OJSC Efremov Synthetic Rubber Enterprise

Ефремовский завод синтетического каучука

Composite material LENPRENE

Specification
Properties Values for grades
1035 1020 2035 2020 3035 3020
Appearance Homogeneous viscous mass, light gray to dark brown color
Volume index of melt flow (130°C, 10 kg), cm³/10 min 600-1700 50-650 40-450
Unsaturation, % mol 2.0-3.5 9.5-11.5 2.0-3.5 9.5-11.5 2.0-3.5 9.5-11.5
Weight loss (105°C, %) ≤ 0.3
Mass fraction of ash, % ≤ 0.10
Thickening capacity, mm²/s ≥ 5.0 ≥ 15.0

Description

The LENPRENE material is a vulcanizable composition based on liquid polyisobutylene and polyisoprene. Does not contain solvent.

Areas of use

The combination of chemical resistance, gas impermeability, weather and water resistance of the material of indicated grades makes it possible to use it as a main polymer or an effective additive for the manufacture of the following products:
- construction sealants, chemical-resistant sealants and adhesives;
- fire-resistant, moisture-resistant and chemical-resistant coatings for tanks and cisterns, marine vessels, roofing coverings;
- as reactive plasticizers for rubber compounds based on butyl rubber in the production of automobile tires and inner tubes;
- as modifiers (additives) of rheological properties for oils.

Packaging and Transportation

The composition material is packed in 20 kg cardboard boxes and 100-230 dm³ steel barrels or consumer containers.
Product can be shipped by any type of transport.

Warranty period

Two years from the date of manufacture.

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