RTV 9811

Momentive RTV9811 is a metal soap based, light beige, pourable paste curing agent for two-component RTV silicone rubber compounds. It is specially designed for thorough cure in thick sections and is used with RTV11, RTV21, RTV31, RTV41, RTV60, RTV88, RTV511, RTV560 and RTV577.

Features

• 10:1 mixing ratio, suitable for automatic dispensing or hand operations
• Good colour contrast with RTV base compounds gives visual evidence of complete mixing
• Good cure in deep sections eliminates the need for multiple pours and long cure times
• Contains an inhibitor to prevent copper corrosion, permitting use with sensitive metals

Typical Properties

• Colour light beige; viscosity 25,000 cP; specific gravity 1.50
• Typical level used 5–10% by weight of the RTV base compound (10% for general use); moderate cure speed

Use

• Use a mixing container 4–5 times the mix volume; mix base and curing agent thoroughly, scraping the sides and bottom of the container; avoid excessive mixer speeds
• Remove entrapped air under a vacuum of at least 29 inches of mercury; in complex potting assemblies a deairing step after pouring may be needed
• Causes eye irritation and may cause skin irritation; avoid contact with skin and eyes