Thermoset Spacer (TSS) Technology – New Generations of Dual Seal IG Systems

Gerhard Reichert

Thermoset sealants such as polysulphide and silicone have long been heralded for their high performance attributes in the insulating glass (IG) industry. Meanwhile IG spacers have typically had a thermoplastic component incorporated, such as polyisobutylene or butyl, for dual seal moisture vapor and gas barrier properties.

New generations of thermoset spacer technology offer a unique reversal of the common dual seal IG system, with thermoset technology as part of the spacer, and thermoplastic barrier sealants in the cavity behind.

Insulating glass performance improvements can be realized in areas such as: enhanced fl exibility and durability of IG units; improved memory of the spacer/sealant system; overall window U-value performance; condensation resistance; argon or other inert gas retention; acoustic performance; automated manufacturing efficiencies; and quality control benefits.

New and unfamiliar spacer technologies and designs that capitalize on thermoset advantages will be
discussed here with.

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