The perfect solution to a corrosive environment, Chem-Pruf® FRP wall
louvers provide years of low-maintenance, corrosion-resistant service. All
parts.jambs, headers, sills, slats and vanes.are manufactured from gel- coated,
fiberglass-reinforced polymers (FRP). Resins are tailored for the exact conditions where the louvers will be installed.
Louvers are of a flush construction, with a gelcoated outer surface of approximately 25 mills (equal
to 50-60 coats of paint). The gelcoat is molded into the laminate and utilizes the same resin chemistry
used
in the glass resin substrate. Gelcoat serves as the primary barrier against corrosive attack and can be formulated in a wide variety
of colors.
In the fabrication process, following the gelcoating, an envelope
consisting of 2 ounces of continuous-strand fiberglass is infused
with resin to form a completely solid, corrosion-resistant part.
Bosses for securing and positioning the slats or vanes are integrally molded at one time as the jambs are formed.
All reinforcing resins contain a halogenated additive or coreactants plus antimony trioxide. Resins yield a
flame spread of 25 or less per ASTM E-84 and are self-extinguishing per ASTM D-635. The use of ATH (hydrated aluminum powder) to lower smoke propagation and depress ignitability is
frequently used.
