19 replies to this topic

[Stu.]

2k just means the paint system has two components, a product and a hardener. People relate 2k directly to the harmful isocyanates which as we all know should only be used with a full air fed mask and mechanical room air ventilation.

 

Most epoxy primers do not contain isocyanates (this shoould always be confirmed for the product used) and you can safely use the paint with a good quality filter mask and in a well ventilated area as long as the exposure is not exessive ie closed room with no ventilation.

 

Just looking at a picture doesn't give you the information required. It says this next to the picture -

 

Make sure you always use

appropriate face protection

and good ventilation

 

It also says on page 6 under Respitory Protection, that for brief exposure or low pollution, a respitory filter device can be used, and for intensive or longer exposure a self contained respitory safety device should be used.

 

When I spray, I'm outside under my car port with good crossflow ventiltion on four sides, I keep my skin covered and also limit spray duration. When using my filter mask I can't smell the paint at all when spraying. It's a simple case of being sensible and using common sense.

 

I would NEVER use 2k isocyanate paint at home. That should only be used in a pro booth in my opinion. I know lots of people that do use iso 2k at home and spray wearing a builders paper mask and a t shirt !

 

I'm just making a point here. You need to read the detail of the data sheet before making assumptions.

 

To be honest, if you're worried about ANY exposure from solvents etc, you should be wearing an air fed mask and be completely skin covered when you atomise any paint, including acid etch primers because they all contain 'some' harmful products.

 

If it still makes you uncomfortable then of course that's fine, but you should understand that all paints are generally harmful if breathed in.

 

You would think water based paints would be ok, but even some of those contain isocyanates and need an air fed mask if you go by the HSE's guidance.

 

'Reading' the paint safety data sheet is the ONLY way to know what the minumum PPE requirement is. 

Edited by Stu., 29 May 2016 - 10:20 PM.

[wibs1007]

OK stu if I was to use db body 989 did you use thinners with it and how much do you need to spray entire car and would you spray the heritage panels

[spraybeater]

Best idea is look on their website and down load their Data sheet and HSE sheets read and make your

mind up to use it have used Hb body materials for years excellent products.

As with most available materials the biggest part of the print says for( professional use only) but all

Refinish materials say that mostly as a disclaimer . Best of luck!!!!!

[Stu.]

OK stu if I was to use db body 989 did you use thinners with it and how much do you need to spray entire car and would you spray the heritage panels

 

Yes I'd spray the heritage panels over a well keyed surface. 

 

It's difficult to know how much you'd need, but 2 good coats to the exterior I recon would require around 4 litres plus thinners (bit of a guess, and probably overkill)

 

HB Body 989 is a 4 (epoxy):1 (activator) epoxy primer. You can add epoxy thinner between 20 - 30% to suit you're application. I just go with 4:1:1. This gives good results from my 1.4mm HVLP gun, however I dont use a pot filter because it clogs. No adverse effects though, just make sure your gravity pot is very clean before using and you filter in the paint.

 

Standard 2k thinners works just as well as epoxy thinner.

 

Having read the back of the 989 hardener can, it says 'HARMFUL CONTAINS XYLENE' but makes no mention of Isocyanates. Xylene is a harmful substance but it's not like Iso's. As I said, a good quality filter mask with new filters, fitted to you're face properly and making sure you're covered should be sufficient, assuming your exposure levels are not excessive or contained. Just be sensible about it.

 

I'm no expert in health & safety though, so if you're in doubt I suggest you seek confirmation from the manufacturer for the minimum PPE requirements before using their product. I'm just giving you my interpretation of their data sheets. I hope that's clear.

 

Hope that helps you out wibs, and good luck with your bodywork.

[miniseven61]

Using etch primer is as harmful as 2k, it contains organo phosphate which are carcinogenic [cancer causing], ovoid using it and get someone with the proper facilities to do the job for you.