Is there any reason...

[Anderson22]

... why I shouldnt' use PVA to seal my rudder?

The rudder has been stripped back to the wood and I've decided that it looks better that way. However, it still needs to be sealed and I thought a PVA solution may be a cheap ane effective solution.

Thank you for your opinions,

BJ

 

[VicS]

I'm not sure that PVA is 100% water proof.

 

[Talbot]

Epoxy with a cover of 2 part varnish to protect the epoxy from UV and stop it becoming opaque.

 

[Blue5]

Try this link might be helpful

http://www.enigmatist.com/free/john49/pvafaq.htm

/forums/images/graemlins/wink.gif

 

[jh001ace]

I wouldn't. I think you'll find PVA is water based

 

[aitchw]

Even the so called exterior PVAs soften and breakdown in prolonged contact with water. Not a good idea. As suggested elsewhere use epoxy and paint/varnish over it.

 

[graham]

if your boat is to be kept on the trailer then I would use a 2 pack varnish to keep it looking good or ordinary yacht varnish if you dont mind redoing it each year.

. If its going on a mooring you will need to antifoul the underwater part so use a primer and undercoat under the antifoul with varnish if you want above the antifoul line.

Mine is made of Iroko which is a durable timber,I presume yours will be the same?

 

[Anderson22]

I'm getting the feeling that PVA is not as durable as I first thought, so epoxy, paint and antifoul it is.

Graham, not sure what kind of timber the rudder is made from but it is a dark heavy wood.

Thanks to all,
BJ

 

[roger]

re PVA glue

PVA is not considered to be a waterproof glue.
In a bodge job I tried using it to glue down four paving slabs to the concrete below. It didnt work for long.

 

[Captain Coochie]

Re: re PVA glue

PVA is used to seal walls before plastering ,interior and exterior wood work but is only a water resistant glue . Not a waterproof glue .