PLEASE HELP - Weather Proofing Hardboard?

[A]

Hi-

I need to weatherproof some hardboard so it will withstand being outside for at least 12 months.

The board will be mounted on a panel of another type of wood that will not warp, I plan to glue it on with Liquid Nails.

What is the best solution for protecting it? I thought to use some exterior wood varnish on the front, back and edges. Will that be sufficient?

Thanks

Joel

[Andy Dingley]

Replacing it with foamed UPVC. You haven't much chance of weatherproofing hardboard, outside Arizona. If you're desperate for wood, then use a waterproof plywood instead.

-- Smert' spamionam