suggestions for safe waterproof paint...

[arowfan]

Hey everyone, I'm making a plywood top with viewing window over my pond and wanted to paint the inside of the top with a waterproof paint for the moisture...I'm gonna pick up the paint this afternoon after work...any suggestions guys?
Thanks in advance
John

 

[arowfan]

is something like this ok?

http://www.homedepot.com/Paint/h_d1...splay?langId=-1&storeId=10051&catalogId=10053

like a swimming pool paint?

 

[pjsmetana]

I don't know of any safe, waterproof paint for wood. If you find one, I'm interested in hearing about it.

 

[arowfan]

or can I use what everyone is using to waterproof their plywood tanks...what is generally used for that, a type of epoxy paint? and where to pick it up in nj if possible...

any help guys???

 

[arowfan]

anyone????

 

[pjsmetana]

or can I use what everyone is using to waterproof their plywood tanks...what is generally used for that, a type of epoxy paint? and where to pick it up in nj if possible...

any help guys???

They aren't using paint on the plywood tanks... they line them with the pond plastic/rubber liner stuff and seal them against the glass with silicon.

If you really 'must' paint the inside of something wood, then I'd suggest covering it with fiberglass, then using gel coat... which is sort of a paint. Both of which you can find at the boating supply stores.

 

[Matt724]

i'm not sure what the other guy is talking about, but there is krylon fusion which is a latex based paint that you can use on plumbing and backgrounds and stuff in the water, but if you're waterproofing a tank, there is drylock (controversial here on MFK), liquid pondliner (goes by various names and brands), and epoxy and resin coatings you can use. The cheapest way is usually pondliner or drylock, but it's your choice. Just search on MFK's DIY forum and you'll find a bunch of helpful advice of those much wiser than me.

 

[pjsmetana]

i'm not sure what the other guy is talking about, but there is krylon fusion which is a latex based paint that you can use on plumbing and backgrounds and stuff in the water.

Yeah, but Krylon Fusion a paint designed for plastic, not wood. It works on plastic because it bonds on the molecular level. It does not work so well on wood, and certainly not well enough on wood to seal it from moisture... although it does state the paint will stick to wood. Also, Krylon Fusion is not a Latex Paint. Holding a can in my hand right now, it can read that it says Lead.

As far as Drylock goes, theres been far too many complaints on here about it to trust it... thus leaving really only 1 reliable option: Pond Liner. Which I've already suggested. That stuff Guaranteed to last atleast 20 years too I might add...

 

[Matt724]

Yeah, but Krylon Fusion a paint designed for plastic, not wood. It works on plastic because it bonds on the molecular level. It does not work so well on wood, and certainly not well enough on wood to seal it from moisture... although it does state the paint will stick to wood. Also, Krylon Fusion is not a Latex Paint. Holding a can in my hand right now, it can read that it says Lead.

As far as Drylock goes, theres been far too many complaints on here about it to trust it... thus leaving really only 1 reliable option: Pond Liner. Which I've already suggested. That stuff Guaranteed to last atleast 20 years too I might add...

you're right, i apologize, krylon is not a latex paint, i was mixing it up with the liquid rubber cause that can be sprayed on too as shown in the video below. I've heard a lot of people complain that drylock is too risky, etc... but in the year and a half that i've been on this site (every day at least 2x a day) i've never seen a drylock tank that has failed its seal unless he or shee only put on a coat or two when you should be putting on multiple. Drylock has also come out with drylock extreme, which is latex based: http://www.ugl.com/drylokMasonry/masonryWaterproofer/latex.php

I don't see anything wrong with any 3 of these options, but if you're using it on wood to seal a tank, my first suggestion would be to go straight to the liquid rubber but since that does get pricey, drylock extreme is a sound choice.

Goodluck

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[arowfan]

thanks for the help guys! but its not to seal the pond...the pond is set already...

its for the pond top that I'm making out of plywood, cutting out a box to plop a window in...I might paint the material the window is made of with fusion...and was thinking of using this fiberglass board found at home depot its 8x4 which is the same size as the plywood, glue it to the underside of that, then seal the edges around the window with silicone!

YES!!! I think we have a winning combo!!! what do you think?!?!?!