PM40 Toughening Modifier for PVC Foamed & Solid Extrusion Profiles

PM40 Toughening Modifier for PVC Foamed & Solid Extrusion Profiles

PM40 is a multi-purpose toughener engineered for foamed and solid PVC profiles alike. It boosts impact performance, toughness and anti-cracking property, lowers material brittleness, and optimizes extrusion stability as well as service life of finished goods. As an all-in-one auxiliary agent, it is an indispensable raw material for current PVC profile formulas, allowing producers to manufacture premium products for various scenarios by adopting just one single additive.

Description

Product Principle

PM40 works to adjust PVC microscopic structure in the extrusion process. It achieves even dispersion inside the resin and forms a delicate and uniform internal structure, which evenly absorbs and disperses impact force across the whole material to avoid stress accumulation at vulnerable areas. When used for foamed PVC products, it stabilizes foam cells and reinforces cell wall structure to stop cell merging and collapse. Its toughening function relieves internal residual stress that causes cracking and early product damage. Meanwhile, its special molecular structure increases PVC chain intertwining to upgrade overall mechanical performance.

Performance Characteristics

PM40 offers all-round toughening effects suitable for both foamed and solid PVC profiles. It greatly raises material impact strength, lifting notched impact performance by 40–60% on average and avoiding brittle breakage under external force. This auxiliary restrains crack generation and expansion, extending the service life of products under repeated load by 2 to 3 times. It strengthens melt strength and lessens extrusion surging to stabilize production, broadening the processing temperature range and supporting faster production speed. Featuring 98% active ingredient and strictly controlled particle size (coarse residue ≤2%), PM40 disperses quickly evenly, providing stable and efficient performance with low production loss.

Usage and Dosage

Total adding proportion: 4–12% based on the whole PVC formula

Foamed PVC profiles: 6–10% (to maintain uniform foam cells and balanced physical properties)
Solid non-foaming PVC profiles: 10–12% (to achieve maximum toughness and impact resistance)
The most suitable addition amount should be confirmed through actual formula testing.

Special Instruction

pm40 toughening modifier for pvc foamed solid extrusion profiles-1

Product Advantages

1. Dual Application Versatility：
PM40 performs effectively in both foaming and non-foaming PVC profiles, simplifying inventory management and formulation development. Manufacturers can stock a single additive for multiple product lines, reducing complexity and purchasing costs. Its adaptable nature ensures optimal performance across diverse applications without the need for application-specific variants.

2. Comprehensive Toughness Improvement：
The additive enhances multiple toughness parameters simultaneously, including impact resistance, crack resistance, and flexibility. This comprehensive approach ensures products withstand various failure mechanisms including sudden impact, slow crack growth, and cyclic fatigue. The result is products that remain reliable throughout their intended service life under real-world conditions.

3. Brittleness Reduction and Durability Enhancement：
PM40 significantly reduces brittleness in PVC products, making them more resilient to handling, installation, and in-service stresses. This extends product life and reduces failure rates in applications ranging from construction to furniture. The reduced brittleness also improves safety by eliminating sharp fracture surfaces that could cause injury.

4. Processing Stability Improvement：
By enhancing melt strength and reducing pulsation, PM40 improves processing stability and consistency. This reduces scrap rates by 15-25% in typical production environments and enables higher production speeds without quality compromise. The improved stability also means less operator intervention and more consistent product quality throughout production runs.

General instructions

Packing: 25 kg/bag
Storage: Conventional storage
Processing: Valid for 2 years
Note: Store in cool, dry warehouse, avoid rain, moisture. When stored, it must be kept away from fire and heat sources, avoid exposure to sunlight, and prohibit direct contact with acids, alkalis, or mixing.

Applications

1. PVC Foaming Profiles：
In foaming profiles such as foam boards, trim, and decorative moldings, PM40 improves cell wall integrity while enhancing overall toughness. It ensures foamed products maintain mechanical performance despite reduced density, with uniform cell structure that provides consistent properties throughout. The enhanced melt strength also improves foam quality and reduces density variation.

2. PVC Non-foaming Profiles：
For solid profiles requiring maximum durability in demanding applications such as industrial components, transportation, and heavy construction, PM40 provides comprehensive toughness enhancement and crack resistance. This ensures reliable performance under continuous load, impact, and environmental stress.

3. PVC Window and Door Profiles：
PM40 improves the impact resistance and weatherability of window and door profiles, reducing the risk of damage during installation and service while extending product life. The enhanced toughness is particularly valuable in corners and welded joints where stress concentrates and failure often initiates.

4. PVC Construction Profiles：
In construction applications where durability is critical, such as roofing components, siding, and structural elements, PM40 ensures profiles maintain structural integrity under mechanical stress and environmental exposure. The improved crack resistance prevents failure initiation at notches, cuts, and attachment points.

Company Introduction：
Maijisen is a technology-driven manufacturer of PVC additives, headquartered in Kunshan, Jiangsu. Since 2009, we have specialized in calcium zinc stabilizers, ACR processing aids, foaming regulators, and lubricants. Our products are used in PVC/WPC profiles, boards, flooring, pipes, cables, and footwear. With a 12,000 sqm production base and a 400 sqm R&D center in Yancheng, we are committed to innovation and quality.