Utter Noob Guide to Spray Gun Installation

[CamMoreRon]

Squiggs said:

One thing I haven't seen mentioned (unless I've missed it) is that the fumes can be flammable and any motors for fans etc should therefore be approved.

I think it was mentioned somewhere that they needed to be flame-proof, but worth reiterating!

I still have a couple of unanswered questions:

1 - Are paint arrestor filters like THESE suitable for removing paint & iso particles from the extracted air? They are supposed to remove >95% of paint particles.

2 - Assuming the above filters are fine, are there any other measures that I need to take with the exhausted air, or am I ok to duct it straight out of the workshop?

I'm going to start building the booth this weekend.

[It's fixable...]

I did mention ATEX and zoning - ATEX is the European directive relating to explosive atmospheres and zoning is the process by which areas are identified with respect to their flammability. Electrical equipment working in an area that is zoned as hazardous needs to appropriately rated and or be enclosed or be shrouded with fresh air to avoid the risk of an explosion.

However the OP has dismissed the use of the correct type and quantity of extraction fans as they are "too expensive" and although he realises he has to filter the extracted air he does not appear to realise that he will also need to allow an equivalent amount of fresh filtered air into the booth to replace what he is extracting. The inlet air needs to be filtered otherwise it will bring in contaminants that will affect the quality of the spray job.

A temporary spray facility has to meet exactly the same legal requirements as a permanent one.

I'm out !!!!!!!

[CamMoreRon]

It's fixable... said:

I did mention ATEX and zoning - ATEX is the European directive relating to explosive atmospheres and zoning is the process by which areas are identified with respect to their flammability. Electrical equipment working in an area that is zoned as hazardous needs to appropriately rated and or be enclosed or be shrouded with fresh air to avoid the risk of an explosion.

However the OP has dismissed the use of the correct type and quantity of extraction fans as they are "too expensive" and although he realises he has to filter the extracted air he does not appear to realise that he will also need to allow an equivalent amount of fresh filtered air into the booth to replace what he is extracting. The inlet air needs to be filtered otherwise it will bring in contaminants that will affect the quality of the spray job.

A temporary spray facility has to meet exactly the same legal requirements as a permanent one.

I'm out !!!!!!!

I think you've misunderstood.. I understand that I need to use ATEX fans, and am actually going to view an 8000m^3/h unit later today.

I also realise the intake air needs to be filtered, and will do this. I haven't mentioned that because I am concentrating on the potentially harmful extraction side for the sake of safety - that's my primary concern. If it offends you that I can't spend £800 per week on extraction then I'm sorry to hear that but understand if you no longer want to contribute.

For anyone who is interested:

Those filters I linked are adequate for the extracted air - mounted in the booth, ahead of the extraction fan(s).

I'll construct the spray room out of stud work and clear polythene sheet, so that it can be dismantled when I'm done. I'll have 4 inlet points (2 top, 2 bottom-ish) on one wall with filters and one large outlet point on the opposite wall with filters, then duct the extracted air out the workshop. I can then blank off portions of the inlet openings as necessary to reduce flow and maintain a slight negative pressure vs. the outside.

I'll rent a small compressor to feed my air mask, and run my spray gun off the large workshop compressor. Once it's all built I'll smoke test for leaks & clearance time.

I'll stick details of the build in my project thread, for anyone who wants to follow things from here.

[benters]

As before good luck with the spray set up, i can see from your other thread that you clearly want to do things right and do them once, perhaps a little got lost in translation, that's all.
So what's the colour going to be ? Miami Blue ??

[CamMoreRon]

Cheers sausage. I'm going to paint it motorsport white! Some kind of frozen white I think. The frame will be powder coated satin black and have aluminium panels between all the tubes, which should be a pretty nice contrast. Then most components anodised / powder coated black, with a few gold bits here & there for some motorsport bling.