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Old 11-17-2015, 03:16 PM   #21
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It's all pretty much moot until they are fully cured. 30 day cure for an adhesion test is the industry standard. Some of them may have a better block resistance in a few hours or days than others, but that really doesn't tell the whole story adhesion wise. I've been testing adhesion for years and nothing you have come up with surprises me much. But it's good to see someone in the painting trade do this for themselves instead of just believing the Home Depot salesclerk. LOL!

And Advance does have an alkyd component so yes it should be expected to take a little longer for it to cure.

I wish one of you guys would do this with your trim paints sometime! That would be very interesting! (I've done adhesion and block resistance testing on over 32 s/g and satin acrylic and hybrid paint brands, but what do I know?)
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Old 11-17-2015, 08:28 PM   #22
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Quote:
Originally Posted by PACman View Post
It's all pretty much moot until they are fully cured. 30 day cure for an adhesion test is the industry standard. Some of them may have a better block resistance in a few hours or days than others, but that really doesn't tell the whole story adhesion wise. I've been testing adhesion for years and nothing you have come up with surprises me much. But it's good to see someone in the painting trade do this for themselves instead of just believing the Home Depot salesclerk. LOL!

And Advance does have an alkyd component so yes it should be expected to take a little longer for it to cure.

I wish one of you guys would do this with your trim paints sometime! That would be very interesting! (I've done adhesion and block resistance testing on over 32 s/g and satin acrylic and hybrid paint brands, but what do I know?)

Did you ever test muralo ultra?
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Old 11-18-2015, 09:41 AM   #23
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Did you ever test muralo ultra?
No I haven't unfortunately. It hasn't been available in my area for quite sometime. Being a California paint dealer I have access to it, but I haven't gotten any Muralo products in yet. I may hit up my rep to get a sample of it to try out.
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Old 11-18-2015, 12:50 PM   #24
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Graham, bought by muralo then California, has always had stellar adhesion for me in tests like this. And adhesion developed quickly once dried.


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Old 11-18-2015, 04:29 PM   #25
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Graham, bought by muralo then California, has always had stellar adhesion for me in tests like this. And adhesion developed quickly once dried.


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Yeah, other then Ben Moore, Cali pretty much has the actual good paints locked up right now. Bring it!
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Old 11-18-2015, 08:27 PM   #26
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3 days- Neither breakthrough or 046 would scratch today and peelbond seems to be holding a bit better then 123. No changes in advance or sure seal
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Old 11-18-2015, 08:32 PM   #27
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Its interesting to see that the acrylics are holding so well. I would not have even expected a oil primer to bond without sanding But breakthrough and 046 are holding great. I knew 046 was good but that surprises me.
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Old 11-18-2015, 08:33 PM   #28
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Its interesting to see that the acrylics are holding so well. I would not have even expected a oil primer to bond without sanding But breakthrough and 046 are holding great. I knew 046 was good but that surprises me.
.........

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Old 11-18-2015, 11:58 PM   #29
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Sorry to mess you up prc. I went back and reread the first post than edited my question while you were answering it.
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Old 12-13-2015, 09:47 AM   #30
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Here's the 1 month results, best to worst.

BM 046
PPG Breakthrough
Zinsser 123
BM Sure seal
XIM Peelbond
BM Advance

The top half of each sample is the fingernail scratch area, bottom left is 5in1 and bottom right is the scraper.



The scraper

A few things I noted about each one. The 046 had great resistance all around and cured to a hard finish. Breakthrough had one anomaly at 1 week where you can see it scratched with nail in one area with more ease then others. The edges of that area will not scratch up today. Surface contamination is possible but I did dust and tack. 123 and sure seal were about tied but 123 did have a harder surface making it more resistant initially. I would consider Peelbond and Advance both complete failure.
In the sanded section all passed in the same order.

Of these I would only consider 046 acceptable, and maybe breakthrough with more testing, in the unsanded areas.
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