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Secondary Sealants
PIB provides the primary sealant in insulated glass windows giving the unit
excellent MVTR. The role of the secondary sealant is to provide the mechanical
strength to the unit. ADCO offers various options for the secondary edge sealants.
Polyurethane-based sealants provide high stability and elasticity along with good water
vapor permeability ratings. Polysulphide-based sealants also provide excellent chemical
resistance, high stability and elasticity along with good gas permeability ratings.
Silicone sealants are particularly suitable for sealing insulating glass units that have
exposed edge seals, such as units for greenhouses and conservatories, since they exhibit
the best UV resistance along with strength. Whichever secondary sealant you need, ADCO has
a solution designed specifically for your process.
ADCO's secondary sealtant technology comes from our European division,
Kömmerling, a company with over 106 years of experience in the sealant industry.
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