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Old 12-10-2014, 12:10 AM   #1
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Default Dryfall on drop ceiling grid

Curious as to whether or not i need to prime the grids before spraying drop ceiling with dryfall. Is adhesion an issue? I know they are ceilings, and will get less abuse, but i want to make sure that the grids won't be prone to failure during cleaning and such.

Thanks in advancw for any input
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Old 12-10-2014, 12:12 AM   #2
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Quote:
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Curious as to whether or not i need to prime the grids before spraying drop ceiling with dryfall. Is adhesion an issue? I know they are ceilings, and will get less abuse, but i want to make sure that the grids won't be prone to failure during cleaning and such.

Thanks in advancw for any input
Why not a regular flat paint?
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Old 12-10-2014, 12:30 AM   #3
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Its a retail clothing store. Someone got into the project managers ear that dryfall would cause less potential for overspray.

I wouldnt need to prime grids if using flat? Excuse my ignorance on this issue.
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Old 12-10-2014, 12:42 AM   #4
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Not that I'm aware of. Especially if you use a dtm flat
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Old 12-10-2014, 10:26 AM   #5
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It depends on who is applying the dryfall, which is an airless spray application. Keep in mind that the paint material converts to a dust which falls to the floor. Good ventilation, and at least a 10' ceiling height is required to allow for that to happen. The use of dryfall does not reduce or eliminate overspray. Generally, most waterborne dryfalls can be applied directly to clean metal surfaces.

If the clothing store is already occupied, you may want to use a DTM like journeyman has suggested.
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Old 12-10-2014, 10:59 AM   #6
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I'm all for spraying whenever u can
Them grids go quick with a 2" roller though
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Old 12-10-2014, 11:12 AM   #7
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I'm all for spraying whenever u can
Them grids go quick with a 2" roller though
Thanks for the comment. I would be spraying both tiles and grid. The issue with dtm is odor. I am concerned about the metal grids failing when routine cleaning occurs if i dont prime them first. I may just push for dtm though
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Old 12-10-2014, 11:54 AM   #8
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Well are they rusting or whats the deal? pics? waterborne is fine but hit the rusty spots first with some blocker
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Old 12-10-2014, 12:14 PM   #9
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Quote:
Originally Posted by MSJ Painting
Thanks for the comment. I would be spraying both tiles and grid. The issue with dtm is odor. I am concerned about the metal grids failing when routine cleaning occurs if i dont prime them first. I may just push for dtm though
I never get the fascination with the Dryfall on the PT. Especially the 'fall dry' part.
If ur shooting a drop ceiling intact. Ur shooting a flat ceiling, nothing is gonna miss. Nothing is gonna fall. It's irrelevant. Use whatever you want that will stick and cover.
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Old 12-10-2014, 06:45 PM   #10
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I think dry fall would be a bigger mess. If there is concern for overspray, the dust from the dry fall will be a worse mess than just spraying a conventional paint.
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Old 12-10-2014, 07:29 PM   #11
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Well are they rusting or whats the deal? pics? waterborne is fine but hit the rusty spots first with some blocker
Not rusting...just concerned about adhesion during cleaning. Odor is an issue, as it will be night work, and the store will be open during the days. I will post a pic momentarily. Dtm is probably out due to odor. They want it sprayed. They asked me about dryfall. I would have probably roll primed the grids, and sprayed the whole thing afterwards, but if it isn't necessary, i can lower the bid a bit.
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Old 12-10-2014, 07:33 PM   #12
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Here is a pic...it is part drywall, part drop ceiling.
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Dryfall on drop ceiling grid-1418257985021.jpg  

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Old 12-10-2014, 08:12 PM   #13
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I've used SW waterborne drywall on a bunch of theaters, stores and restaurants without any issues, adhesion or other. Works great, drys quick and low odor.
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Old 12-10-2014, 08:24 PM   #14
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*dryfall not drywall
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Old 12-10-2014, 08:56 PM   #15
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Quote:
Originally Posted by MSJ Painting View Post
Not rusting...just concerned about adhesion during cleaning. Odor is an issue, as it will be night work, and the store will be open during the days. I will post a pic momentarily. Dtm is probably out due to odor. They want it sprayed. They asked me about dryfall. I would have probably roll primed the grids, and sprayed the whole thing afterwards, but if it isn't necessary, i can lower the bid a bit.
Dulux/ici/Glidden has a low voc paint called lifemaster. Comes in a flat as well, as being very durable.
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Old 12-10-2014, 09:40 PM   #16
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I've used SW waterborne drywall on a bunch of theaters, stores and restaurants without any issues, adhesion or other. Works great, drys quick and low odor.
Thanks...no priming?
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Old 12-10-2014, 10:17 PM   #17
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One, no one cleans suspended ceilings. Therefore, I don't believe there will be an adhesion problem with any of the professional name brand waterborne products.

Two, If someone were inclined to clean them, at least a sheen would be better than a flat in my opinion.

Three, there is probably a supply and return air register for the HVAC system. Depending on the volume of air the unit is blowing into the conditioned space, it could create overspray problems. You may want to see if it's possible to turn the blower off. If you can't, make sure you put a filter over the registers.

Last suspended ceiling I sprayed about a year ago, I used one coat of PPG Pitt Tech Plus. It's still holding up well. One problem with spraying suspended ceilings, is that if a tile needs to be replaced, it will have to be painted. Make sure the customer has access to the color.
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Old 12-10-2014, 11:05 PM   #18
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Shouldn't need to prime. I've never known anyone to prime, even when using dark colors.
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Old 12-11-2014, 03:26 PM   #19
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Quote:
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One, no one cleans suspended ceilings. Therefore, I don't believe there will be an adhesion problem with any of the professional name brand waterborne products.

Two, If someone were inclined to clean them, at least a sheen would be better than a flat in my opinion.

Three, there is probably a supply and return air register for the HVAC system. Depending on the volume of air the unit is blowing into the conditioned space, it could create overspray problems. You may want to see if it's possible to turn the blower off. If you can't, make sure you put a filter over the registers.

Last suspended ceiling I sprayed about a year ago, I used one coat of PPG Pitt Tech Plus. It's still holding up well. One problem with spraying suspended ceilings, is that if a tile needs to be replaced, it will have to be painted. Make sure the customer has access to the color.
Thanks. Answered or confirmed all i needed to know.
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Old 12-14-2014, 08:31 PM   #20
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For future jobs, if you want to restore ceiling tile, you can using a brand called ProCoat. It has what you need to neutralize nictone. You can paint directly to ceiling grids. Problem with painting tile in a commercial setting is that you take away the fire rating and also you reduce the sound absorption of the tile. This paint doesn't do this. Also, you spray in place with almost any color. The paint doesn't bridge a gap. So the tiles will move freely without getting stuck in place after the paint dries.

http://procoat.com/
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