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Tenerife
Fiberglass and osmosis repair in Tenerife
Fiberglass and osmosis repair specialists in Tenerife: impact damage, cracks, gelcoat, structural reinforcement and epoxy hull treatments.
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The most common fiberglass damage
Typical jobs are repairs after knocks against pontoons or rocks, gelcoat crazing (the classic spider cracks), reinforcing areas that flex and repairing decks with a wet core.
Osmosis shows up as blisters on the underwater hull when water gets through the gelcoat. It won't sink a boat overnight, but it should be treated: the gelcoat is peeled, the laminate is dried out and an epoxy system is applied.
How to choose a fiberglass yard
The laminator's experience shows in the finish: the repair shouldn't be visible and the gelcoat colour should match. Ask for photos of previous work and which resins they use (polyester, vinylester or epoxy) and why.
For osmosis treatment, ask for moisture readings before and after: it proves the hull was properly dried before it was sealed.
Fiberglass and osmosis repair in Tenerife: frequently asked questions
How much does a fiberglass repair cost?
A small gelcoat ding can cost a few hundred euros, while a structural repair with new laminate can reach several thousand. Sending photos to the yard is the best way to get a first estimate.
How do I know if my boat has osmosis?
Look for blisters on the underwater hull when the boat is lifted; when punctured they release an acidic, vinegar-smelling liquid. A surveyor or fiberglass yard can measure laminate moisture to confirm it.
How long does osmosis treatment take?
The work itself takes days, but drying the hull can need weeks or months out of the water. That is why it is usually scheduled in winter.
Can fiberglass be repaired with the boat in the water?
Only repairs above the waterline and in good weather. Anything on the underwater hull needs a haul-out.
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