FINAL FORMS I
Final forms I features a tapered, grooved perforated fin for bonding of drywall
compound. Post-applied to a gypsum board surface, they offer concealed fastening
of protective and decorative aluminum trim edging.
Install gypsum board-thickness as specified and in accordance with Final Forms I part number.
Lay out drywall surface with chalk lines.
Cut out gypsum board with router.
Cut Final Forms I to proper length. Corners should be mitered. Butt joints should be tight and
fastened within 3" of ends.
Screw profile through round holes 8" O.C. maximum with standard bugle head drywall screws.
Screws should tap studs where possible. Use screws 5/8" minimum longer than thickness of
GPDW. Heavy Duty staples may also be used. Check for protrusion of screw heads by
drawing a finishing knife across the entire surface length
Tape with fiberglass tape and bed with standard drywall joint procedures. Take care to assure
that tape does not overlap the profile shoulder.
After proper curing of initial coat (usually 24 hours), apply final skim coat with an 8" wide
flexible metal trowel. Run one edge of the trowel along the shoulder of the profile and the other
edge along the gypsum board surface to obtain a flat appearance. Three coats of
drywall mud is generally recommended.
Clean excess compound from exposed portion of trim. Finish sand and "feather" joint with
#220 grit sandpaper.
Apply paint or wall covering according to manufacturers' instructions. Trim is coated with a
chemical conversion coating for bonding of joint compound and paint.
CAUTION: Wipe metal with dry cloth or thinner to remove dust, dirt or oils picked up in transit,
handling or installation prior to taping, mudding and painting.
Final Forms I: Installation Guide