3 day wait to spray high build? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

stevenfromtexas · 09-26-2017, 08:37 PM

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....)

hugger6933 · 09-26-2017, 09:10 PM

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

stevenfromtexas · 09-26-2017, 09:19 PM

thank you Mr. Jim

72HuggerK20 · 09-28-2017, 03:08 PM

Read the tech sheets, but I've put PPG D822 urethane over DP48LV epoxy with a 40 minute flash time with no problems.

MARTINSR · 09-28-2017, 04:24 PM

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

sevt_chevelle · 09-28-2017, 07:30 PM

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.

67LS3GMC · 09-28-2017, 07:35 PM

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

09-26-2017, 08:37 PM	#1
stevenfromtexas Registered User Join Date: Mar 2013 Location: Hewitt, Texas Posts: 444	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....) __________________ 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
hugger6933 Registered User Join Date: Oct 2008 Location: Marianna Arkansas Posts: 7,257	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

09-26-2017, 09:19 PM	#3
stevenfromtexas Registered User Join Date: Mar 2013 Location: Hewitt, Texas Posts: 444	Re: 3 day wait to spray high build? thank you Mr. Jim __________________ 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
72HuggerK20 Registered User Join Date: Sep 2016 Location: Titonka, IA Posts: 112	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.

09-28-2017, 04:24 PM	#5
MARTINSR Registered User Join Date: Dec 2000 Location: Boise, Idaho Posts: 6,001	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 __________________ 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
sevt_chevelle Lost amongst the CORN Join Date: Nov 2002 Location: Northern Iowa Posts: 1,072	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. __________________ Currently working on How To Videos and custom metal 70 Chevelle gettin Sliced and Diced Anything But STOCK 70 Chevelle SS455 not a typo its a BUICK BABY 49 and 72 Chevy Trucks restored to original...close to it Drommer Stor....Norwegian for Dream Big http://s969.photobucket.com/albums/a...lle/?start=all https://www.flickr.com/photos/47922830@N03/ Pictures of my work and projects

09-28-2017, 07:35 PM	#7
67LS3GMC Registered User Join Date: Aug 2017 Location: MS Gulf Coast Posts: 13	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



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.