Compounders & modified-plastics producers
Developing PP, PA and other mineral-filled compounds for defined part requirements.
← Wollastonite applicationsPerformance after processing.
ENGINEERING PLASTICS & AUTOMOTIVE
Performance after processing.
That is the benchmark.
High-aspect-ratio and surface-modified wollastonite for PP, PA and other engineering compounds. Select for dispersion, finished-part performance and total formulation cost, supported by a defined comparison programme.
IS THIS YOUR TEAM?
Masterbatch manufacturers
Selecting mineral dispersion, particle distribution and surface compatibility for concentrate systems.
Technical formulation teams
Comparing fillers and partial reinforcement replacement before component qualification.
BUILD THE MATERIAL BRIEF
A grade built around your purchasing requirements.
We supply high-quality wollastonite for engineering plastics & automotive. Share the requirements below so we can match a grade, prepare a sample and quote against a clear specification.
| Decision area | Your requirements | Qualification & acceptance |
|---|---|---|
| Morphology before & after processing | Raw-powder aspect ratio, particle-length distribution and morphology retained after mixing / extrusion. | Paired microscopy using agreed sampling, extraction and image-analysis methods; report the distribution and retention definition. |
| Chemistry & particle distribution | Brightness, Fe₂O₃, D10 / D50 / D97, oversize, oil absorption, moisture and LOI. | Full material specification and test conditions, beyond mesh alone. |
| Dispersion & compatibility | PP / PA grade, resin moisture, silane / titanate treatment and coupling package. | Dispersion and processing observations with the agreed resin and loading. |
| Mechanical properties | Tensile, flexural and impact performance. | Specimens made, conditioned and tested under the same documented protocol. |
| Thermal & dimensional behaviour | HDT, shrinkage, warpage and surface finish. | Compare equivalent specimen geometry and moulding conditions. |
| Consistency & supply | Batch control ranges, lead time and application-support scope. | Request multi-batch trends and agree the trial, documentation and delivery schedule. |
BD200 is one example in our supply range. Your application can use a different specification, selected and qualified against your requirements. View the BD200 reference ↗
THREE MATERIALS · ONE TEST PLAN
Compare wollastonite,
talc and glass fibre.
Request a coordinated comparison of your incumbent materials and a matched wollastonite grade. Define the resin, loading basis and processing protocol before preparing compounds or test specimens.
Application-specific grade
Define aspect ratio, particle distribution, surface treatment and the expected retained morphology.
Your reference grade
Use the named incumbent talc grade at the agreed loading to compare dispersion, finish and measured performance.
Your reinforcement reference
Record fibre grade, sizing and loading. Compare mechanical balance, dimensional behaviour and surface quality.
Keep the comparison meaningful.
Use the same resin lot and a stated loading basis (weight or volume), with controlled mixing, extrusion, moulding and specimen conditioning. Record any necessary process changes. Evaluate tensile, flexural, impact, HDT, shrinkage, warpage, finish and compound / part cost.
For partial glass-fibre replacement: add a hybrid formulation alongside the original glass-fibre control. Target surface improvement, reduced warpage or lower total cost, while meeting the required mechanical properties.
Powder samples, compounded pellets and moulded test specimens have different preparation requirements. Reference-material sourcing, specimen preparation, trial scope and delivery arrangements are confirmed for each request. Results are measured in the agreed formulation.
QUALITY DEFINED WITH YOU
High-quality material.
Supplied to the agreed specification.
We supply qualified wollastonite materials for the applications we serve. Quality is defined by your agreed grade, test methods and acceptance limits, with product selection tailored to the way you manufacture.
Your specification
Set chemistry, particle distribution, brightness, morphology and any treatment requirements.
Your approved sample
Evaluate a representative grade in your formulation and agree the material acceptance criteria.
Your supply standard
Agree batch COA requirements, key-parameter control ranges, packaging and a confirmed delivery schedule.
Consistency & technical follow-up
Request multi-batch trends and define application-trial support, issue review and repeat-order requirements.
Request the grade-specific documentation your team needs. Any third-party certification or destination-specific approval is confirmed through its applicable documents.
YOUR QUALIFICATION VARIABLES
Resin ×morphology × processA high raw-powder aspect ratio is only the starting point.
Mixing and extrusion can change particle morphology. Evaluate the retained length and aspect-ratio distribution after processing, then relate those measurements to the properties of the compound and moulded part.
We focus on formulation optimisation and partial replacement opportunities. Surface finish, warpage, mechanical balance and total cost must be demonstrated in your system; the appropriate replacement level follows from those results.
Source context reviewed 8 October 2026. External references do not certify our products.FROM REQUIREMENT TO SAMPLE
A practical path to evaluation.
Define the component
Tell us your polymer, current filler, loading and target part.
Match the mineral
Agree morphology, particle size, treatment and documentation needs.
Compare the compound
Measure properties, processing and part mass against your baseline.
BEFORE YOU START
Your questions.
Clear answers.
Can wollastonite replace glass fibre, talc or mica?
Treat it as a formulation comparison. A replacement ratio cannot be set without assessing strength, stiffness, impact, processing, appearance and cost in your system.
Does a higher aspect ratio always perform better?
Select morphology for the required balance of properties and processing. Include dispersion and retained particle shape after compounding in the comparison.
Is the product approved for automotive parts?
No specific automotive or OEM qualification is represented on this page. Confirm all component and customer requirements through the relevant qualification process.
LET’S DEFINE YOUR PROJECT
Request your free custom sample.
Tell us about your engineering plastics & automotive requirements. We will match the material specification to your application and requested supply terms.
info@swasky.com ↗
Hangzhou Bofeng Import & Export Co., Ltd.
WHATSAPP+1 574 359 0940 ↗Message us about specifications, quotations and free custom samples.
Use the brief below to describe your targets. You can attach specifications or test protocols when sending the email.
Free samples, matched to your requirements. Share your application and target parameters. We will confirm the proposed grade, sample quantity and dispatch arrangements by email.