NuSil R-2550 - NuSil Technology - Silicone Elastomer

Identification & Functionality

Chemical Family: Silicones
Product Type: Coating
CAS No.: 68909-20-6
Technologies: Ready-to-Use Products
Product Families: Ready-to-Use Products — Paints & Coatings
Other Paints & Coatings

Features & Benefits

Ready-to-Use Product Features: Electrically Conductive,
Heat Resistance,
Pourable,
Wide Temperature Operating Range
Product Highlights: Two-part, pourable, translucent RTV silicone

Based on a dimethyl diphenyl silicone copolymer with a broad temperature range
100: 0.5 Mix Ratio (Base: Curing Agent)

Applications & Uses

Markets: Automotive & Transportation
Applications: Automotive & Transportation — Coatings & Finishes
Aerospace Coatings
Automotive & Transportation — Transportation
Aerospace & Aviation
Application Area: Aircraft
Applications: As a heat shielding material for potting, sealing and bonding applications

For ablative coatings in aerospace applications that require a material that pours

For applications in extreme temperatures
For applications requiring an operating temperature range of -115 to 260°C (-178 to 500°F)
Instructions for Use: Mixing

Thoroughly mix just prior to use by adding 0.5% by weight catalyst to base. Work Time may be extended by using as low as 0.1% curing agent. Caution: R-2550 catalyst may cause skin irritation. In case of eye contact, irrigate with water immediately and seek medical attention. (Standard catalyst is dibutyl tin dilaurate.)

Vacuum Deaeration

Remove air entrapped during mixing by common vacuum deaeration procedure, observing all applicable safety precautions. Slowly apply vacuum, up to 28 inches Hg, to a container rated for use and of volume at least four times that of material being deaerated. Hold vacuum until presence of air is no longer evident.

Properties

	Value	Units	Test Method / Conditions
Cure System	Alkoxy	—	—
Cure at RTV	7.0	days	—

Packaging & Availability

NuSil™ R-2550