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Home > Products > Cold Cast Polyurethane > Polyurethane Prepolymer 90A Hardness for PU Rollers EMH490-A / EMH490-B

Polyurethane Prepolymer 90A Hardness for PU Rollers EMH490-A / EMH490-B

Product Details

Place of Origin: China

Brand Name: EXCEEDCHEM

Certification: ISO9001:2008

Model Number: EMH490-A / EMH490-B

Payment & Shipping Terms

Minimum Order Quantity: 1mt

Price: to be negotiated

Packaging Details: 20KG/DRUM

Delivery Time: 14 work days

Payment Terms: L/C,T/T

Supply Ability: 1000mt/month

Get Best Price
Highlight:

Polyurethane prepolymer 90A hardness

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Cold cast polyurethane rollers

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PU rollers EMH490-A EMH490-B

Appearance:
Light Yellow Liquid
Tensile Strength(Mpa):
8-13
Hardness (shore A):
90±2
Elongation At Break(%):
400-450
Tear Strength (kN/m):
58-63
Packing:
20KG/DRUM
Appearance:
Light Yellow Liquid
Tensile Strength(Mpa):
8-13
Hardness (shore A):
90±2
Elongation At Break(%):
400-450
Tear Strength (kN/m):
58-63
Packing:
20KG/DRUM
Polyurethane Prepolymer 90A Hardness for PU Rollers EMH490-A / EMH490-B
Polyurethane Prepolymer 90A Hardness for PU Rollers EMH490-A / EMH490-B
Key Attributes
Attribute Value
Appearance Colorless or Light yellow transparent liquid
Tensile Strength (Mpa) 13-18
Hardness (shore A) 90±2
Elongation at Break (%) 400-450
Tear Strength (kN/m) 58-63
Packing 20KG/DRUM
Product Overview

This two-component system consists of EMH490-A (polyurethane prepolymer) and EMH490-B (curing agent), offering exceptional processing properties and performance characteristics.

Key Features
  • Excellent abrasion and hydrolysis resistance
  • High transparency with color customization through pigment addition
  • Superior resilience and dimensional stability
  • Fast curing with shorter gel time
  • Solidifies at common temperatures
Applications

Ideal for multiple industrial applications including:

  • Cultural stone mold production (alternative to silicone rubber)
  • Electrical equipment potting
  • Rubber rollers, plates, and wheels
  • Ski and snowboard components
  • Shoe models and manufacturing
Technical Specifications
Type EMH490-A EMH490-B
Viscosity (mPa*s/25℃) 1200±300 500±100
Appearance Colorless or light yellow transparent liquid Light yellow liquid
Processing Parameters
Parameter Value
Mixing Ratio (A:B mass ratio) 1:1
Operating Temperature (℃) 25~40
Gel Time (25-30℃/min) 6~9
Final Product Appearance Light yellow elastomer
Physical Properties
Property Value
Hardness (shore A) 90±2
Tensile Strength (Mpa) 8-13
Elongation at Break (%) 400-450
Tear Strength (kN/m) 58-63
Rebound (%) 33-38
Specific Gravity (25℃) (g/cm3) 1.17
Storage & Handling

Store in a cool, dry place. For partial use, fill container with nitrogen gas before resealing.

Shelf Life

6 months from production date when stored under recommended conditions.

Packaging

20KG/DRUM

Polyurethane Prepolymer 90A Hardness for PU Rollers EMH490-A / EMH490-B 0