Media Blasting & Paint

[32_Dave]

Hey everyone,

spent tireless hours trying to find info on this on the web, and just get confused.

wondering if anyone has had there entire car media blasted?

and what sort or $$$ is it?

and for paint, when it comes back from blasting, what is the best primer to start with, im told etch primer but it doest have as good rust proofing as zinc chromate and is susceptible to water, however im no paint expert. Which / what is the correct rust proofing solution.

Cheers,

Dave

[SysLink67]

+1

[Mr Cali]

Etch primer is fine if you start to work on it pretty much straight away, but I would not recommend it if you're going to let it sit for more then 6mths or uncovered

[32_Dave]

Thanks mr. cali for reply.

if i get the car blasted, i believe the blokes there with prime it. unsure on what they use, ill have to ring up during the week.

am i in for a scare how much this is worth. Ive been using paint stripper for weeks now, after work and on weekends, its a f**k of a job, and im at the point where i want it done.

I'm considering getting it blasted, they prime it in etch or whatever, ill spray the underside with zinchromate followed by body deader. then send it to someone for paint and panel.

is it alright to use zinchromate on etch primer? Does the etch primer stop the zinchromate from rust proofing or does it limit the adhesion quality of further layers of paint. I have asked a few painters and they cant give me a straight answer, nether can google.

cheers,

D

[Craved]

why do you need this zinc chromate ?

google search found this straight away

"Zinc chromate dust has the potential to cause short-term health effects such as skin irritation, rashes, ulcers and irritation of the eyes, nose and throat.

The National Occupational and Safety Commission (NOHSC) determined that there is sufficient evidence to establish a casual association between human exposure to these substances and the development of cancer.

Zinc chromate, as a dry film, is inert and presents no risk if it stays that way. It’s only when it is disturbed by sanding, grinding and welding activities that it presents a health risk."

Understandibly nearly everything causes cancer these days, but a good underbody sealant doesnt come with that type warning.

There are plenty of rust proofing products out there without such risks - my recommendation is the POR-15 range.

Just a heads up for you though, soda blasting will most likely cost you more, but there is less chance of panel demormation AND the residue it leaves protects the metal from rust until such time as you can properly seal the metal - ie the panel shop.

[32_Dave]

sorry when i say zinchromate i mean as a paint containing the properties.

something like the following:

http://www.tradingpost.com.au/Home-Renovat...ternalHotlink=1

[Craved]

http://www.ppc.au.com/products.htm

have a look at those products instead.