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Undercoating Question - Reducing to Spray:
#2567657
10/22/18 02:36 AM
10/22/18 02:36 AM
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Joined: Jan 2003
Posts: 8,392
Highland, MI.
Sunroofcuda
OP
master
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OP
master
Joined: Jan 2003
Posts: 8,392
Highland, MI.
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Question before I conduct any testing, but I have a 5 gallon drum of the GREAT old original Texaco rustproof formula (long ago discontinued) & want to reduce it so I can apply with a wand sprayer. It's thick like a tub of grease, so if I reduce it with mineral spirits to spray it, I know it will become flammable as hell. The question is, will the mineral spirits evaporate & just leave the rustproofing after a while? If not, what can I safely reduce it with & not have a fire hazard?
No Man With A Good Car Needs To Be Justified
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Re: Undercoating Question - Reducing to Spray:
[Re: Sunroofcuda]
#2568842
10/24/18 01:17 PM
10/24/18 01:17 PM
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Joined: Jul 2011
Posts: 954
Chicago
PurpleBeeper
super stock
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super stock
Joined: Jul 2011
Posts: 954
Chicago
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Send me a private message and I will help you. You need to see if you can find a Material Safety Data Sheet (MSDS) or Safety Data Sheet (SDS) for the Texaco product you have. See if you can find a part number on the bucket which may help.
So, to answer your question.... mineral spirits evaporates very, very slowly (days/weeks) & is not the best solvent for some types of undercoating/paint. Yes, "eventually" the mineral spirits will evaporate & leave just the undercoating.
Almost all paint thinnners (aka undercoating thinners) are flammable.
70 Roadrunner convt. street car
440+6, NOS, 4-spd, SS springs
'96 Mustang GT convt. street car
'04 4.6 SOHC, NOS, auto, lowered
"Officer, that button is for short on-ramps"
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Re: Undercoating Question - Reducing to Spray:
[Re: Sunroofcuda]
#2568872
10/24/18 01:49 PM
10/24/18 01:49 PM
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Joined: Mar 2007
Posts: 3,277
West Coast, USA
jbc426
master
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master
Joined: Mar 2007
Posts: 3,277
West Coast, USA
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You can figure out which laquer thinner works best and how much to thin it by making a few very small (1/2 cup or so) sample batches of undercoating, and brush them out on some scrap metal leaving a final thickness of 1/8" or so. Let them dry. You can try using automotive lacquer thinner, which should cut the material, flash off nicely and work. The colder the conditions, the faster evaporating the thinner should be. Do not use mineral spirits! It will never dry. Try making a few batches that end up having a spray-able consistency through an undercoating spray gun similar to this. https://nhoilundercoating.com/product/spray-gun-for-nh-oil-undercoating-products/
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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Re: Undercoating Question - Reducing to Spray:
[Re: Sunroofcuda]
#2569202
10/25/18 01:02 AM
10/25/18 01:02 AM
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Joined: Jan 2003
Posts: 8,392
Highland, MI.
Sunroofcuda
OP
master
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OP
master
Joined: Jan 2003
Posts: 8,392
Highland, MI.
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I have not had time to test yet. I want to try a piece of paper towel with some of the Texaco stuff on it & see how it burns, or if it burns.
No Man With A Good Car Needs To Be Justified
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