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+-- Thread: Tell me about paint with primer (/showthread.php?tid=7351072)
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Tell me about paint with primer - Randy C - 11-03-2019
i want to repaint the trim on my house. It is all hardie board. When I painted it for the first time 8 years ago, I just used paint and didn't prime because the hardie board came pre primed.
Fast forward today and I see that a lot of the paint that they sell says it includes primer. The paint on my trim is in good shape, just a little faded. I assume I don't need to prime if the current paint is in good shape.
So do I need to buy paint with primer or just paint? Or does it even matter.
Thanks
RE: Tell me about paint with primer - Robert Adams - 11-03-2019
Marketing hype. Is it better Yes does it replace primer No.
RE: Tell me about paint with primer - fredhargis - 11-03-2019
In this case it doesn't matter....I'm not even sure you can buy paint that doesn't claim to have primer in it.
RE: Tell me about paint with primer - Snipe Hunter - 11-03-2019
(11-03-2019, 08:24 AM)Robert Adams Wrote: Marketing hype. Is it better Yes does it replace primer No.
+1
A quick wash and a quick sand with 120-180 grit to give it some "tooth" so the new primer sticks and you should be good to go. Paint with primer in it doesn't really have primer in it. It has glue in it or an "adhesion promoter". Even if you buy paint with primer, you'll still know you have real primer between coats.
Primer is cheaper, use it to your advantage. It will fill any porous areas (hardi board is porous) and probably save you at least one coat of paint.
RE: Tell me about paint with primer - Woodworm! - 11-03-2019
Paint is paint, primer is primer
RE: Tell me about paint with primer - EdL - 11-03-2019
Local Ace guy told me always prime for outdoors use.
Ed
RE: Tell me about paint with primer - Woodenfish - 11-03-2019
You do not need to prime if the existing finish is holding well. Cleaning the surface thoroughly is more important in your case.
RE: Tell me about paint with primer - Cooler - 11-04-2019
I read that primer should be painted over within 2 weeks of coating. So the pre-primed Hardi-board might have been compromised compared with fresh primer.
An accidental test:
I got some regular latex paint that dried on my hands and arms and it washed off in the shower. (Behr)
I got some primer + paint on my hands and arms and it finally washed off after two showers and a good bit of scrubbing.
I got some straight primer on my hands and arms and it took four showers and a lot of scrubbing to get it off my skin.
That sold me on using first a primer and second a good paint (I used Behr Marquis paint & Zinsser 123)
RE: Tell me about paint with primer - meackerman - 11-04-2019
(11-04-2019, 08:40 AM)Cooler Wrote: I read that primer should be painted over within 2 weeks of coating. So the pre-primed Hardi-board might have been compromised compared with fresh primer.Primer you buy in the store, yes. The preprimed wood, no. Different stuff
RE: Tell me about paint with primer - Cooler - 11-04-2019
(11-04-2019, 09:13 AM)meackerman Wrote: Primer you buy in the store, yes. The preprimed wood, no. Different stuff
I bought pre-primed moulding for my garage door from Lowes. It is the only part of the garage paint job that has peeling paint. Maybe some of it is "different stuff" but some of it is not really effective.