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

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Qingdao Exceed Fine Chemicals Co.,Ltd

City: qingdao

Province/State:shandong

Country/Region:china

Tel:86-532-86551935

Contact Person:
Mr.Louis.liu View Contact Details

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

Brand Name	EXCEEDCHEM
Model Number	EMH490-A / EMH490-B
Certification	ISO9001:2008
Place of Origin	China
Minimum Order Quantity	1mt
Price	to be negotiated
Payment Terms	L/C,T/T
Supply Ability	1000mt/month
Delivery Time	14 work days
Packaging Details	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

Detailed Product Description

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

Product Tags: Polyurethane prepolymer 90A hardness Cold cast polyurethane rollers PU rollers EMH490-A EMH490-B

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