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Home Advice Advice 4: Silicones, Sikaflex
Advice 4: Silicones, Sikaflex

Never use sikaflex on a joint that is exposed to direct contact with the air or sunlight. It will break down and weather fast, turning yellow and looking very unattractive should you choose to fit windows or hatches  yourself etc. Use a good quality marine silicone, preferably with an anti-mould agent added and a 5-10 year guarantee.