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-   -   New drywall, an expirement (http://www.houserepairtalk.com/f107/new-drywall-expirement-16988/)

Jmayspaint 08-04-2013 11:32 AM

6 Attachment(s)

There is so much interesting discussion going on about the pros and cons of priming drywall, I wanted to try using one of the new latex enamel paints that does not recommend primer for drywall.

http://www.valsparpaint.com/system/galleries/download/product_datasheet/391646_Series_Valspar_Ultra_Interior_Satin_Paint.p df


2,400 sq ft of new level 4 drywall. It was all thoroughly vacuumed and ready to paint.
I applied one coat of Valspar Ultra interior satin, sprayed and back rolled at 4-6 mil.

Some first cost pics..


Jmayspaint 08-04-2013 11:32 AM

6 Attachment(s)

There is so much interesting discussion going on about the pros and cons of priming drywall, I wanted to try using one of the new latex enamel paints that does not recommend primer for drywall.

http://www.valsparpaint.com/system/galleries/download/product_datasheet/391646_Series_Valspar_Ultra_Interior_Satin_Paint.p df


2,400 sq ft of new level 4 drywall. It was all thoroughly vacuumed and ready to paint.
I applied one coat of Valspar Ultra interior satin, sprayed and back rolled at 4-6 mil.

Some first cost pics..


Jmayspaint 08-04-2013 11:32 AM

6 Attachment(s)

There is so much interesting discussion going on about the pros and cons of priming drywall, I wanted to try using one of the new latex enamel paints that does not recommend primer for drywall.

http://www.valsparpaint.com/system/galleries/download/product_datasheet/391646_Series_Valspar_Ultra_Interior_Satin_Paint.p df


2,400 sq ft of new level 4 drywall. It was all thoroughly vacuumed and ready to paint.
I applied one coat of Valspar Ultra interior satin, sprayed and back rolled at 4-6 mil.

Some first cost pics..


Jmayspaint 08-04-2013 11:45 AM

2 Attachment(s)

I was pretty happy with the coverage. Probably 80-90% covered, I could barely see the mud.

Sanding was not great. It would sand smooth, but did not powder up.

There was very little flashing in the first coat, surprisingly little actually.
Not much sheen differential between the paper and the mud.

Its too early to check adhesion, but a preliminary tape test showed poor adhesion to the mud, and strong adhesion to the paper.

On this one wall, I did not back roll the finish coat. I wanted to see how a sprayed only finish would do.


Jmayspaint 08-04-2013 11:52 AM

4 Attachment(s)

Since I was experimenting, I decided to test some spackle too.

This is Dap Crack Shot spackle. It says on the can "will not flash paint"
This satin finish seemed like a good place to check out that claim.

Some small gouges in the drywall filled with the Dap, after the first coat and sanding. After the patches dried, I sanded them flush, and finish coated the wall (spray only, no back roll).


Jmayspaint 08-04-2013 11:52 AM

4 Attachment(s)

Since I was experimenting, I decided to test some spackle too.

This is Dap Crack Shot spackle. It says on the can "will not flash paint"
This satin finish seemed like a good place to check out that claim.

Some small gouges in the drywall filled with the Dap, after the first coat and sanding. After the patches dried, I sanded them flush, and finish coated the wall (spray only, no back roll).


Jmayspaint 08-05-2013 06:31 AM

2 Attachment(s)
Quote:
Originally Posted by jeffnc View Post

Wait a minute... if that's the same paint, how do you know if the lack of flash is due to the "non-flashing" Dap or the "self-priming" Valspar? I guess you're saying those spots had no flashing, as opposed to the very little flashing of the paint over other mudded areas?
Well, that's a good point. Both products (spackle and paint) would presumably help reduce flashing.

I have also tried the crack shot with BM Advance gloss without priming it. It did the job there too.

I used it to fix some defects on this stairwell trim, then put 2 coats of Advance on. No flashing at all.

Jmayspaint 08-29-2013 06:04 PM

4 Attachment(s)

Well, after some not so stellar adhesion tests on the basement walls, I decided to use PVA primer on the main floor.. As long as I have been painting, I can't remember having used PVA before.

As before I sprayed and back rolled @4-6mil.
The PVA covered great. Didn't fuzz up the Sheetrock much at all. So far in pleased with it. And it cost about 1/3 as much as using the enamel for a first coat.

It will be interesting to see if it bonds to the joint compound any better that the Ultra paint&primer.


Jmayspaint 08-29-2013 06:04 PM

4 Attachment(s)

Well, after some not so stellar adhesion tests on the basement walls, I decided to use PVA primer on the main floor.. As long as I have been painting, I can't remember having used PVA before.

As before I sprayed and back rolled @4-6mil.
The PVA covered great. Didn't fuzz up the Sheetrock much at all. So far in pleased with it. And it cost about 1/3 as much as using the enamel for a first coat.

It will be interesting to see if it bonds to the joint compound any better that the Ultra paint&primer.


Jmayspaint 09-02-2013 10:23 AM

2 Attachment(s)

One coat PVA, one coat Ultra satin wall paint.

Both sprayed and back rolled.



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