| 摘要 |
PURPOSE:To obtain the titled formed part free from water leakage by a method wherein glass roving and unsaturated polyester resin are sprayed by the spray up method on a mold, an airtight surface layer is sprayed on the surface to restrain air permeating and compress said laminated part. CONSTITUTION:The glass roving is sprayed up by a sprayup machine on a mold together with unsaturated polyester resin as it is being cut. Then, an airtight surface layer (such as unsaturated resin) is sprayed on the laminated surface. This laminated part is put into a pressure tank, if necessary heated and compressed to compress and break voids then hardened to obtain the desired formed part. EFFECT:Application of defoam rolling is not needed. |
