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Post by rnemtp3 on Dec 7, 2009 17:53:16 GMT -6
I just finished making my first bookcase ( pictures when paint is dry). My wife wanted it painted and since it is a bookcase for the kids stuff she was wanting something to keep the paint from getting scuffed and scraped off. So, can you put some sort of finish like poly over paint to keep it looking OK or should I just keep the touch up paint handy? Any thoughts are very welcome. So far I have impressed her with the construction (made from scrap AC plywood and scrap pine boards) I have actually impressed myself since this is my first real project. I have learned a lot. It seems to me that since it was made from pretty rough scrap that "protecting" the pain is like putting an alarm on a yugo
But hey she has put in another order for a bookcase and TV stand which she has also approved funding for as well as a few pieces of new equipment. So if I can keep her happy with some paint protection it is worth it. Thanks for your help.
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Post by TDHofstetter on Dec 7, 2009 18:12:08 GMT -6
If you put poly over it (it CAN be done, with extra steps), it'll probably yellow the paint. I'd recommend a coat of shellac first to make sure the poly bonds to the paint...
...but the best bet in my opinion is just to use a high-quality paint, let it cure until it's HARD cured, and (to quote the Beatles) "Let it Be". Good-quality paint will withstand quite a beating, and it's really easy to touch up later on.
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rrich
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Post by rrich on Dec 7, 2009 19:56:02 GMT -6
I painted my router table cabinet with a good quality of white latex. Then I covered it with Minwax Polycrylic, gloss.
Per advice from Minwax, "Putting Polycrylic over paint is not recommended. However professionals are known to allow the latex to cure for at least 4 weeks, then rough the surface with 220 grit sand paper and a coat or two of Polycrylic."
The interesting thing is that the Polycrylic is water based and does not yellow the underlying paint. The Polycrylic should cure for a week or so before being stressed.
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Joe Lyddon
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Post by Joe Lyddon on Dec 7, 2009 20:04:33 GMT -6
Blonde shellac was the first thing that came to me...  |
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Post by Ruffnek on Dec 7, 2009 20:09:03 GMT -6
Yes, you can apply poly over paint but in your case, I agree with Tim...just paint it with a good quality paint and let it cure before subjecting it to any abuse.
Repairing any damage will be much more easily effected if you use paint only...just touch it up. If you apply poly over the paint and still get damage, you have a much more involved task of repairing it.
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Post by cabinetman on Dec 8, 2009 3:27:55 GMT -6
No need to repeat what's been said. An issue to consider would be "blocking", which is the sticking of painted surfaces. One cause would be if not completely cured. Some paints are more subjective to blocking than others. Use top quality semigloss or gloss acrylic latex paint. Low quality latex paints can have poor block resistance, especially in warm, damp conditions. Follow paint label instructions regarding dry times. Acrylic latex paints generally have better early block resistance then vinyl latex paints or alkyd or oil-based paints; however, alkyds develop superior block resistance over time. |
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Post by Leo Voisine on Dec 8, 2009 11:19:03 GMT -6
I will echo what is already said.
Yes you CAN poly over paint and yes it will yellow. I have applied Poly over paint and you will get an extremely durable surface.
However,
A GOOD quality paint like Sherwin Williams or equivenent quality paint is all you really need.
I painted a wood box with premixed milk paint and topped with poly. It has been about 4 years now and the finish is still holding up GREAT. Mind you - a firewood box is about the most extreme end of abuse to a finish that I can think of. Your bookcase will not see 1% of that sort of abuse.
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wisardd1
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Post by wisardd1 on Dec 10, 2009 17:20:08 GMT -6
You could just buy a Mr. Clean Magic eraser, wrap it up, and give it to your wife for Christmas.
Instructions: For use only with child's bookcase. Use once or twice a weekly to keep paint looking fresh and clean.
dale
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Post by rnemtp3 on Dec 12, 2009 8:29:07 GMT -6
Well since the wife is almost 7 months preganant I dont mess with her too much. I am also trying to get her on my side to do more projects so no rocking the boat right at this time. I have also convienced her that since this was more like a practice project used from scrap that we will try the paint to see how it does while I make another one with some better material and more knowledge to improve my skills. It is amazing how much you learn by doing. There is a ton of stuff that I have read and "know" but once you get into actually making sawdust getting it from your head into practice is more challenging. Then after you mess it up you remember how or what you messed up on. On the other hand, when some of the things you have learned (most from you guys) get used and turn out right it make you want to build more. Kinda like hitting a great golf shot. Make one good shot and you think that you are ready for the PGA. Kinda how I felt when I got this bookcase put together and things turned out pretty good for me. Small win to others but great for me. Now where are the plans for that highboy? Thanks for all the help guys and I promise some pics soon.
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wisardd1
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Post by wisardd1 on Dec 13, 2009 0:42:50 GMT -6
Unless! You have a failure of Historicity (the failure to learn from one's past mistakes)
dale
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Joe Lyddon
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Post by Joe Lyddon on Dec 13, 2009 12:55:14 GMT -6
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lexrex
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Post by lexrex on Dec 13, 2009 20:06:56 GMT -6
I will echo what is being said about quality paint. Drop some cash on Sherwin Williams gloss or semi-gloss and you will be pretty happy. It IS expensive but worth it IMO if you are looking for durability and paintability.
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rrich
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Post by rrich on Dec 15, 2009 14:58:30 GMT -6
If you used a Latex paint, it may never really dry DRY...  I used a latex paint on some shop pantry shelves (bookcase style) hung on wall... That damn paint STILL causes cans to ever so slightly STICK to the shelves... Joe, The trick is to ask for "Non-Blocking" paint. |
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Joe Lyddon
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Post by Joe Lyddon on Dec 15, 2009 15:15:46 GMT -6
I didn't know there was any such thing as NON-Blocking paint till NOW!  ... and I still don't know what it is... ;D Are you saying it's possible to get NON-Blocking Latex paint that will eventually FULLY CURE where cans will not STICK to it?!  I cannot understand why they made the KIND I ended up with!! Useless chit... worthless crap...! |
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