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RX® 640

Technical Datasheet | Supplied by Sumitomo Bakelite

RX® 640 by Sumitomo Bakelite is a fiberglass reinforced, ammonia-free, phenolic resole compound. Exhibits good strength at elevated temperatures and good dimensional stability. It is suitable for processing by compression molding, transfer molding and injection molding. RX® 640 is complies with RoHS2 (2011/65/EU) & REACH/SVHC regulations and meets UL 94 V-0 flame rating.

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Product Type

P or PF (Phenolic / Phenol Formaldehyde Resin)

Physical Form

Granules

Appearance

Black

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RX® 640 Properties

Physical Properties

Value & Unit

Test Condition

Test Method

Specific Gravity

1.76 -

ASTM D792

Apparent Density

0.8 g/cm³

ASTM D1895

Linear Mold Shrinkage

0.20 %

ASTM D955

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