AIM LE-551 IMPACT MODIFIER

AIM LE-551 IMPACT MODIFIER

(Acrylic Impact Modifier LE-551)

Product Category: Impact modifier for rigid PVC (uPVC)

Product Description

AIM LE-551 is an acrylic-based impact modifier specifically designed for rigid PVC (uPVC) applications.
It significantly enhances impact resistance, toughness, and mechanical strength, while effectively reducing brittleness and cracking—without affecting product color or transparency.

AIM LE-551 is well suited for PVC products that require high durability, stable processing performance, and long-term outdoor resistance.

Key Features

• Excellent improvement in toughness and impact resistance 
• Reduces brittle fracture, especially at low temperatures 
• Enhances processability and dimensional stability during extrusion and molding 
• Excellent compatibility with PVC, easy dispersion, no color interference 
• Provides smooth, glossy surface finish and high thermal stability 
• Can be used in combination with Processing Aid LE-910 to optimize melt flow and surface quality 

Applications

• Rigid PVC (uPVC) pipes 
• uPVC window and door profiles 
• PVC sheets, trims, and profiles 
• Injection-molded PVC fittings 
• PVC products requiring high impact strength, crack resistance, and outdoor durability 

Recommended Dosage

• 5 – 10% by weight of PVC resin
  (Depending on required impact performance and processing conditions) 

Typical Technical Data