Coat it over paint?

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Jmar
Posts: 48
Joined: 24 Mar 2016, 11:14
Location: Chesterfield, Michigan

Coat it over paint?

Post by Jmar » 17 Jul 2016, 13:19

The PO had painted my tin inside and out. Now it is leaking at seams and rivets more than I am comfortable with. Can I use Gluvit or Coat It directly over the paint or will I need to sand down to bare aluminum? The interior is covered with the flooring I installed and would not be visible. I can easily remove flooring to get to interior.
14ft 1960's Foremost w/ 1979 9.9 Evinrude

http://forum.tinboats.net/viewtopic.php?t=40332

RazorBaits
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DaleH
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Posts: 2207
Joined: 12 Dec 2014, 14:32
Location: Eastern Mass

Coat it over paint?

Post by DaleH » 17 Jul 2016, 17:50

If paint finish is OK, you can apply directly. Nkw I haven't used Coat It, but if it is truly like Steel-Flex, it will be a LOT thicker than Gluvit is and it may not 'weep' or penetrate as well ...

Either MUST be hidden from sun or over-coated/painted to protect it from UV damage.
#1) 1st tin rebuild, 18' Lund http://forum.tinboats.net/viewtopic.php?f=21&t=36583
#2) 25' Parker refurb from EMPTY hull http://www.classicparker.com/phpBB3/vie ... p?f=15&t=6
#3) 16' V-tin rebuild http://forum.tinboats.net/viewtopic.php?f=21&t=36465
#4 Procraft SV14
#5) 16' Starcraft entirely NEW Transom Skins http://forum.tinboats.net/viewtopic.php?f=3&t=37548

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stinkfoot
Posts: 399
Joined: 05 Feb 2016, 03:42
Location: Langley, BC

Coat it over paint?

Post by stinkfoot » 17 Jul 2016, 23:23

bloody leg.jpg
level.jpg
shiny 3.jpg
epoxy on.jpg
I recently did my 16 foot Fisher Marine jon with Coat-it. The instructions specify sanding or otherwise getting down to bare metal(I used a cupped wire brush on a mini grinder.) Then cleaning with Naval Jelly or similar(phosphoric acid) and then applying the Coat-it (after rinsing off the Naval Jelly). I did all this and I couldn't be happier. Boat is watertight. Finish looks like shiny dirty dishwater so it isn't attractive but it is tough. It filled multiple leaky rivets and welds. It is also paintable if you wish but as all mine is below waterline I didn't bother. An 8lb can covered approx 90 sq feet. Don't drop the grinder and wire brush your leg like I did when my thumb got tired!

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DaleH
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Posts: 2207
Joined: 12 Dec 2014, 14:32
Location: Eastern Mass

Coat it over paint?

Post by DaleH » 17 Jul 2016, 23:29

Ouch!
#1) 1st tin rebuild, 18' Lund http://forum.tinboats.net/viewtopic.php?f=21&t=36583
#2) 25' Parker refurb from EMPTY hull http://www.classicparker.com/phpBB3/vie ... p?f=15&t=6
#3) 16' V-tin rebuild http://forum.tinboats.net/viewtopic.php?f=21&t=36465
#4 Procraft SV14
#5) 16' Starcraft entirely NEW Transom Skins http://forum.tinboats.net/viewtopic.php?f=3&t=37548

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