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Old 01-22-2009, 07:30 PM   #16
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How many coats of primer do I need on fresh drywall?


Thanks for the explanation sirwired. Now I know what that means.......(you learn something new everyday)

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Old 01-22-2009, 11:51 PM   #17
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How many coats of primer do I need on fresh drywall?


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Originally Posted by DangerMouse View Post
my friend just asked what happens if you don't use primer and just paint on the drywall?
says he did it in his bedroom 7 years ago and it looks fine, so why he asks?

DM
We have all done it. A lot of times you can get away with it. BUT, you don't have the durability you will have with a coat of primer. You are more likely to peel it right off and I have seen it happen. You also don't seal it as well so you may need more coats. Also, Zinsser 123 (The most common choice for drywall primer) is $20 a gallon or less, so it is cheaper to throw a coat of white or tinted primer and a coat of paint than it is to throw 2 coats of paint.
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Old 01-23-2009, 05:02 AM   #18
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How many coats of primer do I need on fresh drywall?


RE: Post #14
great.... now it's a conspiracy... he even bet me no-one would answer this yesterday....
of course i know why you use primer, but how to explain to him?
he thinks it's just a conspiracy by the paint companies to get you to use more paint.

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Old 01-23-2009, 05:11 AM   #19
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How many coats of primer do I need on fresh drywall?


that was weird.... Matthew's post didn't show up the first time.... the thread ended with sirwired?
hmmmmm

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Old 01-23-2009, 04:07 PM   #20
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How many coats of primer do I need on fresh drywall?


Quote:
Originally Posted by DangerMouse View Post
RE: Post #14
great.... now it's a conspiracy... he even bet me no-one would answer this yesterday....
of course i know why you use primer, but how to explain to him?
he thinks it's just a conspiracy by the paint companies to get you to use more paint.

DM
There might be some truth to that, like in the 70's car manuals used to say change your oil every 6K miles, but now with all the advances in oil technology we have to change it every 3k.

Like I said, I have seen paint peel right off drywall that wasn't primed first. When you are putting a warranty on a job, and you want it to hold up, prime it first.
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Old 01-26-2009, 11:05 PM   #21
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How many coats of primer do I need on fresh drywall?


KILLZ!!! Bottom line best product on the market... No questions, one coat gets more than the job done...
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Old 01-27-2009, 06:29 AM   #22
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How many coats of primer do I need on fresh drywall?


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What is kilz2?
Kilz2 is a water-base Kilz product found in Big Box stores. (No reputable paint store will carry it, even if they carry the original oil-base Kilz.) While it is inexplicably sold as a primer, it is, in fact, an adhesion reducer. As in, if you put it on the wall, there is a decent chance it will literally peel off in sheets a few days later, even if the surface underneath was pretty sound before hand.

No, we aren't making this up. This board has had several folks report the complete and total failure of this product, the only solution for which was to scrape it all off and start over. I suppose all these reports of failing Kilz and Behr could be from a disgruntled Masco Corp., Architectural Coatings Division, employee, or it just really is that horrible.

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Last edited by sirwired; 02-04-2009 at 03:14 PM.
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Old 01-27-2009, 08:41 AM   #23
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How many coats of primer do I need on fresh drywall?


Thanks sirwired.

I will make sure I never purchase that product...............
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Old 01-27-2009, 08:44 AM   #24
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How many coats of primer do I need on fresh drywall?


you got that right YM, tnkz sirwired!

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Old 02-04-2009, 03:08 PM   #25
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How many coats of primer do I need on fresh drywall?


Sure now you tell me
I painted my bathroom in the last house - possibly with Kilz since I have the remnants of a can
At any rate, Kilz or the prior owner did not use any primer on the drywall. Put the finish coat on, & the paint peeled right off the wall!!
I was really upset, I had a lot of work to do & was hoping the bathroom would look nice for the GF

I have bought a lot of Behr paint & haven't had any problems
I did have the paint peel off the front fiberglass door trim
Not the door itself - just the trim around the 3/4 window
The wife ended up liking the door with the white trim around the window. So I have left it for now

I now have a ton of priming to do
15x16 sunroom, about 800 sq ft on the 2nd floor
And a 24x36 addition - 2 floors & a walk up attic 19x24
I was going to buy a 5g bucket of primer

I have about 1/2 gallon of PVA primer still
Should I pick up a 5g bucket?
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Old 05-04-2009, 09:53 PM   #26
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How many coats of primer do I need on fresh drywall?


My basement is being drywalled currently: knockdown ceiling texture tomorrow, final sanding and clean up on Wednesday, then my wife and I will be painting non-stop for quite some time. Our newly finished basement will add about 725 sq ft, with 70% of the space at 9' walls, and 30% at 8' walls for soffitting.

I've been trying to read up on the right primer/sealer to use. We just picked up 5-gallons of Conco P001 - Drywall P.V.A. Primer/Sealer - Interior Water Base from Menards. A couple of questions:
  1. Is this a decent product that will effectively seal and prime in one coat? We'll be top-coating walls with two coats.
  2. Is 5-gallons going to be enough? Application will be done by rolling.
  3. With knockdown ceilings, is priming required before painting?
Thanks in advance for any advice or feedbaclk.

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Old 05-05-2009, 12:46 AM   #27
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How many coats of primer do I need on fresh drywall?


Conco is VERY basic stuff...

Percent Volume Solids is a key rating:
* Conco PVA Latex primer, PVS=28%
(VERY WIMPY numer there...)
>>> If I was priming with this...I'd definitely 2-coat it!
* C2 Lovo WBP (Wallboard-primer), PVS=34%
(Much better...)
* C2-One primer, PVS=38%.
(Very good # for a primer, plus...it's a super stain-blocker. It was designed to beat Zin's 123. Has MUCH less odor than 123)

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Old 05-05-2009, 07:42 AM   #28
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How many coats of primer do I need on fresh drywall?


Shoot. Well, probably will be returning that and getting something else. I just looked at the label, and couldn't find a PVS number on the label itself. When shopping for a different primer, is PVS number typically listed?

Any other recommendations from either Menards, Lowes, Home Depot or Sherwin Williams with regards to brands and types?
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Old 05-05-2009, 02:56 PM   #29
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How many coats of primer do I need on fresh drywall?


Just forget the big box, go to SW, and just ask them for an appropriate new-drywall primer. They'll hook you up with whatever PrepRite product they feel is appropriate.

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Old 05-05-2009, 03:10 PM   #30
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How many coats of primer do I need on fresh drywall?


That's my new plan. Also going to have them tint the primer.

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