Abstract
A high-green-strength silicone rubber has been developed which can be processed on equipment designed to handle organic rubber in the uncured state. This paper describes the processing of silicone rubber for curved radiator hose where green strength is needed. A correlation between green strength, room temperature Mooney viscosity, and plasticity has been established and found to be strict enough to allow green strength to be estimated from room temperature Mooney viscosity and plasticity data.
Good shelf life along with excellent processing properties on a 2-roll mill are characteristic of this silicone rubber stock. Data will be presented covering handling properties, immersion tests, typical physical and thermal properties. Currently, this silicone rubber is being used in hose applications and could be considered for others where green strength is a requirement.
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