striping

jwimmer

Member
How long does intercoat clear have to dry when spraying over stripes before next layer of taping can be done? Temps will be in mid 70's
 
I use test panels and spray whatever I'm using on the job so I can see what happens there to avoid problems on the actual work.
 
Too many variables, like how fast the stuff under the intercoat is drying. Infrared lamps are a big help in those situations, otherwise the safe thing to say would be anywhere from a couple hours to overnight.
 
Hi Crash
Not to hijack this thread (this is a related topic), can someone explain a good order of painting for me. I want to lay down a big fat black stripe on what will be my white Triumph TR3. On my blocked "ready for paint" urethane primer, I'll be spraying reduced epoxy sealer, DBU BC, DBU black stripe, and SPI clear. Working from my garage with time to dry/cure before taping, what's a reasonable schedule for this work and will intercoat be useful? Sounds like taping stripes over intercoat might be better than over BC. I did test panels taping on BC and there were tape lines on my BC (1 hour dry time) that showed through the clear. If anyone can recommend the steps and timing for a successful paint job with stripe, I'd be very grateful. Thanks

Pat
 
Sometimes in a production process we will actually paint the stripe first. A solid color like the black stripe can be taped on sooner and safer since it will be two coat coverage and no metallic particles to disturb, as well as offering much less surface area to mask, so using less material. Either way your question about timing just has too many variables to answer, you could spray a test panel along with the vehicle to determine if the tape is still tracking after a given time.

Also. there are pretty few people here with DBU experience and I am NOT one of them. Bob H. would know more about tape times on DBU. I'd have some concerns about its compatibility with SPI Intercoat as well.
 
I haven't used any DBU for awhile and never tried it with SPI intercoat but I'd bet you won't have any problems. I'd do like Crash suggests- shoot two coats of black over the stripe areas, skip the intercoat, let the black cure up for 4hrs-(no sense in rushing it), then tape off your stripes, tack rag it, shoot your white and let it flash off good, unmask, tack rag it, then clear it. You'll end up with a much cleaner job this way and it's easier masking.
 
Thanks Bob. I really appreciate the advice.

When shooting the stripe (which I would do first), do I mask the panels that I'm shooting, or not worry about the overspray as I'm going to back-mask (if that's a word) the black stripe and shoot my white body color over the entire car anyway? Sorry, I realize this is a bit of a NOOB question. Thanks for the great advice. I am a big SPI fan and have received my fair share of good advice from Barry, as I'm learning how to restore my Triumph.

Pat
 
No worry about the overspray usually, two coats over the striped areas isn't going to create a lot of overspray and the build height of the dry edge should be minimal especially if you're shooting over epoxy sealer. Once you get the stripes masked off and if you're worried that the dry edge/overspray may be too rough to melt in when the white is applied you can wetsand it some with 1000 in little time. When you unmask the stripes don't pull the tape off straight up from the panel surface-instead you want to pull it back against itself so it cuts a clean tape line. Make sure the tape is down tight before the white goes on-I usually run the backside of my fingernail or use a decal squeege and some pressure to make sure the tape is tight.
 
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