers most when tested.

Because, for instance, two manufacturers both state:

• "Our pigment is identical."

However, the outcome is entirely different.

The reasons could be due to:

• Difference in pigment particle size

• Difference in pigment surface treatment

• Different dispersant

• Different carrier resin

• Difference in twin-screw geometry

• Different shear

• Different processing temperature

• Different pigment concentration

Hence:

It is the pigment that gives the basis of the color; the formulation and dispersion technology decide the end result.

Which is why the quality of masterbatches cannot be measured just based on the pigment CI number.

18. Is a Higher-Concentration Masterbatch Always Better?

Not necessarily.

From the point of purchasing, high concentration is very appealing.

For instance:

30% pigment masterbatch

Seems more advantageous compared to:

20% pigment masterbatch

However, the key issue is:

How stable will that 30% dispersion?

In case high concentration results to:

• High viscosity

• Pigment aggregation

• Difficult dispersing

• Increase in melt pressure

• Color specks in the molded parts

Then high concentration might increase risk during the manufacturing process.

Therefore, my recommendation for the purchasing department is:

Efficient coloration cost + dispersion effectiveness + addition rate

Instead of just pigment concentration.

19. Different Applications Have Completely Different Carrier Requirements

It is an extremely critical concept to consider in choosing the appropriate masterbatch.

Film

Important factors:

• Excellent dispersibility

• Minimal migration

• Minimal gel formation

• Surface stability

• Coefficient of friction

Injection Molding

Important factors:

• Good color uniformity

• Thermal stability

• Flow properties

• Surface finish

• Batch uniformity

Fiber

Important factors:

• High dispersibility

• Thermal stability at high temperatures

• Filtering pressure

• Spinning stability

• Mechanical properties

Blow Molding

Important factors:

• Dispersibility

• Tinting strength

• Melt stability

• Appearance of parts

Therefore:

"The same resin" does not mean "the same masterbatch."

20. When Can a Universal Carrier Be Used?

In some cases, there can be a more universal carrier system applied.

For instance:

• Regular PE packaging

• Regular PP injection molding

• Non-critical everyday products

However, when your product has low demands on the visual appearance and performance, then universal carrier system will help to cut down your expenses.

But when you come across such industries as:

• Automotive

• Electronics

• Medical

• Food contact

• High transparency film

• High-speed spinning

• High temperature engineering plastics

I would advise you not to apply the universal carrier system trying to save a few dollars on masterbatch.

And that's because the real cost lies here:

Downtime, scrap, and customer complaints.

21. Do Not Blame the Masterbatch First When Color Differences Appear

In case of any color difference in the actual process, follow this troubleshooting process:

1. Is there any difference in the resin?

Different batches of resin may result in:

• Difference in MFR

• Difference in color tone

• Difference in additives

2. Is there any consistency in the dosing ratio?

In case the manual weighing is not accurate, then naturally there would be a difference in color.

3. Is there any change in the process temperature?

Change in process temperature may impact:

• Melting

• Dispersion

• Stability of the pigment

4. Is there any consistency in screw shear?

Particularly in extrusion and injection process.

5. Is there any consistency in the masterbatch batch?

Only in the end, you should look for the masterbatch.

This is also why a truly mature supplier will try to help the customer build a complete color matching and process control system, rather than just selling pellets.

22. A Simple but Practical Carrier Selection Logic

If you do not want to memorize too much material knowledge, you can start by remembering this logic:

Step 1: Look at the base resin.

PP → PP system

PE → PE system

PET → PET-adapted system

PA → PA-adapted system

ABS → ABS-adapted system

Step 2: Look at the process.

Injection? Film? Extrusion? Fiber? Blow molding?

Step 3: Look at the temperature.

Low-temperature plastics and high-temperature engineering plastics cannot use the same heat resistance requirements.

Step 4: Look at the final product.

Ordinary products and automotive, electronics, medical, and food-contact products have completely different masterbatch requirements.

Step 5: Look at the actual test.

Theoretical compatibility is not the same as actual production compatibility.

23. What Should a Supplier Truly Provide?

Professional masterbatch supplier must know more than just telling their customers:

• "This is a PP masterbatch."

Instead, they have to be aware of:

• Grade of resin

• Temperature of processing

• Processing technique

• Rate of addition

• Thickness of product

• Color specification

• Surface specification

• Regulation specification

• Usage of product outside/inside

Then, to know:

Carrier + Pigment + Dispersant + Processing Technique

This is the true customized color masterbatch.

24. Why Do High-Quality Masterbatch Suppliers Care More About "Formulation Systems"?

Masterbatch technology is far more than "pigment + resin."

For the same color, in different resins, we have to rethink:

• Pigment selection

• Pigment loading

• Carrier compatibility

• Dispersion system

• Thermal stability

• Processing range

In particular, for top-end products, the true challenge is not "make the color" but:

Make sure the color is consistent between batches and equipment, and over long run time periods.

In light of our practical development experience, after customers are in large-scale production, the focus changes from "Can you make the color?" to:

• Why is the first batch OK, but the third batch began to change?

• Why is there no problem in the laboratory, but there are color spots during large-scale production?

• Why is there a color change when the supplier changes one batch of materials?

These questions are essentially related to the formulation system, raw material control, and production quality management.

25. How to Judge Whether a Supplier Truly Understands Carriers

These 8 questions can be asked directly to the supplier by the purchasing team.

1. What is the carrier resin?

Not to accept the answer "compatible with PP/PE".

2. What is the recommended addition rate?

To verify the actual cost of use.

3. What is the MFR?

To assess the compatibility.

4. What is the processing temperature?

To verify the heat resistant range.

5. What are the pigments used?

Especially when it comes to high-temperature and outside applications.

6. How do you control dispersion?

This is an essential question for assessing technical competence.

7. How do you control batch-to-batch consistency?

To see whether the supplier really has a quality control system.

8. Can you test it on our resin?

This is the most essential question.

As it should be understood that the reliable test must be carried out on our own resin.

26. Conclusion: Look at the Carrier Before the Price

The main idea that I would like you to remember from this article is:

Masterbatch for coloring is not a universal product which "works with any plastic."

Although PP, PE, PET, PA, ABS and TPU belong to thermoplastics, each of them has a different polarity, melting temperature, rheology, processing temperature window and end use application.

So, the correct order of selection of masterbatch should be:

Resin → Processing Technique → Processing Temperature → Carrier Resin → Pigments → Addition rate → End use performance

And not:

Color → Price → Order

For purchasing specialists, the proper choice of carrier will allow controlling the long-term cost and stability of supply. For technical specialists, the proper choice of carrier resin is the basis for dispersion, coloring, processing and end use performance.

If your product is an ordinary PP/PE component, then the universal approach could be applicable.

However, if your product includes automotive, electronics, medical devices, food contact, engineering plastics with a high service temperature, ultra-thin films, fibers and/or products with high transparency requirements, then I would recommend you to inform the supplier of masterbatch about your resin grade, processing temperature and manufacturing process before ordering.

The ideal masterbatch should not only be "the correct color".

It should be:

Compatible with your resin, compatible with your machinery, compatible with your process, and capable of running your process in a stable manner.

When you are choosing color masterbatch for PP, PE, PET, PA, ABS, TPU, or any other resin, you can provide us with your resin grade, process type, process temperature, required color, and recommended addition level. We will be able to assess the carrier resin and system formulation according to your real production environment.