OzVMX Forum

Clubroom => Tech Talk => Topic started by: D project on October 03, 2014, 12:57:49 pm

Title: Two pack or powder coat?
Post by: D project on October 03, 2014, 12:57:49 pm
Got a frame that I need to re do. I've always just stripped and re painted myself which doesn't last too well.
What's peoples prefrance, powder coat or two pack? Pros and cons?
Title: Re: Two pack or powder coat?
Post by: Davey Crocket on October 03, 2014, 01:28:35 pm
2 pac.....powder coating is for ballastrading and outdoor furniture.
Title: Re: Two pack or powder coat?
Post by: Andrew L on October 03, 2014, 01:35:56 pm
2 pac.....powder coating is for ballastrading and outdoor furniture.

x2
Title: Re: Two pack or powder coat?
Post by: bazza on October 03, 2014, 02:13:48 pm
Done both.......2 PAC !!!
Title: Re: Two pack or powder coat?
Post by: oldyzman on October 03, 2014, 03:03:11 pm
2 PAC
Title: Re: Two pack or powder coat?
Post by: cemotobull on October 03, 2014, 03:25:27 pm
After spending 3 afternoons stripping a frame of powder coat - the Answer is acrylic! You can even weld on it!!! 2 PAC is something the bro's listen to!
Title: Re: Two pack or powder coat?
Post by: 80-85 husky on October 03, 2014, 03:52:07 pm
Powdercoat is a final solution, its simple, you drop it off and pick it up. it can block threads and the frame must be spotlessly clean of grease etc that can melt and run when they heat it. its a tough finish. all threads must have dummy bolts or nuts and any bushing surfaces covered otherwise you will find out how tough it is when you have to sand it back.

paint is the better option if you want to redo it at a later date. (turn a rider into a showpiece etc),

more color and finish options just a bit fiddlier to prep unless you send it to a paint shop or your a backyard painter.
Title: Re: Two pack or powder coat?
Post by: D project on October 03, 2014, 07:29:20 pm
Thanks for the info guys. I've heard the powdercoat can chip off easily?
Next question, any recommendation for someone bike/price friendly in Melb to paint it?
Title: Re: Two pack or powder coat?
Post by: piney on October 04, 2014, 07:14:58 am
D project - hot tip. get your painter to put a bit of flex aid in the paint (like they use on plastic bumper bars) it will give paint a bit of flex, which makes more resilient to chipping.
ps used to be tech rep for DuPont 
Title: Re: Two pack or powder coat?
Post by: ARN on October 04, 2014, 12:05:23 pm
hi Jason

Darren mc mullin  that nutter on the muggins got his number if you need

cheers arno
Title: Re: Two pack or powder coat?
Post by: Ngapuhi on October 04, 2014, 01:15:19 pm
I powdercoat my roadbike frames as it's a lot more durable in that arena and is a lot cheaper than paint (due to prep time, ally). I powdercoated my TT frame on advice from mates (it was the mid 90's and apparently everyone was doing it) years back. I was told it doesn't rub off like paint around the boot zone, well that turned out to be an urban myth 2 rides later. I use 2 pack on the dirt bikes now as you can touch it up as was said previously. With the powdercoat on the threads, most good powdercoaters will have heat resistant silicone bungs to cork the holes to save the potentially painful task of cleaning threads.
Title: Re: Two pack or powder coat?
Post by: shelpi on October 04, 2014, 01:51:38 pm
2k and if you get ya hands on the top of the range enamel  :o yes I just said enamel, its great stuff, dries quick, lays on real nice, chip resistant, no poison to your nervous system (allways use correct PPE)  woops need another bracket easy prep and spray nobody can tell, looks like 2pac, left overs out of gun wont set ;)

get shit enamel it will peel off or chip off :(  automotive Dulux is great ;), but hey there are some real good paints in rattle cans if ya upto it :o
Ive got bikes painted in 2pac they stay shiny longer ;)
Title: Re: Two pack or powder coat?
Post by: oldyzman on October 05, 2014, 01:55:22 pm
If you slice back the frame yourself, i dont believe it has to be all back to bear metal. I personally would not use a primer, rather a etch additive or an etching paint as most of the frames were painted with colour straight onto the frame so when the boot marks show you do not see a line of white primer. Just my thoughts anyway... I am sure others will have different opinions.
If you were in sydney i would recommend my brother Marc- Sydney custom spraypainting at Guildford. all he does is bikes and maybe one special car once every 3 or so years.
Title: Re: Two pack or powder coat?
Post by: Mick D on October 05, 2014, 02:16:47 pm
I definitely use to prefer two-pack,,,,,,,,,,,,,,

But, time is money,,,and being time poor and embarking on many projects,,,,, ::) ::) ::)
I will be using Powder Coat for the next half a doz,,,
choice based on,,,,

$150 - $180 for garnet blast, light primer, then colour for complete MX Frame, arm brackets pedals, etc.
Job done and very good quality. He contacts you if he finds any cracks.

As Davey Crocket says its only$50 for powder coat to be chemically stripped these days.
Time is life and life is short.
Title: Re: Two pack or powder coat?
Post by: Ngapuhi on October 05, 2014, 02:52:52 pm
If you slice back the frame yourself, i dont believe it has to be all back to bear metal. I personally would not use a primer, rather a etch additive or an etching paint as most of the frames were painted with colour straight onto the frame so when the boot marks show you do not see a line of white primer.

Did my RM and KX frames this way. The KX had different layers of paint on it so coarse scotchbrite and thinners got it back to the original paint. Quick haze coat of etch primer, colour 10 mins after. All done in the back yard hanging from my 'Hills hoist spray both'. Don't tell the neighbours ;)
Title: Re: Two pack or powder coat?
Post by: 80-85 husky on October 05, 2014, 04:35:21 pm
Don't tell the neighbours ;)

don't have to...the white commodore has a fine overspray of some weird color ;D ;D
Title: Re: Two pack or powder coat?
Post by: shelpi on October 06, 2014, 01:04:56 pm
Don't tell the neighbours ;)

don't have to...the white commodore has a fine overspray of some weird color ;D ;D
Enamals great for that but 2k is better, the neighbour wont be able to get it off, well easily anyway ;D
Title: Re: Two pack or powder coat?
Post by: Davey Crocket on October 07, 2014, 11:38:37 pm
Another thing with powder is they don't have a shinny black, it's more middle of the range so if you want black black then paint is your only option. Powder is porous also so rust can get under it.