 We
can custom build and/or repair any size IG glass unit you might
need using today's latest technology---Edgetech's SUPER SPACER.
Previously,
conventional wisdom in an entirely metal-spacer world was that
IG assembly was most easily carried out, with the primary gas/moisture
barrier-seal on the inside and the secondary, structual seal on
the outside.
Years of experience have now shown, though, that the primary barrier
seal, which is polyisobutylene (PIB) laminated in a thin bead
along each side of the metal spacer assembly, is quite vulnerable
to skipping or loss of adhesion. Cold when applied, wet-out against
the glass is by pressure only, a practice that has also demonstrated
difficulty in achieving a consistent bond. Such inconsistency
and skipping serve to make dual-seal metal spacer IG units quite
vulnerable to premature leaking and/or the negative pressure impacts
of differentially premeable structural sealants.
Neither of
these are a concern with Super Spacer, though, a spacer
and edge-seal system, whose reverse dual-seal design places its
structual sealant on the inside, dry side of the IG cavity---and
its hot melt butyl gas/moisture barrier seal on the outside of
the unit. Structurally, Super Spacer's soundness is achieved
via a bow-and-bend friendly, flexible-foam construction, aided
and abetted by a structual, acrylic adhesive, pre-applied to each
side of the spacer itself.
Meanwhile
to ensure good wet out against the glass, butyl sealant is heated
to high temperatures and then gunned into the cavity on the outside
of the spacer, a much better location to achieve full butyl continuty.
The latter approach is unique to Super Spacer, and just
as uniquely it allows for much-valued dual-use from its barrier
seal.
First, keeping
moisture out of the IG cavity. Second, though, is something no
other edge-seal system can do and that's protect the IG units
structural sealing system from the elements---and the lifespan-degrading
effects this can have.
Additional, Super Spacer's reverse-dual-seal design is the one approach
that can stymie negative-pressure build-up resulting from differential
permeability of the structural sealant. This is because the outside
sealant, through which air must permeate, is butyl, the very one
with minimal permeability differences and extremely low permeation
to begin with.
When all
its thermal and condensation protection properties are taken into
account, it's not hard to see how Super Spacer's flexible-foam
construction and reverse dual-seal design have combined to make
the IG industry's warmest warm-edge spacer, its the # 1 "kid on
the block". |
