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How to seal particle board....varnish?
Posted:
Wed Oct 18, 2006 8:33 pmby kayakrguy
Hi folks,
We are installing a laminate countertop in the T. We bought a damaged one at Lowes and are cutting it to size. It is formica on particle board.
What would you recommend to seal the sides and bottom of the particle board agains moisture, spills etc? We have some varnish we could use...???
Suggestions welcome!
Jiom
Posted:
Wed Oct 18, 2006 8:42 pmby Gerdo
I have the same type of countertop. I just slopped on a few coates of house paint. I think you could use almost anything to seal it. The more weatherresistant you can make it the better. Particalboard will act like a sponge and breakdown.
Posted:
Wed Oct 18, 2006 8:59 pmby halfdome, Danny
The approved method would be a white or brown backer sheet or scrap plam but anything would be better than raw particle board. If the raw part is inside cabinets it will have some protection. 
Danny
Posted:
Thu Oct 19, 2006 5:13 pmby kayakrguy
Thanks guys, I thought the same thing...pboard is like a sponge and the galley is likely to be wet....so...!
Jim
sealing
Posted:
Sun Oct 22, 2006 7:47 amby Lesbest
A good marine paint with an additive by the Flood Co. called Petrinol would be the perfect thing for this use. I used this combinition to paint the plywood decking in the aft deck of a Chris Craft cruiser. The petrinol is an oil based additive and makes the paint flow better, it increases the dry time somewhat but is nice to work with. And anything you use with plywood only penitrates to the first layer of glue. With beaverboard I would assume the glue thing might be the same. The marine paint would be better than housepaint because of the enviroment the trailers are used in, we're outside with them, and marine paint is usually a better grade of paint. Hope this helps. Les
By the way the deck is still looking good with no peeling, rot, or delamination after 15 years of rain, washing, etc.
Additive
Posted:
Sun Oct 22, 2006 8:17 amby Lesbest
Here is the company website and it is marine penetrol
Couldn't get the link to work for me.
http://www.flood.com
Good luck. Les
Posted:
Sun Oct 22, 2006 9:55 amby SkipperSue
I would have to say the boiled linseed oil would work well, and it's only around seven dollars a quart.
Posted:
Sun Oct 22, 2006 10:03 amby dwgriff1
The world is full of plastic laminate (formica) on particle board, without ANY kind of sealing of any kind.
They go bad, but most get 20 to 30 years of good service first.
I am sure it will make you feel better to coat it with something, but it probably won't make much difference. PB is magnetic to water.
dave