What am i best off using on bare ali ? Any perticular primer or will any be ok?

Thanks Craig.

Etch primer on degreased and wet n dried ally.

Any good supplier of etch primer?

Etch primer is the only stuff that will stick to aluminium.

I use U-Pol ACID #8 mainly because it's available from Halfords.

http://www.hex.co.uk/tds/upol/acid8.pdf

The last can (aerosol) I bought, I had to buy from a specialist paint supplier 'cos my "has everything" local motor factors didn't have any.

It was *gulp* 9 quid..

Don't be tempted to use normal primer though, the paint will just fall off alli.

quote:

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Originally posted by iank
Etch primer is the only stuff that will stick to aluminium.

I use U-Pol ACID #8 mainly because it's available from Halfords.

http://www.hex.co.uk/tds/upol/acid8.pdf

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You only need a light dusting of etch primer then normal primer will go on top of it. A can will go a long way and paint suppliers are cheaper than Halfords.

I got my etch primer for my chassis from these people and found them to be very helpful:
Fascinating Finishes Ltd.
Mayfield House.
Sculcoates Lane.
Hull. HU5 1DR.
Tel: 01482 342216. Fax: 01482 493096. E-mail: info@kpaints.co.uk

HTH

quote:

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Originally posted by CraigJ

quote:

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Originally posted by iank
Etch primer is the only stuff that will stick to aluminium.

I use U-Pol ACID #8 mainly because it's available from Halfords.

http://www.hex.co.uk/tds/upol/acid8.pdf

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Chuff me 12 quid a can

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its only for bike parts. blasted a few parts up, suspension bits etc. will etch them and just rub down the frame and prime a repaint over the existing paint.

I also use the Upol stuff. Really nice stuff on ali and I've been using the same can for ages so it's got a fair few ML in it....

Just worked out that a can is good for roughly 3m^2 of ally with 2 good coats.

What happened to zinc-chromate used in the aircraft industry?