Spray painters / panel beaters - advice needed

[F3ARED]

Sorry mate- our jobs that failed were the exact same as that. Took months to shrink. Our supplier reckons it is a solvent causing the issue but either way it's not going to get better. 90% chance it is the clear itself.

We had about 10 resprays from a really similar looking problem. Mixing and matching clear and colour and primer from different manufacturers is asking for trouble (or at least means when stuff goes wrong they won't pay to fix it)

Good luck.

Wouldnt it be showing in different sections by now tho, and not just the rear end of the car? Like fuck i hope that isnt the problem.

[Soopy]

Dont say that, that means the whole car is fucked. As for being certain about the filler on that quarter, trust me im dead set certain theres nothing on that quarter - not from me nor from previous sprayjob. Confusingly, the LHR quarter went ALL down to bare metal - if its been polyestered that section wouldve been fine??? Getting more and more confused by the minute.

If there is no polyester, no bog and the film build isn't an inch thick. My next port of call would be poor surface prep. Did they prepsol it, did they etch it, did they sand the etch if it sat for extended periods, is the primer compatible with the etch?
What High fill did they use?
Was the High fill sanded adequately?

If all that checks out, possible product failure?

[GreatWallGT500]

get the edge of a razorblade into the crack and lift it. i wanna see how far down the crack goes.

[Soopy]

get the edge of a razorblade into the crack and lift it. i wanna see how far down the crack goes.

This also. My bet is back to the bare metal/previous paint work.

[GreatWallGT500]

whatever it is it is. no point just guessing what could be the problem hey?

its gotta be done anyway so might as well just get stuck into fixing this fuckup

[Soopy]

whatever it is it is. no point just guessing what could be the problem hey?

its gotta be done anyway so might as well just get stuck into fixing this fuckup

Yup its gotta come off. I'd just strip it all right back.

[GreatWallGT500]

OP- where in vic are you? if youre down the s.e side i can come and have a look if you want but imho its bare metal time buddy, i wouldnt wanna fix spots only to have the same problem re appear elsewhere

[GreatWallGT500]

and STAY THE FUCK AWAY FROM WATTYL/DULUX, youre painting a car not a farking house. you get what you pay for with automotive paint products

[F3ARED]

GT500 - im in the north. Yes im aware of the get-what-you-pay-for shit, but ive used this stuff [both the highfill and top coats, this isnt the first car ive prepped] before without this problem so i dont think the issue is the highfill/basecoat. Maybe the KCC stuff the beater used, maybe not. I dont know. As for how far the cracking goes, from what i could see its down to the highfill [ie beige underneath, not blue], will try lift an edge and grab a photo. Going to cry like a little fucking bitch if i have to strip this down . Dont have the time nor money for that to happen....

[GreatWallGT500]

soulds like the base didnt stick to the primer then. ive used the KCC clear over a few brands of paint and this hasnt happened to me either. what brand reducer did your guy use? im guessing something really shit like PRINZ

[BigMuz]

I showed my two paint reps- one agrees with me and the other reckons it is the filler/ primer that has cracked due to the ridge. Our clear issues cracked the same but didn't leave a raised ridge.

[Faux Forg]

How much time passed between the base coat and clear coat applications?

[7HEAVN]

I showed my two paint reps- one agrees with me and the other reckons it is the filler/ primer that has cracked due to the ridge. Our clear issues cracked the same but didn't leave a raised ridge.

Muz which clear?.

[BigMuz]

That would be telling :D

[GreatWallGT500]

that would only lead to delamination. i was thinking that if the car sat there all sanded then all it got was a prepsol before base went on it might explain it but somehow i doubt it. i mean ive left panels sanded for a few days and never had this issue which brings me back to the shit thinners used in the basecoat.

sand the cunt back to primer with an orbie (120), sand it again with a block to get it straight (120 and 240), re prime and give it back to the painter. none of this sanding between coats of primer shit though just slam on 4 decent coats and walk away. (5-10 mins between coats depending on hardner spd and temp)