Help! Got runs in epoxy sealer, now what?

E

edtekk

I sprayed epoxy sealer 1:1:1 and I got some runs. Can I fix this by wet sanding or do I need to sand runs out and start all over again:(
 
What I would do is wet sand them out with 600 and spray another coat 1:1:1
I've double coated sealer before with no problems. Just have to wait proper flash times. Someone else may have a better solution but that's what worked for me.
 
elwood said:
What I would do is wet sand them out with 600 and spray another coat 1:1:1
I've double coated sealer before with no problems. Just have to wait proper flash times. Someone else may have a better solution but that's what worked for me.
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elwood said:
What I would do is wet sand them out with 600 and spray another coat 1:1:1
I've double coated sealer before with no problems. Just have to wait proper flash times. Someone else may have a better solution but that's what worked for me.
Click to expand...
Thanks elwood. How long till I can sand the sealer?Just sprayed today. Should I wait till tomorrow?
 
crashtech said:
Seems like some heat will be required as the epoxy dries pretty slowly.
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Thanks again crashtech. I have heat in my garage and have it on now. Is the correct thing to do is wait till tomorrow or could I get on it tonight?
 
If you sand it too soon, it's going to make a mess. What I was talking about is an infrared light like this:

Infratech INF14-1000 120V Medium Wave System Portable Infrared Curing Lamp with One Head

Infratech INF14-1000 120V Medium Wave System Portable Infrared Curing Lamp with One Head at Great Prices | National Tool Warehouse
www.nationaltoolwarehouse.com

Only you are going to be able to tell when the runs are sandable. Right now they might still be pretty soft inside. You can start sanding them really easy, if they tear open and start making a mess, it's too soon.
 
Got the heat cranked up. Just checked and runs are still a little soft so I'll wait till tomorrow. Just to be sure as elwood advised me after sanding spray another coat of epoxy sealer over entire area. Would you recommend I reduce it to 25% instead of 50% to maybe cut down my chances of getting runs again. I realize to some my questions are stupid but I'm just not sure how to properly correct my screw ups and would rather seek advice then do what I think is right.You don't know what you don't know. Your help is greatly appreciated.
 
dhutton01 said:
I use a 25% reduction with good results.

Don
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When I reduce epoxy should I adjust my gun settings. I have an lph400 1.4 and been spraying unreduced epoxy 2-1/2 turns out and full fan 28psi at gun 120psi from regulator on wall with decent results. I didn't change them when I sprayed the epoxy sealer. Thanks for any help.
 
O.K. Don and Chris I'll bump the air a little bit and increase my speed. Been working on trying to spray consistent passes but not as easy as it sounds. Appreciate the info and I'll try again tomorrow, hopefully with improved results.
 
crashtech said:
If you sand it too soon, it's going to make a mess. What I was talking about is an infrared light like this:

Infratech INF14-1000 120V Medium Wave System Portable Infrared Curing Lamp with One Head

Infratech INF14-1000 120V Medium Wave System Portable Infrared Curing Lamp with One Head at Great Prices | National Tool Warehouse
www.nationaltoolwarehouse.com

Only you are going to be able to tell when the runs are sandable. Right now they might still be pretty soft inside. You can start sanding them really easy, if they tear open and start making a mess, it's too soon.
Click to expand...
Don't have one of those but if I did I would need at least two.
 
Just to be on the safe side, after runs are sanded out, scuff the rest of panel before respraying any more sealer. Since it's reduced it dries faster and I don't remember how long the window is to recoat without sanding.
 
elwood said:
Just to be on the safe side, after runs are sanded out, scuff the rest of panel before respraying any more sealer. Since it's reduced it dries faster and I don't remember how long the window is to recoat without sanding.
Click to expand...
Will do. Going to scuff and reshoot today but I'm just going to reduce epoxy 25% and make some adjustments as Chris and Don had suggested and we'll see how it goes. thanks again
 
At 25% spray light coats ed, too heavy and it will crater. It has a small learning curve but its awesome epoxy, best ive ever used. When you get it figured out you'll see its worth the trouble.
 
Slofut said:
At 25% spray light coats ed, too heavy and it will crater. It has a small learning curve but its awesome epoxy, best ive ever used. When you get it figured out you'll see its worth the trouble.
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Got ya. Just finished sanding and scuffing. Going to wipe it down, wait the hr. Tack it and give it another try. I'll post my results. Thanks to you and everyone else for passing on your knowledge. :)
 
edtekk said:
I realize to some my questions are stupid but I'm just not sure how to properly correct my screw ups and would rather seek advice then do what I think is right.You don't know what you don't know.
Click to expand...
Your questions are far from stupid. The only reason a pro is a pro is knowing how to correct mistakes from experience in doing so. When spraying your 1:1:1 sealer, the runs were probably from trying to achieve coverage with a thin product. Mixing it that thin leaves a transparent coat when sprayed correctly, just for future reference.
 
texasking said:
Your questions are far from stupid. The only reason a pro is a pro is knowing how to correct mistakes from experience in doing so. When spraying your 1:1:1 sealer, the runs were probably from trying to achieve coverage with a thin product. Mixing it that thin leaves a transparent coat when sprayed correctly, just for future reference.
Click to expand...
Thanks texasking and that coupled with my less than stellar gun skills and you get runs :) . I'm all ears when it comes to this stuff guys so I'll have another question tomorrow when I make my next mistake. Painting cars ain't easy. Oh and by the way with all the info ascertained from this website and those who responded to my questions I was finally able to get the rear body section of my corvette painted today and managed to spray the sealer with no runs but I did get 2 very small runs by 2 of the rear tail lights recesses when spraying the SS. I would think most amateurs might get runs there so I didn't want to disappoint the car painting Gods, so I made 'em happy, again. :) But overall it came out pretty good less the trash which is another thing I haven't been able to get a handle on. But I got a lot of sandpaper and gotten pretty good at using it. Today was a good day!
 
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