I am in the process of replacing the screw snaps on my boat what sealant should be used in the holes while screwing the new ones in?
I am in the process of replacing the screw snaps on my boat what sealant should be used in the holes while screwing the new ones in?
Silicone has always worked fine for me.
1971 Donzi 18' 2+3
1985 Eliminator 23' Daytona Offshore - Kevlar hull
1988 23' Donzi CC F-23 with 250HP EFI Mercury OB
1989 28' Team Warlock Offshore - single 548CID/600HP
1990 23' Warlock Offshore - single 525HP
Bill from Denison, TX - Lake Texoma
Just be careful when using a sealant on them. They will strip out the hole real easy.
A winner is just a loser that got up and did it one more time.
1959 Biesemeyer - 4pt Hydro Drag - 2013 ACBS Winner - Best Race Boat
1967 Nova Marine - SuperNova24 - ACBS Winner - 2012 Best Race Boat - 2016 Peoples Choice & Best Non Wood
1972 John Allmand - Nova 19
1972 John Allmand - Nova19 (#2)
1982 PolarKraft -Jonboat - Crab Killer
Beyond sealant to Mark's point, I know some shops that actually drill and tap the fiberglass, rather than using a standard screw.
"I don't have time to get into it, but he went through a lot." -Pulp Fiction
I have seen two different length screws on snaps with a slight difference in how much thread was on the screws. Since you will be replacing the snaps, you will probably not need to countersink the gelcoat but it is a good procedure any time self tapping screws are going into fiberglass to prevent the surface gelcoat from fracturing.
1971 Donzi 18' 2+3
1985 Eliminator 23' Daytona Offshore - Kevlar hull
1988 23' Donzi CC F-23 with 250HP EFI Mercury OB
1989 28' Team Warlock Offshore - single 548CID/600HP
1990 23' Warlock Offshore - single 525HP
Bill from Denison, TX - Lake Texoma
Thanks for all the response. I am just replacing old with new but did chamfer all of the holes with the tip of a philips bit in my drill. I also bought 1/2" long screw to replace the 3/8" ones so I make sure they get a little more bite.
Cant do it everywhere but where possible I use machinist screws and a nut. For sealant used the above water line version of the 5200 sealant think its 4200
Scars are tatoo's of the fearless
I fight with the snaps around my cockpit when I put the cover on or take it off. Always have to push or pull from different directions and I even ripped the cover. I assumed it's because they're no longer round. Same thing holds true for the back seat cushions. Don't you need to replace the snaps on the cover and/or cushions also?
If you look at snaps on eBay, you'll find a two ended tool for removing covers etc.
It simply separates the snap parts and removes any stress from the cover.
http://www.ebay.com/itm/Top-Snapper-...hXmkIM&vxp=mtr
George Carter
Central Florida
gcarter763@aol.com
http://kineticocentralfl.com/
“If you have to argue your science by using fraud, your science is not valid"
Professor Ian Plimer, Adilaide and Melbourne Universities
Same snaps on seat cushions and cover for past 19 yrs. without issue. Never lubed snaps although 18C has been stored indoors for those 19 yrs.
1971 Donzi 18' 2+3
1985 Eliminator 23' Daytona Offshore - Kevlar hull
1988 23' Donzi CC F-23 with 250HP EFI Mercury OB
1989 28' Team Warlock Offshore - single 548CID/600HP
1990 23' Warlock Offshore - single 525HP
Bill from Denison, TX - Lake Texoma
The environment out here is a killer on everything , snaps included. Nothing tries your patience like a few snaps on the cover that are virtually seized in place.
Your marine supply store might carry small tubes of snap and zipper lube . Failing that even spray lube/oil will work but vaseline is the old go to .
And it's true , the difference afterwards IS like night and day .
Just because something's old doesn't mean you throw it away !
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