Hi guys, bit of a pickle…..i have treated an “engineered/veneer” pine door, the manufacturer of the door states to use “water based” products only. I have done a light sanding, 2 coats of water based stain and 1 coat of water based varnish. When applying the varnish the stain is showing on the bristles of the brush and of course when dipped into the container of varnish it will therefore discolour the varnish. The stain does not seem to be peeling of the door (noticeably) but obviously some stain is coming off onto the brush. I have purchased the stain and the varnish from the same manufacturer.
1a. should you pop grain on “veneered” door before staining?
1b. what is the general thickness of veneer on doors?
2. why is the stain showing on the brush?
3. If i continue with the varnish, will the door change colour as i progress due the stain being transferred to the container of varnish through the brush bristles?
4. How do i sop this from happening?
Would appreciate help.
Thanks guys
M
Replies
Water based products dry to the touch before they really set up. Your water based varnish is picking up the water based stain because it is the same solvent. The "engineered veneer" could be made of anything, I would not try to raise grain... let your first coat do what it will do and seal the surface a bit at the same time. Sand it if you have to.
I would not worry about dramatic color shift on the door from the traces being picked up, but working from a pour-off pail rather than from the can will keep the can from being a colored solution for the next use.
A coat of blonde de-waxed shellac over the stain / under the poly would have sealed them from eachother.
Hi MJ, unfortunately I already raised the grain. Do you mean just pouring from the can to bucket everytime I'm applying or pour from can to bucket after, say each door? Should I apply the shellac over the stain before I apply the varnish from here on. Is the shellac water based?
Appreciate your input.
Mark
Yup, the water based varnish is dissolving the water based stain.
How long in between the stain and varnish?
Hi John, it's been over 24 hours between stain coat and varnish.
Pour what you will use each time, to keep the color out of the can. Pour less if uncertain...you can always pour more.
Shellac is alcohol base, so it should not reactivate the stain and will not dissolve under the water based poly.
Thanks MJ, much appreciated.
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