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How do i scuff sand wood that was painted with a high gloss paint and not leave any scratches?

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Forum topic by samsam posted 523 days ago 1783 views 0 times favorited 8 replies Add to Favorites Watch
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samsam

2 posts in 524 days


523 days ago

i painted my kitchen cabinets with valspar ultra high gloss paint. i want to cover it with a min-wax high build polyurethane. what grade of sand paper do i use to scuff sand so as not to leave scratches? will the polyurethane stick without sanding? i painted the cabinets 6 or 7 days ago and want more of a sheen.


8 replies so far

View kizerpea's profile

kizerpea

746 posts in 973 days


#1 posted 523 days ago

Careful..poly over white paint could leave a dull or yellowish tint ….

-- IF YOUR NOT MAKING DUST...YOU ARE COLLECTING IT! SOUTH CAROLINA.

View Tim's profile

Tim

1188 posts in 567 days


#2 posted 523 days ago

Any sandpaper will leave scratches. Even the finest grit sandpaper will leave fine scratches that dull the shine and leave it hazy. After that you need to buff and polish to get a higher shine. Adding successive layers of paint, sanding each up to fine grades and buffing is how you get the really high shine paint finish. Go as far with it as the result is worth to you I guess.

View RogerInColorado's profile

RogerInColorado

289 posts in 560 days


#3 posted 519 days ago

I can practically guarantee that putting poly over white paint will yellow the paint.

You should do as Tim suggests and just count on successive layers of paint. Wet sanding with high grit sandpaper will get you close (I’ve used 1200 grit for latex paint) but you really, really must wait for the paint to cure between coats and you really, really have to have a dust free environment. After each sanding and before its dry, wipe down with DISTILLED water, let it dry. Then apply the next coat. I spray. If you have to use a brush you might look into paint levelers AT A BRAND NAME PAINT STORE.

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Grandpa

3056 posts in 1281 days


#4 posted 519 days ago

What about a liquid sander product. I have had good luck with Paso. My yard keeps it in stock so I am familiar with it. I think clear poly will yellow also. I think I would try to get “Vibrant White” (a color) and see if it is what you are looking for.

View dhazelton's profile

dhazelton

1159 posts in 902 days


#5 posted 519 days ago

Latex is never as glossy as an oil based paint. I would sand extremely well with fine sandpaper and then use oil based over it. But you should let the cabinets cure for a long time before you use any oil based product over latex. I honestly would live with it for a while and see if it still bothers you.

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MrRon

2733 posts in 1849 days


#6 posted 519 days ago

Will not a paste wax and buffing give you that high gloss sheen?

View Dusty56's profile

Dusty56

11639 posts in 2293 days


#7 posted 519 days ago

Where is everyone getting “white” from ? I can’t see it typed anywhere in his current posting.
Water borne poly doesn’t yellow if that is a concern for the OP or anyone else.
I got a chuckle out of Valspar’s advertisement…
“Especially recommended for use in areas where repeated washing would be required: doors, trim, kitchens, bathrooms, children

-- I'm absolutely positive that I couldn't be more uncertain!

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samsam

2 posts in 524 days


#8 posted 518 days ago

Thanks for you posts. As a novice in woodworking projects I learned a lot. As one preacher said ” be as wise as an old cow, eat the hay and leave the sticks.” To solve my problem I used 0000 steel wool to scuff sand and leave no scratches. Then I applied a min-wax high build polyurethane to get the sheen I wanted. Again, thanks for your posts; I am beginning to see that there is more ways than one to skin a cat.

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