dulux trade wood primer by roller?

[efunc]

Hi all, I'm doing window frames in this oil based wood primer. The tin says do not use a roller, but I'm using a mix of both brush and smooth foam roller for speed. Should I be concerned? It seems fine to me, but what is the issue I'm not seeing? Is it that it doesn't get into the grain of the wood perhap?

thanks!

 

[sparkwright]

I should have thought window frames were too narrow to even consider using a roller.

Possibly a roller would cause bubbles.

 

[efunc]

4" roller. It's pretty good for the outer part or the frame and sills, but obviously not for the the rest. I fill in with a brush. I find it pretty smooth, and if you go over it again while it's drying gets good coverage. I'm not getting any bubbles either. I don't really understand the drawback right now. Obviously roller alone couldn't do it all though.

 

[Chivas69]

Does it really save much time. Even with a brush, once you've cut in the glass it's literally about 5 seconds to paint each middle section! Plus do you not have to cut in to the walls, sill etc anyway?
I mean, I don't think using a foam roller will harm anything!

 

[efunc]

yes agreed, I ended up using the brush almost exclusively since there is so much narrow beading and cutting in. However I couldn't see any actual problem with roller application in principle, so was wondering why the tin says "Application: brush only"?

 

[Chivas69]

It may be because some paints are sprayable and therefore more likely to just sit on top of the surface!

 

[opps]

I agree with Chivas69

I think it is Dulux's way of saying do not spray the finish.

Looking at the TDS (see the link)- It looks like they are covering their behinds with regards to health risks associated with spraying the finish, rather than saying that spraying will compromise the longevity of the product.


https://prdakzodecodocumentssa.blob.../tds/dt/uk/en/dulux trade wood primer tds.pdf

 

[efunc]

Thank you all. I wish they would just say 'Do Not Spray' instead of "Application: brush only". I found that roller application, in some circumstances, is quick and consistent in terms of finish and coverage. But of course brushing is good too. At least I'm a bit more informed now. Cheers