Bling Posted April 11, 2021 Posted April 11, 2021 What primer are you using? Does presol remove any of the shit on there? Quote
Adoom Posted April 21, 2021 Posted April 21, 2021 Got some Epotec 408 primer. Mixed it real good with a wooden stirring wand because it had separated. Didn't stir the hardener. Used the cup and mixed it 4:1 like the sheet said. Stirred it good in the mixing cup. Brushed it on. Just one coat, not real thick. Definitely needs another coat for full coverage. It still doesn't feel hard dry. I made too much so there was about 15mm left in the cup and that has gone real thick and goopy. Sheet says 16 hours to hard dry. But it's been at least 48. Did I do it wrong? Quote
Muncie Posted April 24, 2021 Posted April 24, 2021 Hosed the boys KXD (Chinese KTM) with some of my homemade chameleon paint looks awesome and covered really well over black 2 light coat and satin clear i had laying around. Hes pretty stoked. 5 Quote
tortron Posted April 24, 2021 Posted April 24, 2021 On 21/04/2021 at 19:28, Adoom said: Got some Epotec 408 primer. Mixed it real good with a wooden stirring wand because it had separated. Didn't stir the hardener. Used the cup and mixed it 4:1 like the sheet said. Stirred it good in the mixing cup. Brushed it on. Just one coat, not real thick. Definitely needs another coat for full coverage. It still doesn't feel hard dry. I made too much so there was about 15mm left in the cup and that has gone real thick and goopy. Sheet says 16 hours to hard dry. But it's been at least 48. Did I do it wrong? how cold and wet is it there? leave it out in the sun and see what happens still thats a long time. Did you give it some time to set up? i.e after you mixed it you waited 10 mins? i see it doenst mention it in the TDS for 408, but seems to be recomended for their other products try mix some fresh stuff up and paint something small and leave it out and see if it does the same. might be soemthing wrong with it Quote
Adoom Posted April 24, 2021 Posted April 24, 2021 10 minutes ago, tortron said: how cold and wet is it there? leave it out in the sun and see what happens still thats a long time. Did you give it some time to set up? i.e after you mixed it you waited 10 mins? i see it doenst mention it in the TDS for 408, but seems to be recomended for their other products try mix some fresh stuff up and paint something small and leave it out and see if it does the same. might be soemthing wrong with it It eventually did go hard after about 4 days. Even the leftover in the pot has turned into a solid block. It hasn't been particularly cold. I don't think it dropped below 9 in the shed over night. It's 25 in there now. I didn't wait after mixing. I'll try that next time. It still needs at least one more coat. Quote
Spencer Posted April 24, 2021 Posted April 24, 2021 Yup I would have a practice before doing it again on anything important. Usually it goes on pretty thick and the only thing that fucks it up is the cold/damp, anything below like 15 degrees will slow it down lots IMO. But 4 days is pretty extreme. In warm weather you should be able to sand that stuff on the same day and it should really always set hard in the pot overnight. Quote
Testament Posted April 24, 2021 Posted April 24, 2021 Weird, did you use any thinners? Mayber the hardener has lost its mojo Only ever used durepox and often get the opposite issue of having to work real fast/brush turning to wood by the end of the job /Ling Quote
Adoom Posted April 24, 2021 Posted April 24, 2021 18 minutes ago, Testament said: Weird, did you use any thinners? Mayber the hardener has lost its mojo Only ever used durepox and often get the opposite issue of having to work real fast/brush turning to wood by the end of the job /Ling No thinner because I was intending to brush this bit. I also don't have a gun that I trust not to be total shit. I would hope it's not lost its mojo, I only just bought it from panelstore.co.nz about 3 months ago. Quote
Testament Posted April 25, 2021 Posted April 25, 2021 I don't know what I'm doing/rookie Dave/this thread showed me how 2pac and Ive always put a little thinners in, just to get consistency right the durepox is too thick with nothing added. Not as much as if I was spraying it, just a little splash. But yeah, different paint, and I don't know what I'm doing with this stuff. 1 Quote
bishbashbosh Posted May 2, 2021 Posted May 2, 2021 Restoring a classic mini, any recommendations for a paint shop in Auckland to do full body shell/bonnet/boot/doors? Minor body work and paint after getting blasted and primed. Cheers. Quote
tomble Posted May 11, 2021 Posted May 11, 2021 I've seen a lot of "don't use X" in this thread, but are there any brand recommendations for epoxy primers (for spraying)? Totes new at this and would rather not get something dumb. Quote
tortron Posted May 11, 2021 Posted May 11, 2021 Durepox is what I have been using for a while. 2k Sticks really well Quote
Testament Posted May 14, 2021 Posted May 14, 2021 +1 durepox. I have stuff I got from my uncles estate, must be over 20years old and its still good. well good enough to stick to things at least. Quote
tomble Posted May 14, 2021 Posted May 14, 2021 Annoyingly the tech data sheet says the gun needs to be 40-55 psi and the gun I ended up getting recommends 30 max PSI. Buuut the guy gave me some free measuring cups and filters! 1 Quote
Nominal Posted May 14, 2021 Posted May 14, 2021 18 minutes ago, tomble said: Annoyingly the tech data sheet says the gun needs to be 40-55 psi and the gun I ended up getting recommends 30 max PSI. Buuut the guy gave me some free measuring cups and filters! I doubt that it will be that fussy to spray. I mix it up and brush it on. I did have a hassle with the hardener going hard on it's own due to not sealing it up properly though. Make sure you have a good mask for spraying paint. Quote
tomble Posted May 14, 2021 Posted May 14, 2021 2 hours ago, Nominal said: Make sure you have a good mask for spraying paint. Partner is a chemist and has a bunch of leftover PPE, including a full face respirator :D. I am concerned about beard hairs creating an unintended extra filter though... Quote
xsinclairx Posted May 20, 2021 Posted May 20, 2021 (edited) Got a question about painting plastic guards. Sanded the crusty Matt black off and the weird cream colour under that to the original colour, went below the original colour to the bare plastic in some spots so obviously put some adhesion promoter on. Where the bare parts are there has been some sort of reaction where it looks almost like paint stripper has been put on it but only around the edge of the bare plastic. Does this makes sense? Andy ideas why? Edited May 20, 2021 by xsinclairx Added picture Quote
tortron Posted May 20, 2021 Posted May 20, 2021 solvent getting under the existing paint. i find some light coats of primer with extra flash off time seals them up and then you can do a proper coat 1 Quote
xsinclairx Posted May 20, 2021 Posted May 20, 2021 That makes total sense. I’ll give that a go cheers @tortron Quote
Bling Posted May 20, 2021 Posted May 20, 2021 Too big to sand the whole lot back to bare plastic? Quote
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