paint

[Seaking]

just had a offer to respraymy stag in two pack question my car is sprayed in celly can it be sprayed over or has it to be stripped back to metal again

[Frank G]

I believe that all that's required is a coat of isolator, to ensure that the new paint doesn't react with the old paint.
I had my (dare I say this on this forum!!) MGB GT repainted in 2 pack and it didn't need to go back to bare metal.
I hope this helps.
Cheers,
Frank

[V Mad]

The problem with painting over old paint is that, unless you know what is underneath (damp, rust, filler, etc) your investment in a repaint may be wasted if it breaks out later. At least if you bare metal it, the painter can make sure the base is sound before paint is applied. If you have had the car for years, and the paint is still sound then the risk is much lower.

[Giles]

My father has had his car done in 2 pack over celly it can be done. l would speak to the paint suppliers re a barrier coat though.

[Seaking]

It was stripped to bare metal before i brought it .i do have the photos but the paint job was just not that good.

[Jeff]

I've just used 1k primer (£15 per litre) mixed with cellulose thinners and sprayed over old cellulose that is sound and very pleased with results. A while before I spray with cellulose top coat though.

£47 per litre for 1k plus cost of clear top coat compared to £10 for cellulose is a no brainer for me and my supplier has loads.

[deanoed]

Hello 2k can be sprayed over celly as it has very little thinners in it it's mixed mostly with hardner so very rarely reacts

[Jeff]

Hello 2k can be sprayed over celly as it has very little thinners in it it's mixed mostly with hardner so very rarely reacts

Your right, I was surprised the 1k primer was 25% thinners unlike celly at 50%. Jeff.

[Jeff]

BUT, is the paint/primer thinner to start with? A bit like Dulux emulsion and a cheaper brand.

50/50 mix with 1 litre of celly provides 2 litres of sprayable paint compared to 1 litre acrylic giving 1.25 litres sprayable paint and it's dearer.

[Rubce]

I sprayed our GT6 with 2k over the original cellulose and there has been no reaction after two years.

Cheers

Bruce