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  • CliveW2 commented on audreyobscura's instructable Repairing Fiberglass7 months ago
    Repairing Fiberglass

    If you want a properly strong and flexible finish, try this: since glass fibre mat is made up individual fibres thinner than human hair which are bonded together to create strands, the correct method is to stipple the mat with resin & a brush until the strands are broken down into the fibres and each fibre is consequently surrounded by resin. The strength of GRP comes from the fibres not the resin, and so long as the fibres are surrounded by resin you will achieve the lay-up. Consolidating the area with a metal roller will make the whole thing far stronger and also bring excess resin to the surface. (Don't forget to clean equipment in acetone for next time!)

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