What to use between each spray

S

Siciliang35

I'm going to paint my bumper for the first time. After the primer and sanding what do I use to clean it up before base coat.
What do I use to clean the base before clear.
Some people say waxing grease remover and that watched some videos that they were using other stuff to lift up all the dirt and grime not sure what it was.
 
I've read that waxing grease removers are two different kinds. There's the one with the solvent that you're not supposed to use on something that's painted because it could thin the paint and there's water-based that's safe to use on primer and base coat is that correct
 
Siciliang35 said:
I've read that waxing grease removers are two different kinds. There's the one with the solvent that you're not supposed to use on something that's painted because it could thin the paint and there's water-based that's safe to use on primer and base coat is that correct
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SPI's waterbased cleaner (700) should not be used on base coat. There should not be a need to use any wax and grease remover on base before clear unless it has sat for a long period in an uncontrolled environment or possibly got contaminated. There is a reason why Barry has 2 different types of wax and grease remover. Some contaminants are water soluble (donut grease for example :) ) and some are solvent soluble (glues, tar, etc.) No one wax and grease remover will remove all contaminants which, IMO, is why both should be used before anything is sprayed. Base should only be touched with a tack rag under normal conditions.
 
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To add to what Texas's good advice, if for some reason you have to use a W&G remover on base coat, ONLY use a solvent based W&G remover like SPI 710. Don't flood the surface with it, use it sparingly. Best way if you have to use it is to lightly soak a prep wipe with it wipe the surface, then immediately wipe it off with a dry prep wipe. Work small sections like that till you have it clean. To be clear though, unless you have gotten some form of contaminant on the base there is no need for this before you clear.
 
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all of this is great advise and 100% right. to clear up some confusion though for the op. i consider there to be 3 types of w&g removers. MOST solvent based w&g remover or what is considered solvent base is actually a mineral spirit based or something similar which in most cases will not harm fully dried basecoat. next there is what many companies consider waterbased or waterborne cleaner like spi 700. these do ave alot of water in them but there is also alcohol and small amounts of acetone. so yest these are waterbased but they do have water soluble solvents in them that will usually tear up cured basecoat. finally there are waterbased w&g removers that are very gentle and are more like a light soapy water or very similar to glass cleaner. i think most paint companies have these (not spi). these typically have zero solvents in them and will not harm base in the slightest. in fact many people do actually use glass cleaner. the sprayway stuff in the can works really well.
 
Jim, let me add that Windex isn't one that should be used. It has something in it that stays behind. Tried using it once just prior to applying vinyl letters and the masking tape for positioning wouldn't stick.
I use both 700 & 710 for the reasons Texas posted.
 
I cant confirm on that brand since i have not used it. But i know multiple people that do. I know tons of people that use sprayway and i bought the zep gal concentrate that makes 32 gallons and that stuff works super as well. No glass cleaner SHOULD leave anything behind otherwise you would see the residue on the glass. Keyword..should lol.
 
It should be thoroughly cleaned before any work starts on it.
Scrub it good with a scuff pad and Dawn dish soap, that's all you need.
After priming and sanding all you need is a good tack rag to rid the dust.
I don't even use wax and grease remover anymore, it can cause
more problems than it solves if not used properly.
 
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