Polymer & Plastics Knowledge
Masterbatch, fillers, PVC systems and processing additives — dosage, dispersion, defects and grade selection.
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The answers buyers and process engineers open first in this category.
- Apparent Die Shear Rate & Melt-Fracture PredictorCalculate apparent wall shear rate for slit and circular dies and see when the line enters the sharkskin and melt-fracture window.sharkskin · melt fracture · matt surface · orange peel · die lines
- Extrusion Troubleshooting & Process Diagnostics MatrixFind the root cause of gels, black specks, sharkskin, die build-up, thickness variation and other extrusion defects, with the checks and remedies for each.gels · black specks · sharkskin · die build-up · die drool
- Composite Density & Filler Loading CalculatorConvert between weight and volume in a filled compound: composite density, volumetric substitution and the real yield effect of calcium carbonate or talc loading.part weight increased after filling · yield loss with filler · density out of specification · cost per part misjudged
- Compound Cost per Tonne CalculatorBlend resin and filler prices into a single cost per kg and cost per tonne, and see the saving a given filler loading actually delivers.compound cost too high · resin price increase · filler payback unclear
- Masterbatch Let-Down Ratio (LDR) CalculatorWork out the let-down ratio and kg-per-batch dosage for white, colour, filler and additive masterbatch, with the polymer matrix back-filled automatically.wrong masterbatch dosage · colour shade drift · opacity too low · over-dosing masterbatch · recipe does not close at 100%
- Polymer QC Standards & Test Method MatrixSearch the ASTM and ISO methods used to qualify masterbatch, fillers and compounds — ash content, MFI, dispersion, moisture, tensile and colour — with practical limits.inconsistent incoming quality · supplier certificate dispute · ash content out of specification · melt flow index variation · moisture defects
Solve a Problem
Start from the symptom you see on the line.
- Anti-block / Slip Masterbatch — Film Blocking Together or Feeding PoorlyFreshly wound film sticks to itself, or converted bags do not open or feed through packaging machines.blocking
- Anti-fog Masterbatch — Fog or Water Droplets Inside Greenhouse or Food Packaging FilmWater condenses as droplets inside greenhouse film (blocking light) or food packaging film (blurring product view and dripping onto food).blocking
- Anti-static Masterbatch — Static Electricity on Plastic Film or PartsPlastic parts or film hold a static charge — attracting dust, sticking, or creating ESD risk in electronics packaging.
- Desiccant Masterbatch — Bubbles, Streaks, or Splay When Processing Regrind or Wet ResinRegrind or hygroscopic-contaminated resin produces bubbles, silver streaks, or splay marks in the finished part, and drying is not practical or sufficient.
- Flame Retardant Masterbatch — Plastic Burns or Fails a Flame RatingA plastic part must pass a flame-rating standard (e.g., UL 94 V-0, glow-wire, FMVSS 302) and the base resin fails.
- Laser-Marking Masterbatch — Cannot Laser-Mark on Dark or Colored PlasticA part needs a permanent, high-contrast laser mark (barcode, batch code, logo) and the base resin does not respond — the mark is faint, blurred, or invisible.
Choose & Compare
Grade, material and specification decisions side by side.
- Agricultural Film MasterbatchAgricultural Film Masterbatch is the Masterbatch selection problem for blown or cast agricultural film extrusion — typically in LDPE, LLDPE, EVA. There is no single SKU for this application: the right grade depends on your polymer, process window, color…
- Automotive Injection MasterbatchAutomotive Injection Masterbatch is the Masterbatch selection problem for injection molding of automotive interior and under-hood parts — typically in PP, PP compound, ABS, PC/ABS, PA.
- Blow Molding MasterbatchBlow Molding Masterbatch is the Masterbatch selection problem for extrusion blow molding or injection stretch blow molding — typically in HDPE, PP, PET, PVC.
- Blown Film MasterbatchBlown Film Masterbatch is the Masterbatch selection problem for blown film extrusion — typically in LDPE, LLDPE, HDPE.
- Bottle MasterbatchBottle Masterbatch is the Masterbatch selection problem for blow molding of consumer bottles — typically in HDPE, PET, PP.
- Caps & Closures MasterbatchCaps & Closures Masterbatch is the Masterbatch selection problem for injection molding of closures — typically in HDPE, PP.
Learn
How the material and the process actually behave.
