Blister repair. by don casey. revised by boatus editors in april 2012. fiberglass blisters occur because water passes through the gelcoat. water soluble chemicals inside the laminate exert an osmotic pull on water outside, and some water molecules find a way through the gelcoat.. A guide to repair and fixing fiberglass blisters on boats. this is a common problem among sailboat hulls produced in the mid-seventies. narrated by a camper nicholson 31 owner completing this. 1 the problem of gelcoat blisters in fiberglass boats a 1990 practical sailor magazine survey, suggested that one in four boats can be ex.
We offer complete boat blister repair services. damaged boat ready for boat blister repairs. osmosis, the main cause of fiberglass boat blisters, can destroy a yacht’s fiberglass laminate. osmosis allows a chemical reaction between water and unreacted substances remaining in the manufactured hull.. Take a deep breath: blisters are a symptom, not a disease. it is estimated that one in four fiberglass boats develops hull blisters. most will never be more than a cosmetic concern, particularly if they're treated rather than ignored. fiberglass hulls blister because the shiny exterior, the gelcoat layer, is not 100-percent impermeable to water.. Fiberglass boat repair blistering and damage to fiberglass boats . our technicians at norton’s marine service center are very experienced and skilled in fiberglass boat repair. in fact, some have referred to our fiberglass repair technicians as “artists.”.
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