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Old 11-04-2015, 06:12 AM   #1
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Default prep/cleaning commercial/industrial ceiling and walls

I will be quoting on a complete repaint of a high tech machine shop (30 x 50) with some oil vapors on the ceiling (flat deck) and on the walls. The equipment below cannot be moved and machines add up to millions. Space is tight between the machines and I can mask off or wrap the machines individually, but still wondering what the best way is to get the oily film cleaned off of the ceiling and metal joists?
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Old 11-04-2015, 08:45 AM   #2
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It appears introducing pressure washing is not an option. That leaves only hand wiping. But if you had to apply something with a limited ability to clean the surface properly, an oil base primer would be my choice. Of course, it would be better smeared in with a brush and roller rather than just sprayed.

Either way, whenever there's sensitive equipment to deal with that limits your ability to employ productive methods, it increases the labor, and therefore the cost I would imagine.

Note: I would not apply any oil base to bare galvanized steel.

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Old 11-04-2015, 09:32 AM   #3
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I like the Jasco rinse-free, TSP substitute. Spray or roll it on, allow to dwell, and wipe it off. It's a good degreaser.
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Old 11-04-2015, 03:25 PM   #4
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Quote:
Originally Posted by CApainter
It appears introducing pressure washing is not an option. That leaves only hand wiping. But if you had to apply something with a limited ability to clean the surface properly, an oil base primer would be my choice. Of course, it would be better smeared in with a brush and roller rather than just sprayed. Either way, whenever there's sensitive equipment to deal with that limits your ability to employ productive methods, it increases the labor, and therefore the cost I would imagine. Note: I would not apply any oil base to bare galvanized steel.
I'd say a alkyd finish is just as good, you know as a primer, a epoxy? Ply tile or something similar. And yes the hand tooling it mixes it up or whatever, the oil or grease or whatever it just gets mixed in with the oil in the paint, And hand tooling does it better, than does just sprayin

And you know. It sounds good. ' clean all surfaces with a whatever and a whichever' and hey let's do a triple rince while we are at it. We will not paint till we can wipe the substrate with a white rag and the rag shows no signs of filth......yeh and we know in practicality that is just not gonna happen. Most especially on some big area. So we paint over it, and nothing bad ever happens.
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