walnut alkyd and inter layer adhesionApproveRejectUn-ApproveSubscribeUn-Unsubscribe
Question asked 2021-04-26 12:39:20 ...
Most recent comment 2021-04-27 13:14:25
Alkyd
Should a shiny, lower paint layer need to be roughened to give it tooth before painting over it (mechanical bond), or would the chemical bond between the two layers be sufficient?
I've been adding walnut alkyd directly to my paint blobs on the palette before painting, without OMS (which is easy to overuse), and enjoy the viscosity, but the result is sometimes a shiny layer .
Thank you,
Richard
EditDelete
Moderator Answer
(brian baade)
It is generally best to have both chemical adhesion and at
least a little mechanical tooth. You will likely be fine, but it could not hurt
to slightly rough up an overly slick surface.
EditDelete
Moderator Answer
(brian baade)
Your scrubby may be fine, only you can tell if it is both
effective and not too aggressive.
On the other hand, I might make a slurry of chalk and some linseed
oil and carefully rub it on the slick surface using a cloth and in small
circular motions. Just make sure to only do this on the slick parts and not
where the paint is absorbent, and to make sure to remove all residues from the
surface after you have diminished the gloss.
This Page Last Modified On:
restricted