Adds to PIB Sealant Family
The second product
in TruSeal Technologies' family of hot-melt butyl and polyisobutylene
(PIB) insulating glass (IG) sealants is now available. The product
family, called EdgeTherm®, features high-performance, gun-grade
IG sealants for manufacturing flexibility, according to the company.
PIB-H1, a high viscosity, high strength, 100-percent solids sealant
is the most recent addition to the product line. It is based on
a PIB polymer formulated to impact reinforcement, resist degradation
from ultraviolet light and provide low moisture permeability. The
company says PIB-H1 resists shearing in large, heavy lites of glass
and retains flexibility through a wide temperature range to compensate
for an IG unit's thermal movement.
PIB-H1 serves as the IG unit's primary seal, providing the main
moisture vapor seal between the glass and metal spacer. A secondary
seal for structural strength must also be used.