| We prefinish our door
skins first on our 540-foot line, then build the door to your specification. Step 1 Pre-sanded door skin is re-sanded with two 180 grit brushes.
Step 2 Skin passes through a
double-panel cleaner, which removes all dust from both sides of door skin.
Step 3 Ti-coat is applied by a
single roller coater. This is a wash coat application that raises the grain, preparing the
surface to receive uniform stain coats. Door skin passes through 60-foot automatic
heat-controlled drying ovens, consisting of hot air and ultraviolet heat lamp.
Step 4 Door skin receives two
coats of stain, one direct roller coater and one reverse roller coater. Stains are
combination of dye and pigmented. Door skin passes through 60-foot automatic
heat-controlled drying ovens, consisting of hot air and ultraviolet heat lamps.
Step 5 Door skin passes
through two sanding heads, first pass, 180 grit, second pass, 120 grit. This is a
de-nibbing process to sand raised grain from sealer and stain. Door skin passes through
100-foot automatic heat-controlled drying ovens, consisting of hot air and ultraviolet
heat lamps.
Step 6 Door skin passes
through two direct roller coaters and one reverse roller coater, applying three coats of a
clear acrylic sealer to lock in the stain color. Door skin passes through 100-foot
automatic heat-controlled drying ovens, consisting of hot air and ultraviolet heat lamps.
Step 7 Door skin passes
through three sanding heads-180 grit, 180 grit and 220 grit – and a fourth head,
which is panel cleaner. Door skin passes through 100-foot automatic heat-controlled drying
ovens, consisting of hot air and ultraviolet heat lamps.
Step 8 Door skin passes
through two direct roller coaters, which applies two coats of polyurethane ultraviolet top
coat, which is cross linked chemically to provide an extremely hard finish.
Step 9 Door skin passes
through four curing units with eight ultraviolet curing lamps. |
