Ashkellybarr Posted August 21, 2019 Share Posted August 21, 2019 Hi guys. Looking for recommendations on how to tackle the chassis frame. ive got two options for stripping either acid dip the whole frame Or wire wheel and two options for sealing either paint, epoxi dp40 the 2K Black it. Or, powder coat it black its a 4wd and gets abused, I haven’t done something like this before so want to “do it right, do it once” and make sure it lasts for years. all pro’s and cons welcome, thanks in advance for help and ideas Quote Link to comment Share on other sites More sharing options...
tortron Posted August 21, 2019 Share Posted August 21, 2019 There's a place that sandblast and electro galv spray. Supposed to be good for 30 years on an oil rig https://www.autoblast.co.nz/services/underbody-rust/ 2 Quote Link to comment Share on other sites More sharing options...
dabuzz Posted August 21, 2019 Share Posted August 21, 2019 sand blast, and that POR 15 chassis black stuff Powdercoat would be spendy, and wouldn't last, once it chips moisture can get under it eventually lifting it off, and it cant be touched up 1 Quote Link to comment Share on other sites More sharing options...
dmulally Posted August 21, 2019 Share Posted August 21, 2019 Welding stuff on once powdercoated is a pain. I'd just go wire wheel and POR-15. Don't go out of your way to make the chassis super clean. POR stands for Paint Over Rust so it adheres better in my experience. On clean steel I have had it flake off. Even when keyed. Quote Link to comment Share on other sites More sharing options...
tortron Posted August 21, 2019 Share Posted August 21, 2019 I'd skip the POR and go direct to durapox if painting The steel plate (heavily pitted and showing rust heave) I wirebrushed a couple years ago and gave 3 coats with the gun has sat outside since then and looks like the day I painted it 4 Quote Link to comment Share on other sites More sharing options...
sheepers Posted August 21, 2019 Share Posted August 21, 2019 dont use POR15, its fucking useless. epotec 408 is a fucking great two pac primer but its 1/4 the price of durapox. sandblast or dip, whatever. once you get it back clean the fuck out of it, scotchbrite the hell out of it then spray it with epotec. whatever you do after that doesn't matter, with that base your good. 5 1 Quote Link to comment Share on other sites More sharing options...
Spencer Posted August 22, 2019 Share Posted August 22, 2019 ^ this is the only way. Find your Protec supplier and use 408 epoxy. Protec also do cheap black industrial spec 2K urethane top coats which are great for this kinda thing. 2 Quote Link to comment Share on other sites More sharing options...
Lord Gruntfuttock Posted August 22, 2019 Share Posted August 22, 2019 Interesting. Love me the durepox, but it is spendy... Quote Link to comment Share on other sites More sharing options...
sheepers Posted August 22, 2019 Share Posted August 22, 2019 the ONLY thing i will say against epotec is that the resins tend to float to the surface as it dries. so the first sanding that you do tends to gum the paper a bit. however if you use a DA sander the paper wont load anywhere near as much. also, also, you can wet lay onto epotec with great results. over thin the primer to about 40% and it flats out like magic. wait about 2 hours (depending on temperature) then you can top coat straight over it. only ever done 1K base and clear but im sure most top coats would be no drama. 1 Quote Link to comment Share on other sites More sharing options...
cletus Posted August 22, 2019 Share Posted August 22, 2019 Are these epotec /durepox products ok to spray at home with a mask? Or is it only top coats/clear that have the isocyanate issues/instant cancer Quote Link to comment Share on other sites More sharing options...
sheepers Posted August 22, 2019 Share Posted August 22, 2019 i spray it all the time. mask and glasses obviously. if im spraying something large i have the door down and let it settle before opening the door again. something small i usually dont bother. 10 years and no complaints from the neighbors so far. dont spray clear with the door open though, that shit stinks and goes for miles. 1 Quote Link to comment Share on other sites More sharing options...
Bling Posted August 22, 2019 Share Posted August 22, 2019 Full face mask with the right filters would be the go. I just brush mine on outside, don't want my garage stinking. If you have the coin, have someone blast the chassis and 2 pot epoxy it. Ready to go. 2 Quote Link to comment Share on other sites More sharing options...
Evan Posted August 22, 2019 Share Posted August 22, 2019 +1 for giving it to Autoblast and paying them to deal with it, A+ people to deal with. 2 Quote Link to comment Share on other sites More sharing options...
tortron Posted August 22, 2019 Share Posted August 22, 2019 If I ever have something that won't get blown to lace when blasted I'll be getting their galv job Quote Link to comment Share on other sites More sharing options...
ThePog Posted August 22, 2019 Share Posted August 22, 2019 I will have pricing to zinc arc spray my projects' chassis and deck etc tomorrow, I can let you know how it stacks up. 2 Quote Link to comment Share on other sites More sharing options...
S124AB Posted August 22, 2019 Share Posted August 22, 2019 I used Automotive Blasting in Pukekohe a few years ago to do a car for me. Worth talking to as well. Nothing wrong with Autoblast, but heard from a number of people he's bloody expensive. 1 Quote Link to comment Share on other sites More sharing options...
Ashkellybarr Posted August 23, 2019 Author Share Posted August 23, 2019 23 hours ago, ThePog said: I will have pricing to zinc arc spray my projects' chassis and deck etc tomorrow, I can let you know how it stacks up. Yes please! Quote Link to comment Share on other sites More sharing options...
Ashkellybarr Posted August 23, 2019 Author Share Posted August 23, 2019 23 hours ago, S124AB said: I used Automotive Blasting in Pukekohe a few years ago to do a car for me. Worth talking to as well. Nothing wrong with Autoblast, but heard from a number of people he's bloody expensive. What did the place in puke sting ya? Quote Link to comment Share on other sites More sharing options...
S124AB Posted August 23, 2019 Share Posted August 23, 2019 pm'd Quote Link to comment Share on other sites More sharing options...
ThePog Posted August 23, 2019 Share Posted August 23, 2019 1 hour ago, Ashkellybarr said: Yes please! $1500, that is a lwb safari chassis, plus a subframe, plus a 2.5m X 1.8m deck. It's a no brainer, shit will last forever, plus I truly hate the thought of things rusting after my no doubt shithouse efforts to paint it after all the work I have put in. 2 Quote Link to comment Share on other sites More sharing options...
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