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Home > Products > Low Free Polyurethane > Low Free TDI / Polyester Prepolymer LFE4390 Equivalent To LF1900A

Low Free TDI / Polyester Prepolymer LFE4390 Equivalent To LF1900A

Product Details

Place of Origin: China

Brand Name: EXCEEDCHEM

Certification: ISO9001:2008

Model Number: LFE225

Payment & Shipping Terms

Minimum Order Quantity: 1mt

Price: 5.8usd/kg

Packaging Details: 25KG/DRUM,220KG/DRUM

Delivery Time: 5-8 work days

Payment Terms: L/C,T/T

Supply Ability: 1000mt/month

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Low Free Polyester Prepolymer

,

TDI Polyester Prepolymer

Product Name:
Low Free TDI/Polyester Prepolymer LFE4390 Equivalent To LF1900A
NCO Content (%):
4.4 ± 0.2
Viscosity, 90℃,cps:
1450
Hardness, Shore A:
90 ± 2
Pot Life, Min:
8
Appearance, 25℃:
Solid
Product Name:
Low Free TDI/Polyester Prepolymer LFE4390 Equivalent To LF1900A
NCO Content (%):
4.4 ± 0.2
Viscosity, 90℃,cps:
1450
Hardness, Shore A:
90 ± 2
Pot Life, Min:
8
Appearance, 25℃:
Solid
Low Free TDI / Polyester Prepolymer LFE4390 Equivalent To LF1900A

Low Free TDI/Polyester Prepolymer LFE4390 Equivalent to LF1900A


1. Description

LFE4390 is a TDI-polyester-based product with a very low free TDI content (typically less than 0.1%). This results in a non-toxic polyurethane system and reduces processing hazards. LFE4390 offers lower viscosity, longer pot life, and faster demolding. Its compatibility with a range of curatives enables high productivity. The resulting elastomer exhibits good abrasion resistance, compression set, tear strength, and dynamic properties.


2. Product Specification


Properties Typical Value
NCO Content (%) 4.4 ± 0.2
Hardness Shore A 90±2
Viscosity, 90℃,cps 1450
Appearance, 25℃ Solid
Tensile Strength, MPa 52.4
Elongation at Break, % 480
Tear Strength, kN/m 112
Rebound, Bayshore, % 37



3. Storage

Store away from moisture, at temperature lower than 30°C with original sealed container.


4. Package

25kg/drum or 240kg/drum.


Overall Rating

5.0
Based on 50 reviews for this supplier

Rating Snapshot

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All Reviews

P
P*y
Italy Jan 23.2026
Fast response speed, a pleasant collaboration
R
Rubber to Metal Bonding Primer 815GB Alternative of Chemlok 205
Thailand Apr 16.2025
Excellent product! It is a good replacement of Chemlok 205.
R
Replacement of Chemosil 411 Heat Vulcanization Adhesive 829GB
Saudi Arabia Dec 2.2024
829GB works well. We apply between cured rubber sheet to steel as a strong adhasive..specially to steel roller and lining of tanks to protect steel from different liquid chemicals and other similar use.