Hi Pieter. Not sure if you mean you removed the acrylic
lens and tried to reuse the rubber seal around it? Or if your hatch
has a rubber compressible seal where you pull the hatch closed? We have Goiot hatches on our monohull
and recently had a leak around the base of the hatch when rain was driven sideways by the wind
. The water would get into to the plastic trim on the underside of the deck and then run along the edge and drip on the bunk. I ended up removing the hatch from the deck and it came up quite easily. Rebedded underneath with butyl rubber which took quite some time. Halfway through I wished I had used a caulk instead. If it's the acrylic lens you are talking about I suggest removing all the old seal and resealing with a new sealant
. My Goiot lens are acrylic and I assume yours are too. To quote GordMay: "Most hatches have anodized aluminum
frames, with Acrylic (Plexiglass™) or Polycarbonate (Lexan™) glazing (not glass), for which a mediun or hi-modulus neutral curing silicone sealant
, such as Dow Corning 795, (NOT acetoxy* cure) is usually recommended.
You should probably seek specific recommendations (performance & compatibility) from your glazing supplier.
* If acetal cure (oxime) type silicone base sealant is used, the emitted gas causes corrosion
& cracking (in plastics).
If your replacement glazing is actually glass, I'd recomment either a polysufide or apolyurethane adhesive
sealant." The original thread is at: Replacing Hatch Glass
Good luck with the repair and Happy New Year to you as well! Cheers, Kim