4-20 



MATERIALS AND MOLDING METHODS 



Fig. 4-22, capable of simultaneously depositing chopped strand fiberglass and catalyzed 

 resin on the mold (11, 13, 19). 



In contact molding, fiberglass hulls can be rapidly built up over hull forms by use of 

 this spray gun. This process is presently being used in the production of some boat hulls, 

 Fig. 4-23. 



Fig. 4-22. Spray gun 

 (Courtesy Rand Development Company) 



Fig. 4-21. Molding of 15' hull by 



matched die molding 



(Courtesy Molded Fiberglass Poat Company) 



Fig. 4-23. Spray gun depositing chopped 

 fibers and resin on hull mold (Courtesy 

 Larsen Boat Company) 



