Varnish Recommendations

[viking99]

Hi.

Just in the process of fitting a few Oak Veneer doors from Premdor. (4 panel Somerset Oak). I was going to use Ronseal Diamond Hard Clear varnish but asked Premdor if I should be using water based varnish on this product and they have just replied with "it must be high joinery grade, solvent Based Polyurethane varnish/lacquer"

Any suggestions as to what I should be using and is there really a valid reason for not using water based.

Whatever I use, I want to be as clear as possible to retain the appearance of the timber.

Many thanks,
Andy.

 

[foxhole]

Water based could cause the veneer to swell and become rough, moisture on timber gives a rough surface hence the solvent based products.

 

[viking99]

Okay thank you, solvent it is then.

Are they all basically the same, its years since I used polyurethane, I know it can cause yellowing over time, any particularly better than others?

Had a quick look locally and can easily source Ronseal, Dulux, Johnstones.

(Ronseal states 'Mellows with the wood over time'! Is that a typo )