View Single Post
  #161  
Old 13th May 2020, 16:26
Mister Towed's Avatar
Mister Towed Mister Towed is offline
Senior Member
 
Join Date: Jul 2011
Posts: 5,214
Mister Towed is on a distinguished road
Default

Hi Slarti, gel-coat makes fibreglass waterproof - without it water can get through the paint and discolour the surface beneath.

Assuming it's a female mould, I'd give the inside a dozen coats of release wax, each buffed to a shine and left for an hour before the next, then a coat of catalysed gel-coat, followed by four or five layers of CSM once it's tacky to the touch. That should give you something that's heavy duty and weatherproof.

Good luck and welcome back.
Reply With Quote