Release air bubbles and smooth seams, using rollers.
Spray chopped fiberglass, resins, and catalysts onto prepared molds or dies using pneumatic spray guns with chopper attachments.
Select precut fiberglass mats, cloth, and wood-bracing materials as required by projects being assembled.
Pat or press layers of saturated mat or cloth into place on molds, using brushes or hands, and smooth out wrinkles and air bubbles with hands or squeegees.
Mix catalysts into resins, and saturate cloth and mats with mixtures, using brushes.
Bond wood reinforcing strips to decks and cabin structures of watercraft, using resin-saturated fiberglass.
Check completed products for conformance to specifications and for defects by measuring with rulers or micrometers, by checking them visually, or by tapping them to detect bubbles or dead spots.
Apply layers of plastic resin to mold surfaces prior to placement of fiberglass mats, repeating layers until products have the desired thicknesses and plastics have jelled.
Mask off mold areas not to be laminated, using cellophane, wax paper, masking tape, or special sprays containing mold-release substances.
Apply lacquers and waxes to mold surfaces to facilitate assembly and removal of laminated parts.