wow my first big fk up ever how to fix
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Well i paint just about enything and end up with great results
so we got offered a rental of a £29000 booth just installed i thought great we will go for that
BAD IDEA
i work everyday in a home made booth thats can out perform a 29k booth anyday ……so the problems
loads of trash in the base and clear so were going to reflat the whole panels
also we baked this clear coat we used de beer 8-402 i think was the no …. put last coat of clear on and bang runs everywere so we gave it 20 mins and baked it for 30 min at 60deg we entered the booth to find solvent pop everwere wtf i felt like hanging myself
what do i do to flatten the runs ?? and do i just sand back the solvent pop and leave for a bit opened up then base and clear ??
just shows you …you dont have to spend money to get great finishes and less hastle !!!!!!
tommy
[b]turbo t wrote:[/b]
[quote]Well i paint just about enything and end up with great resultsso we got offered a rental of a £29000 booth just installed i thought great we will go for that
BAD IDEA
i work everyday in a home made booth thats can out perform a 29k booth anyday ……so the problems
loads of trash in the base and clear so were going to reflat the whole panels
also we baked this clear coat we used de beer 8-402 i think was the no …. put last coat of clear on and bang runs everywere so we gave it 20 mins and baked it for 30 min at 60deg we entered the booth to find solvent pop everwere wtf i felt like hanging myself
what do i do to flatten the runs ?? and do i just sand back the solvent pop and leave for a bit opened up then base and clear ??
just shows you …you dont have to spend money to get great finishes and less hastle !!!!!!
tommy[/quote]
Solvent pop i can see where that came from.
but the runs cant blame them on the booth :whistle:
block the runs out either wet flat or dry block witch ever method you prefer.
800 wet
320 dry worked up to 500
everybody has there own method for this part of operations.
solvent pop sand and leave open awhile as you suggest.
just watch with the next application of base dont go to wet or it may react and then you are in deep shit
I would use a razor blade to knock the runs down, then lightly scuff the panel with something like 800 to open it up and allow it to gas off.
YOu are probably going to need to repaint it since it sounds like it is bad. Sand the whole thing real well making sure to completely remove the runs and solvent pop. When you go to respray I would recommend 1 good coat of sealer first to prevent any reaction. Lay light coats of base and lay medium-wet coats of clear instead of full wet coats. Make sure to allow ample flash times. If possible, increase the temp in the booth while spraying to whatever you are comfortable with (25-30 degrees). Then again, allow ample time before baking and make sure the bake cycle is adequate for your clear.
I would honestly just kick down your runs, hit it with 600-800 on the da. base in what is required, and reclear the sucker.
[b]turbo t wrote:[/b]
[quote]also we baked this clear coat we used [b]de beer 8-402[/b] i think was the no …. [b]put last coat of clear on[/b] and bang runs everywere so we gave it 20 mins and baked it for 30 min at 60deg we entered the booth to find solvent pop everwere wtf i felt like hanging myself
[/quote]
8-204?How many coats did you put on? One will do with that stuff, or a light then full one at the most. Any more than that and runs and pop are inevitable I’m afraid.
spraying in a booth is a lot diff than spraying with a fan in the wall. not all products work well in a booth. you need to find what products work for the environment you are painting.
as far as dirt and stuff.. well gotta work on your prep better 😉yeah you got to make sure your prep work is done. find out if the clear you use is compatbale with a booth. clears can be very tempermental when it comes to bake temps and time. as for the solvent pop a few things i can think of. too heavy, too much product from start to finish, to much time or lack of time inbetween coats of clear. you need to find out how much of a temp drop your getting in the booth. like mine has a 30 degree drop. like i set the dial at 160, car temp is 130.
thanks for the input guys
the clear was 8-414 and yes your still right 1 coat would have done lol im used to uing like max meyer 0200 and you apply that how you want it to look and walk away with this sh*t if you do that you have to have a drip tray at the bottom of the car to catch it running off 😛
when we went back to speek to the guy with the booth we had a look around i just about fell over when i saw the compressor wow it was only 150 tank with 10cfm rating that may also explain a bit of the problem lol the base went down sweet with my iwata ws400 at 19psi but when i cranked the sata upto 2 bar for the clear it must have been on over run lol……another thing i should have checked :whistle: :whistle: But you think the people that installed the booth would have advised him …..
so i advised him and couple of hours later he has ordered a 20+cfm compressor …air filter set up and tacky booth coating
so 2 weeks time were going to hit it again this time i might just use my max meyer clear lol
so whats best for the runs that are falling off a body line?????
thanks again
tommy
Post some pics of that bad boy. 😛
[b]Han wrote:[/b]
[quote]Post some pics of that bad boy. :P[/quote] X2Im picking the runs are pritty bad if they are dripping of the panel.. i would block them down and start again 😉
[b]turbo t wrote:[/b]
[quote]the clear was 8-414 [/quote]
I did some field testing on that clear for DeBeer, and was extremely impressed by everything but the price :lol1I gave it all kinds of abuse under their watchful eye and it always performed brilliantly for me. We even did an extreme overload test – one light coat, then two full wet coats back to back with no flash. The car was then pushed straight into the pre-heated oven (80C) with no flash time, and it didn’t pop or champagne in the slightest. There was one area that had started to sag a little due to the excessive amount of material, but it didn’t turn into a full scale run.
Sorry to ask, but did you get the mix ratio right? It’s 3:1, with a bare minimum of thinner/reducer. I think it’s a 5% max, but I use 3%
Maybe you just let it flash for too long. These ultra high solid clears really need heat on them pretty quickly to drive out the solvents before the surface closes up. Most of my jobs get less than a minute, just long enough for me to put my gun down and open the dividing door to the oven. Too long and they ‘skin over’, so once heat is applied the solvents have to force their way through the closed surface – hence the pop, or they get trapped in the thicker areas around panel edges and cause small bubbles (champagning).
good info andy
[b]ding wrote:[/b]
[quote]good info andy[/quote]X2! 😉
HERES A PICS OF THE BAD BOYS
not that bad lol
[IMG]http://i17.photobucket.com/albums/b65/xr3iturbo/for%20sale/DSCF0817.jpg[/IMG]
this is the one im bothered about
[IMG]http://i17.photobucket.com/albums/b65/xr3iturbo/for%20sale/DSCF0815.jpg[/IMG]
[IMG]http://i17.photobucket.com/albums/b65/xr3iturbo/for%20sale/DSCF0816.jpg[/IMG][IMG]http://i17.photobucket.com/albums/b65/xr3iturbo/for%20sale/DSCF0818.jpg[/IMG]
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