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SKYPRENE® 640

Technical Datasheet | Supplied by Tosoh

SKYPRENE® 640 by Tosoh is a mercaptan-modified chloroprene rubber (CR). Exhibits excellent crystallization resistance and high viscosity. SKYPRENE® 640 is suitable for extruded and calendered products.

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Product Type

BR (Butadiene Rubber - Polybutadiene)

Product Status

COMMERCIAL

Applications/ Recommended for

Extrusion
Calendering

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SKYPRENE® 640 Properties

Physical Properties

Value & Unit

Test Condition

Test Method

Mooney Viscosity

70 - 100

(ML (1+4) 100°C)

Scorch Time (t₅)

7.1 min

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