In mold overlay process for gel coated glass fiber reinforced laminates
AssigneeCoplas, Inc.
InventorWalter J. Maker
Life of this patent
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Abstract
A method of protecting glass fiber reinforced products from the effects of weathering by applying a polymeric resin overlay to the product in mold. Conventional waxing of molds is eliminated. The mold is prepared by applying a layer of a lecithin solution, and the overlay is applied thereafter. A layer of gel coat is then applied to the overlay, the gel coat is reinforced and the overlay-protected product is demolded. The invention also includes a method for making an overlay-protected synthetic marble product.
Claims15
A method of protecting gel coat layer of a glass fiber reinforced product against the effects of weathering, comprising the steps of:
- dissolving a preselected polymeric resin in a solvent to form an overlay material;
- applying the overlay material to a mold surface;
- applying a gel coat layer to the overlay material;
- applying a glass fiber and resin layer to the gel coat layer to reinforce it;
- and
- demolding the glass fiber reinforced product.
Dependencies are inferred from the claim text.