Drinaldis

Ok, I got the SprayMax 2K Clear but I made the mistake of consulting the internet with regards to safety protocols. Yikes !! Now I have to find someone with a spray booth and respirator. Any insight?

s65e90

Yes, spraying catalyzed 2 part paint def requires a mask. Just go buy a nice 3m one from Home Depot. I use that paint alot. It comes out MINT from a can.

Drinaldis

Ok, found a spray booth but it's not climate controlled. Can I shoot this stuff at 55 degrees?

pfbz

You can warm the can in warm water first...

s65e90

eh. For the money and labor spent already, I'd like a little more warmth. Then leave in sun

s65e90

FYI this is a single stage clear and won't be nearly as durable as the 2x clear.


EDIT: Nevermind, I see you got the 2k.


This forum sucks with the new layout.

Dock

Are you using their primer first?

s65e90

You don't use primer, it goes right over the sanded lens(es).

Dock

We're talking SprayMax, right? Their web site states this regarding 2K Headlight Clearcoat..."Special 2K clear coat for subsequent protective coating of polycarbonate lenses that have been pretreated with headlamp primer", and that the 2K is..."Ideally matched to the headlamp sealer" (they appear to be using "sealer" and "primer" as the same product, but I may be missing something).

Link --> http://www.spraymax.com/en/products/...ht-clear-coat/

Dock

SprayMax primer link--> http://www.spraymax.com/en/products/...dlight-sealer/

s65e90

Interesting. I was referring to the regular old Spraymax 2k clear. I use it on plastics all the time without primer, without issue. I don't see how polycarbonate would be diff. I would go for the original regular Spraymax shot right over 800 grit sanding. Sometimes I think manufacturers make stuff just to sell additional products, but I'm not a chemist.

Dock

I'm following this thread because I plan on polishing the headlights on my Mercedes. I had not heard of the SprayMax so I looked at their website for more information. I would rather just apply the 2k clear, but if there is an advantage in using the primer first then that's what I'll do.

wross996tt

I would likely default to the manufacturer on this one...unless you are a polymer chemist and know whether or not the clear coat will "attack" polycarbonate ...

bugeyemilo

Interested in what you fellas find out...

pfbz

It reads to me like the 'primer' (1K Headlight sealer) is nothing more than an adhesion promoter, common when painting slick plastics but this one is likely just a bit different in that it is totally clear.

If you are spraying clear over a freshly sanded headlight that was only finished to 1,500 as typical, I think there would be tons of tooth in the headlights and adhesion wouldn't be an issue at all. If you are spraying clear over headlights that have been sanded and buffed to perfection before spraying the clearcoat, then adhesion might be more of an issue.

Sanding at P400, then P800, (then optionally P1500), then spraying with clear coat without adhesion promoter works great.