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Refinishing questions
Just to be technically accurate - Simtec or Prestec are not gel
coats... they are polyester topcoats. Gel coat is formulated as an in- mold coating, but can be used as a post-mold coating with the addition of a "air-dry" additive. Linear polyurethane (i.e., two-part mixture) is a coating formulated for finished spray application. Simtec is essentially a polyester-based finish coating designed for application similar to a polyurethane paint, except using polyester chemistry. So we have: Gel Coat - Designed as an in-mold coating, but can be modified for application as a spray finish. Requires significant finish sanding and polishing. Topcoats - Designed as a finish coating - Can be urethane or polyester chemistry. Depending on quality of spray application, finishing can range from no sanding/polishing to minimal post-finishing required. Hope this helps. Bob |
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