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09-26-2017, 08:37 PM | #1 |
Registered User
Join Date: Mar 2013
Location: Hewitt, Texas
Posts: 444
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3 day wait to spray high build?
hello guys, need some clarification. pulled the trigger and bought my primer today. paint store guy said to wait 3 days after spraying the epoxy before shooting the 2k urethane. i've read other post that say you can spray a lot sooner, with respect to the flash time of course.
little help. Nason brand fulpoxy and 2k urethane thank you in advance (total rookie....)
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Steven '67 SWB, 250ci, 3OTT.......this is my first build...... I wonder if my grand kids will say, "I would give anything to have my grand dads 2005 Chevrolet Z71" |
09-26-2017, 09:10 PM | #2 |
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Join Date: Oct 2008
Location: Marianna Arkansas
Posts: 7,257
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Re: 3 day wait to spray high build?
I havnt used Nasson I use Omni and you don't have to wait anything like that. I'd say 24 hours is plenty long. I have sprayed high over epoxy in the same day without a problem
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09-26-2017, 09:19 PM | #3 |
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Join Date: Mar 2013
Location: Hewitt, Texas
Posts: 444
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Re: 3 day wait to spray high build?
thank you Mr. Jim
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Steven '67 SWB, 250ci, 3OTT.......this is my first build...... I wonder if my grand kids will say, "I would give anything to have my grand dads 2005 Chevrolet Z71" |
09-28-2017, 03:08 PM | #4 |
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Join Date: Sep 2016
Location: Titonka, IA
Posts: 112
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Re: 3 day wait to spray high build?
Read the tech sheets, but I've put PPG D822 urethane over DP48LV epoxy with a 40 minute flash time with no problems.
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09-28-2017, 04:24 PM | #5 |
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Join Date: Dec 2000
Location: Boise, Idaho
Posts: 6,001
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Re: 3 day wait to spray high build?
A lot of "value lines" (cheap stuff) like Nason have very limited tech sheets with little info. The "recoat window" is a term commonly used on something like Epoxy because it can be sprayed and then you can apply something over it without sanding, like a sealer, thus the "recoat window," that window of time you can do this. That recoat window is all over the board depending on the product from 20 minutes to a few days.
If all else fails call the Dupont tech line and get the REAL answer. Often the "value line" is limited by the marketing dept more than the tech dept. The marketing dept doesn't want the value line to work as good as the top end stuff right? Well often it's the SAME STUFF in both cans (NO KIDDING) and the value line is limited by the marketing dept in it's uses. So give the tech line a call and get the real info instead of our opinions. Brian
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1948 Chevy pickup Chopped, Sectioned, 1953 Corvette 235 powered. Once was even 401 Buick mid engined with the carburetor right between the seats! Bought with paper route money in 1973 when I was 15. "Fan of most anything that moves human beings" |
09-28-2017, 07:30 PM | #6 |
Lost amongst the CORN
Join Date: Nov 2002
Location: Northern Iowa
Posts: 1,072
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Re: 3 day wait to spray high build?
Id be willing to bet he meant to say you have up to a 3 day recoat window. Many epoxies have this feature that allows you to spray the epoxy then wait up to say 72 hours before you must scuff the epoxy before applying a different product.
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09-28-2017, 07:35 PM | #7 |
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Join Date: Aug 2017
Location: MS Gulf Coast
Posts: 13
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Re: 3 day wait to spray high build?
1 hr. to topcoat at 70 deg. must sand after 24 hrs. Important -- 30 min. induction above 70 deg. 60 min. induction below 70 deg. 24 hr. pot life
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