*
I just finished some bookcases with Minwax satin poly. I dinged one of them slightly on an edge when I was moving it, and the poly sort of popped up a little bubble. I found that it will scrape right off with my finger nail. I used Minwax stain, dried well over 24 hours, and put on three coats of poly, sanding lightly with 220 between coats. I am very worried about this because I made these shelves for a family member. Any thoughts on what is going on here?
Discussion Forum
Get It All!
UNLIMITED Membership is like taking a master class in woodworking for less than $10 a month.
Start Your Free TrialCategories
Discussion Forum
Digital Plans Library
Member exclusive! – Plans for everyone – from beginners to experts – right at your fingertips.
Highlights
-
Shape Your Skills
when you sign up for our emails
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. -
Shop Talk Live Podcast
-
Our favorite articles and videos
-
E-Learning Courses from Fine Woodworking
-
-
Replies
*
Do you feel like you let each poly coat dry thoroughly before applying the next coat? I would have waited 48 hours (at least) between each coat. If you didn't, I'd say the coats did not dry properly.
Remedy? Get your sander ready to go.
*hmmm - I have never had problems with poly sticking to previous coats of poly. Sounds to me like the first coat is not sticking to the wood. You can wait to long to apply subsequent coats of poly. A week or more most probably would be to long. I have never had a problem applying a subsequent coat within 24 hours. When hand wiping, I have applied 2nd coat within 3 or 4 hours.I tried minwax poly once and did not like it. I use Defthane now exclusively.How long was it after the stain was applied that you put on the first coat of poly? If you used a heavy oil based stain you may not have waited long enough. For most stains, 24 hours should have been long enough, considering normal temperature and humidity.And, what kind of wood was it? Some exotic woods take special preparation.
*One of the problems poly has is you can't sand too finely (especially on closed pore wood like maple) or the finish won't adhere. Go no more than 150 in the future. A light scuffing with a grey or white scotchbrite pad after staining will give the poly some bite. Also you should always ease the edges before topcoating as sharp edges will not hold a poly and are prone snapping off.If may simply be the humidity is high and the poly has not fully hardened. If you can wait, give it another week and test again.
*I'm getting ready to used a polyurethane gel on cherry for the first time. Any suggests, hints, warnings will be helpful.
*You might need to post this under a new heading to get answers specific to your gel stain question.
This forum post is now archived. Commenting has been disabled