Epoxy Curing Question

A

aldefed

Promoted Users
So I got the 2 coats of epoxy on the car and started the body filler work/blocking. I would like to do as much of the sanding as possible outside but saw in other posts that being in the sun will reduce the 7/14 day recoat window. Is this a function of the heat or UV that speeds up the curing of the epoxy? If UV, can I put some old sheets over the car in the areas I am not working on? Thanks.
 
Chris_Hamilton said:
Depending on your location. When I quizzed Barry on this he was hesitant to give me exact figures as like I said you location and time of year have a lot to do with how much UV your panel sees.
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Yes lately I have noticed that... this was a quote from a long time ago and with Arizona blue sky sun.
 
where did this 7/14 day recoat come from. i noticed on FB this is claimed. there are so many autobody hacks on there it's crazy. lot of bad information being given.
 
Last edited:
I saw it written multiple times you have 7 days to recoat without sanding, 14 days with sanding and over 14 days needs to be sanded and recoated with epoxy.
 
shine said:
where did this 7/14 day recoat come from. i noticed on FB this is claimed. there are so many autobody hacks on there it's crazy. lot of bad information being given.
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From the tech manual:
IMG_3374.jpeg


Don
 
i don't push even the 7 day window. 3 is my max. but that 14 day thing is going to get a lot of folks in trouble if they misread it which i've seen on FB.
hell right now it's more like 30 minutes around here.
 
aldefed said:
So I got the 2 coats of epoxy on the car and started the body filler work/blocking. I would like to do as much of the sanding as possible outside but saw in other posts that being in the sun will reduce the 7/14 day recoat window. Is this a function of the heat or UV that speeds up the curing of the epoxy? If UV, can I put some old sheets over the car in the areas I am not working on? Thanks.
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Also yes if you can cover it from UV then you can use the normal guidance.
 
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