Spotting UV damage early — sprayhoods, lines and gelcoat
UV degradation is the slowest, most reliable form of damage a Costa Blanca yacht takes. It doesn't have weather events, it doesn't make a noise, and by the time you notice it, the repair has usually moved from "small" to "annoying."
A few quick checks each visit catch it early.
Sprayhoods and biminis
The first place UV shows up is on the stitching, not the fabric.
- Run a fingernail along seams. If the thread crumbles or comes away in dust, it's UV-rotted. The fabric may still look fine but the seam is gone.
- Look at the leeward side of zips. The pull tabs go brittle first; the teeth follow.
- Check window panels for clouding, yellowing and tiny stress cracks at the corners.
A re-stitch by a local sailmaker catches a tired hood; left another season, the fabric tears and you're buying a whole new hood.
Standing rigging tape and covers
Spreader boot tape, anti-chafe wraps and shroud covers all sun-rot. They're cheap to replace and the tape failing is a signal that things underneath haven't been touched in years either. Replace it; it gives you an excuse to look at what's underneath.
Running rigging and dock lines
Synthetic line on the Costa Blanca has a noticeably shorter life than the same line in northern Europe. The signs:
- Outer cover going furry — UV breaking down the fibres
- Hard, glossy patches where lines have baked in the sun against fittings
- Stiffness — the line doesn't drape, it holds its shape
If a halyard or sheet has done four or five Costa Blanca summers and lives outside, it's probably done. Test by flexing — a good line stays supple; a UV-damaged one feels papery.
Dock lines are even shorter-lived because they live in salt and sun without ever drying out properly. Two summers is a reasonable life.
Gelcoat
Costa Blanca sun dulls gelcoat fast on horizontal surfaces — deck, coachroof, side decks. The progression is:
- Dullness — polishing brings shine back, easy
- Chalking — light surface oxidation, comes off with cutting compound
- Pitting and crazing — deeper, needs proper machine polishing or eventually re-gelcoat
Catch a boat at stage 1 once a year and stage 2 never arrives. Skip it for three or four years and you're looking at a full machine polish or worse.
Teak
Teak goes silver-grey in UV, which is fine if you want it that way. The damage is what happens to the caulking between planks — it shrinks, cracks, and lifts. Once caulking lifts, water gets under the teak and into the deck core.
Look at the caulking edges. If you can see a gap or it's curling, that's the job to do before any cosmetic work on the teak itself.
The pattern
UV damage is cumulative and quiet. Every visit, two minutes of looking at the things UV kills — seams, zips, line covers, gelcoat shine, caulking edges — catches it at the stage when it's a cheap fix rather than a project.
A photo record of these areas over time is the easiest way to track it; that's part of why we send photo reports after every visit.
If you'd like that kind of regular check on your boat, get in touch.