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eblock 10-18-2011 07:40 PM

Priming over oil-based paint 12 years old
 
I am repainting with semi-gloss latex interior solid wood doors that are painted now with oil-based gloss. The current paint is 12 yrs old so it has had wear on the gloss, but otherwise no peeling. I would rather not sand if I don't have to. Can I use SW acrylic Adhesion Primer. SW says, "Because of the exceptional adhesion of this product, sanding may not be necessary for most clean, paintable surfaces. Sanding or dulling with an abrasive cleaner is recommended on glossy, hard surfaces for maximum adhesion." If I can use it, is "abrasive cleaner" Ajax? How long should I wait before painting with semi-gloss acrylic? Would you recommend other primers such as Kilz Latex or Zinsser 123 latex?
If I should sand, what grit?
If I can use one of the above primers, any special brush/roller, etc?
Thanks in advance for your assistance.

Brushjockey 10-18-2011 08:01 PM

You'll be OK- But you'll be OKer if you give it a light sand. C'mon- it doesn't hurt!
They call us painters, but really its all about the sanding.
Get a fine or med sponge sander- and all you need to do is dull the shine.Then you're good as gold.
Use you're adhesion primer and you have no worries.

user1007 10-18-2011 08:30 PM

Quote:

Originally Posted by Brushjockey (Post 751622)
You'll be OK- But you'll be OKer if you give it a light sand. C'mon- it doesn't hurt!
They call us painters, but really its all about the sanding.
Get a fine or med sponge sander- and all you need to do is dull the shine.Then you're good as gold.
Use you're adhesion primer and you have no worries.

I have to love this suggestion. Much of what good painters do is all about prep. So often on jobs I was asked if I was ever going to get around to painting. Not yet I would say.

If your surface is intact, do as suggested. Scuff it up. Then I would advise applying a nice coat of alkyd primer. Alkyd primers are still the great equalizers. You can put either acrylics, vinyls or oils over them.

My second choice would be a high bond water based primer.

You do plan to buy paint store, not box store crap primer and paint right?

Brushjockey 10-18-2011 10:01 PM

Now wait a minute Sds- Even I will buy Zinsser products at Menards sometimes.
But not the topcoat. Ever.

jburd964 10-18-2011 10:48 PM

I did a door and some cabinets in my first house that had oil base and didn't sand prior to applying water based paint. I completely re-did guest bathroom and painting door and cabinets were the end game, So after painting I cleaned up room that was it. There wasn't much use of bathroom. Then over time I started noticing paint peeling. Ended up having to stripe sand and repaint all bathroom wood work. Sand and prime its slot easier then this results.

I'm not a professional., But I did stay at Holiday Inn Express last night.

chrisn 10-19-2011 04:16 AM

Quote:

Originally Posted by eblock (Post 751612)
I am repainting with semi-gloss latex interior solid wood doors that are painted now with oil-based gloss. The current paint is 12 yrs old so it has had wear on the gloss, but otherwise no peeling. I would rather not sand if I don't have to. Can I use SW acrylic Adhesion Primer:yes:. SW says, "Because of the exceptional adhesion of this product, sanding may not be necessary for most clean, paintable surfaces. Sanding or dulling with an abrasive cleaner is recommended on glossy, hard surfaces for maximum adhesion." If I can use it, is "abrasive cleaner" Ajax? How long should I wait before painting with semi-gloss acrylic? Would you recommend other primers such as Kilz Latex :no:or Zinsser 123 latex:yes:?
If I should sand, what grit?
If I can use one of the above primers, any special brush/roller, etc?
Thanks in advance for your assistance.

Just do what Brush said:yes:

Matthewt1970 10-19-2011 05:10 PM

Every minute spent sanding is time very well spent and will show in your finished product. It is not just for scuffing for adhesion but to smooth out any inperfections and paint boogers.

chrisn 10-19-2011 05:48 PM

Paint boogers are bad and need to be severely dealt with.:wink::laughing:

eblock 10-20-2011 09:35 PM

Thanks for ur input. Will go with the sanding & primer in a couple of weeks when it cools down here in Florida. Will report then.


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