Filling screw holes for strength

> 10 years ago
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Bundeenabuoy
Bundeenabuoy
NSW
1239 posts
NSW, 1239 posts
25 Apr 2014 5:02pm
I am now about to replace my winches and the screw holes don't line up.
Would you please tell me what material I fill the old holes with to gain maximum grip?
I may have to drill into part filler and part boat.
Ramona
Ramona
NSW
7757 posts
NSW, 7757 posts
25 Apr 2014 6:43pm
Epoxy filler. Either buy it ready to go or make your own from epoxy resin and various fillers. I use micro balloons and brass or stainless filings or even clean sand. Mix and add fillers till you end up with a tooth paste consistency.
Bundeenabuoy
Bundeenabuoy
NSW
1239 posts
NSW, 1239 posts
25 Apr 2014 7:54pm
Romana the sand sounds like a great idea. I will buy a carbide tipped drill if necessary.
I tried to buy epoxy filler at Bunnings Kirrawee yesterday. They said they didn't sell it. But I will try at Caringbah.
LooseChange
LooseChange
NSW
2140 posts
NSW, 2140 posts
25 Apr 2014 8:05pm
Selleys "Knead it" is epoxy putty, just buy the approriate one for the job.
SandS
SandS
VIC
5904 posts
VIC, 5904 posts
25 Apr 2014 10:04pm






+ 1 for epoxy for that job ..............and that kneadit gear is really good stuff!!!!!
nswsailor
nswsailor
NSW
1458 posts
NSW, 1458 posts
26 Apr 2014 12:43am
Don't forget to get some colouring so you can match the colour of your gel coat!
Ramona
Ramona
NSW
7757 posts
NSW, 7757 posts
26 Apr 2014 8:58am
Another choice is either Devcon plastic metal or JB Weld. These are just metal filled epoxy in two parts like Araldite. Use 100mph tape under the holes to seal off the area, mix up the glue and fill the holes. Apply a little heat to make the glue a little runny and then let it set 24 hours then it can be drilled, tapped etc. Both are dark grey in colour. You could also just add a filler to 24 hour Araldite if that's more convenient.

Always make sure the area is clean and dry when using epoxy.
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