- Carrier Selection for Color MasterbatchBefore requesting samples of a Color Masterbatch, you can rule out most incompatibility problems in about ten minutes using the supplier's technical data sheet. Match the carrier resin family declared on the data sheet to your host polymer family, confirm…
- Pigment Selection for Color MasterbatchChoosing the right pigment system means matching five properties of the pigment to the realities of your application and process: opacity, heat resistance, weatherability, migration risk, and regulatory requirements. Organic pigments generally give…low opacity
- Color Stability in Color MasterbatchColor in a plastic part changes for four reasons: thermal stress during processing, indoor light exposure over service life, outdoor UV exposure, and interactions between the pigment system and the host polymer, additives, moisture, or regrind. These are…
- Color Masterbatch Explained: Types, Applications and Selection PrinciplesColor Masterbatch is an engineered polymer concentrate — pigment dispersed and stabilized inside a carrier resin, not simply colored powder. It is added to a host polymer at a defined let-down ratio to deliver consistent color, thermal stability and…poor dispersion
- Antioxidants for Plastics: Industrial EcosystemThey protect polymers from thermal-oxidative degradation during processing (primary — hindered phenolics, restricted amines) and during long-term service (secondary — phosphites, thioesters). Without them, melt viscosity drops, colour drifts and mechanical…colour inconsistency
- Antioxidant MasterbatchAntioxidant packages (primary, secondary, and combined) delivered as masterbatch on PE, PP or PET carriers, sized for extrusion, injection, and recycled-content compounding.
Calculate & Tools
Calculators and matrices that return a number.
- Masterbatch Let-Down Ratio (LDR) CalculatorWork out the let-down ratio and kg-per-batch dosage for white, colour, filler and additive masterbatch, with the polymer matrix back-filled automatically.wrong masterbatch dosage · colour shade drift · opacity too low · over-dosing masterbatch · recipe does not close at 100%
- Composite Density & Filler Loading CalculatorConvert between weight and volume in a filled compound: composite density, volumetric substitution and the real yield effect of calcium carbonate or talc loading.part weight increased after filling · yield loss with filler · density out of specification · cost per part misjudged
- Apparent Die Shear Rate & Melt-Fracture PredictorCalculate apparent wall shear rate for slit and circular dies and see when the line enters the sharkskin and melt-fracture window.sharkskin · melt fracture · matt surface · orange peel · die lines
- Compound Cost per Tonne CalculatorBlend resin and filler prices into a single cost per kg and cost per tonne, and see the saving a given filler loading actually delivers.compound cost too high · resin price increase · filler payback unclear
- Extrusion Troubleshooting & Process Diagnostics MatrixFind the root cause of gels, black specks, sharkskin, die build-up, thickness variation and other extrusion defects, with the checks and remedies for each.gels · black specks · sharkskin · die build-up · die drool
- Polymer QC Standards & Test Method MatrixSearch the ASTM and ISO methods used to qualify masterbatch, fillers and compounds — ash content, MFI, dispersion, moisture, tensile and colour — with practical limits.inconsistent incoming quality · supplier certificate dispute · ash content out of specification · melt flow index variation · moisture defects
Browse all Polymer & Plastics knowledge
- All Polymer & Plastics Processing articlesPolymer & Plastics Processing questions & answersPolymer & Plastics Processing guide directory
- All Masterbatch articlesMasterbatch questions & answersMasterbatch guide directory
- All Colour Masterbatch articlesColour Masterbatch questions & answersColour Masterbatch guide directory
- All White & Desiccant Masterbatch articlesWhite & Desiccant Masterbatch questions & answersWhite & Desiccant Masterbatch guide directory
- All Polymer × Masterbatch articlesPolymer × Masterbatch questions & answersPolymer × Masterbatch guide directory
- All Application × Masterbatch articlesApplication × Masterbatch questions & answersApplication × Masterbatch guide directory
- All Additive & Functional Masterbatch articlesAdditive & Functional Masterbatch questions & answersAdditive & Functional Masterbatch guide directory
- All PVC Additives articlesPVC Additives questions & answersPVC Additives guide directory
- All Performance Additives articlesPerformance Additives questions & answersPerformance Additives guide directory
- All Mineral Fillers, Pigments & Reinforcement articlesMineral Fillers, Pigments & Reinforcement questions & answersMineral Fillers, Pigments & Reinforcement guide directory
- All Calcium Carbonate articlesCalcium Carbonate questions & answersCalcium Carbonate guide directory
- All Titanium Dioxide articlesTitanium Dioxide questions & answersTitanium Dioxide guide directory
- All Stearic Acid articlesStearic Acid questions & answersStearic Acid guide directory
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