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How to Increase Impact Strength in Plastic?

High Impact Modifier Solutions for PP, PE, PVC & Engineering Plastics

Quick Answer: To increase the impact strength of plastic, Siya Polymer's high-performance impact modifiers are used in PP, PE, PVC and engineering plastics. These additives reduce brittleness and improve the toughness and long-term durability of the finished product.

Why This Happens

This is the most common problem faced by moulders and compounders — the finished part cracks during a drop test or normal handling, or you get a field complaint that the product is "too brittle." The root cause is usually the inherent brittleness of the base polymer, especially when the filler loading is high, the wall section is thin, or there are weld lines and sharp corners where stress concentrates. Left unaddressed, this leads to warranty claims, failed drop-test/impact-test specifications, and repeat customer complaints. Siya Polymer & Speciality Chemicals helps manufacturers solve this problem permanently with the right impact modifier selection, without significantly affecting other properties of the finished product such as rigidity, gloss and dimensional stability.

High Impact Modifier Solutions for PP, PE, PVC & Engineering Plastics — Key Questions Answered

How to increase impact strength in PP (polypropylene)?

Siya Polymer's high-performance impact modifiers can be directly compounded into PP, PE, PVC and engineering plastics.

How to increase impact strength in PE (polyethylene)?

Siya Polymer's high-performance impact modifiers can be directly compounded into PP, PE, PVC and engineering plastics.

How to improve impact resistance in engineering plastics?

Siya Polymer's high-performance impact modifiers can be directly compounded into PP, PE, PVC and engineering plastics.

How much impact modifier dosage is needed to increase impact strength?

Siya Polymer's high-performance impact modifiers can be directly compounded into PP, PE, PVC and engineering plastics.

Siya Polymer's Solution

Siya Polymer's high-performance impact modifiers can be directly compounded into PP, PE, PVC and engineering plastics. They act as micro-level toughening particles inside the polymer matrix, stopping crack propagation and significantly increasing impact strength — while keeping stiffness, gloss and processing behaviour largely unchanged. Our technical team helps you select the correct impact modifier grade and dosage based on your polymer, filler loading and part design.

See Impact Modifier Range →

Every application is different — call Siya Polymer & Speciality Chemicals and describe your exact problem, and our technical team will recommend the right grade and dosage.

📞 Call +91 70404 14615 💬 WhatsApp Us

Frequently Asked Questions

To increase the impact strength of plastic, Siya Polymer's high-performance impact modifiers are used in PP, PE, PVC and engineering plastics. These additives reduce brittleness and improve the toughness and long-term durability of the finished product.

Siya Polymer's high-performance impact modifiers can be directly compounded into PP, PE, PVC and engineering plastics.

Siya Polymer's high-performance impact modifiers can be directly compounded into PP, PE, PVC and engineering plastics.

Siya Polymer's high-performance impact modifiers can be directly compounded into PP, PE, PVC and engineering plastics.

Siya Polymer's high-performance impact modifiers can be directly compounded into PP, PE, PVC and engineering plastics.

ISO 9001:2015 Certified Company - Siya Polymer & Speciality Chemicals Quality Certification

ISO 9001:2015 Certified Company

Siya Polymer & Speciality Chemicals follows internationally recognized quality management standards, ensuring consistent quality, reliability and trust for every polymer additive, PP compound and specialty chemical we supply across Maharashtra and India.

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📱 +91 70404 14615 (Harshal Mali)
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