Painting over varnish

[brianroberts]

Hi - I have a varnished back door that I want to paint. Stripping off the varnish seems too much like hard work. Does anyone know of a suitable primer/undercoat that can be laid down on top of the varnished surface please? Thanks.

 

[Pigeon85]

What top coat do you plan to paint the door with?

 

[brianroberts]

Hi pigeon85 - I was planning to use solvent based gloss.

 

[Pigeon85]

Give it a good sand down remove dust then give a coat of zinsser bin or gardz (have a look at there products online) then oil based undercoat to go with your top coat.

 

[dcdec]

I dunno about using gardz, it wont be able to penetrate a coat of varnish, personally i'd use bullseye 123

 

[Pigeon85]

I dunno about using gardz, it wont be able to penetrate a coat of varnish, personally i'd use bullseye 123

slightly off subject but do you still sand the surface before using these products even though they state no sanding required?

 

[dcdec]

Yep, its always good to de-nib and despite what it says on the tin you're always going to get a far better bond between paint and substrate if its well keyed.

 

[Pigeon85]

Yep, its always good to de-nib and despite what it says on the tin you're always going to get a far better bond between paint and substrate if its well keyed.

thought I would ask, have recently started using there products after seeing a lot of good things said about them on here, have been sanding as its just the natural thing to do really, but was wondering if I was wasting my time or not.