You need an 'etch' primer for alluminium. Also called a 'special metals' primer.
Etch primers contain a small amount of phosphoric acid which forms a physical and chemical bond.
You can get 2 pack etch primers.
I haven't heard of Novol products and don't know if those in your picture contain phosphporic acid or not.
I looked it up on Google and the Novol Protect 340 is an etch primer ....
toolforce.ie
Etch primers contain a small amount of phosphoric acid which forms a physical and chemical bond.
You can get 2 pack etch primers.
I haven't heard of Novol products and don't know if those in your picture contain phosphporic acid or not.
I looked it up on Google and the Novol Protect 340 is an etch primer ....
NOVOL PROTECT 340 Acid Etch Primer Kit 2K 37211KIT
Place your order today for a NOVOL PROTECT 340 Acid Etch Primer Kit 2K 37211KIT by 2pm for fast dispatch. We deliver direct your home or business.
toolforce.ie
Last edited:
v8250
Well-Known Member
Use this, U-POL Acid#8 is an excellent all round acid etch primer. Have been using this for decades, it's never reacted with any paint nor paint enamel.
u-pol.com
and comes in larger tins
u-pol.com
ACID#8 1K Acid Etch Primer - U-Pol
Promotes paint adhesion to difficult substrates such as galvanised steel and aluminium. Ideal for rub through areas in primer prior to application of colour.
u-pol.com
and comes in larger tins
ACID#8 1K Acid Etch Primer - U-Pol
ACID#8 is a fast drying primer to help paint adhere to difficult substrates. Ideal for rub throughs in primer prior to application of colour on new bare metal panels. Also available in 450ml aerosol.
u-pol.com
IDK...
Member
Hello.You need an 'etch' primer for alluminium. Also called a 'special metals' primer.
Etch primers contain a small amount of phosphoric acid which forms a physical and chemical bond.
You can get 2 pack etch primers.
I haven't heard of Novol products and don't know if those in your picture contain phosphporic acid or not.
I looked it up on Google and the Novol Protect 340 is an etch primer ....
NOVOL PROTECT 340 Acid Etch Primer Kit 2K 37211KIT
Place your order today for a NOVOL PROTECT 340 Acid Etch Primer Kit 2K 37211KIT by 2pm for fast dispatch. We deliver direct your home or business.
I was at the auto shop and they were the two he was recommended to use and he also recommended to use 1k #8acid etch primer on the galvanised bulkhead.
I'm using 2k paint.
Thanks
Attachments
v8250
Well-Known Member
U-POL Acid#8 is ideal with 2k.
Have you used 2k before? If not, be very careful as 2k contains isocyanate and is highly carcinogenic. Isocyanate is readily absorbed through the lungs, eyes and skin. You must wear total PPE with no skin/eyes exposed and be 100% certain of having fresh air flow. If you do not have a fresh air fed head mask use Gerson 2k masks + 100% eye cover + head cover. Best to wear all over overalls with hoods. Even if your just spraying a small area you must fully cover up with 2k.
IDK...
Member
Is it ok to use on the outside and is it durable enough for a galvanised bulkhead and outside of the vehicle that is aluminium.Use this, U-POL Acid#8 is an excellent all round acid etch primer. Have been using this for decades, it's never reacted with any paint nor paint enamel.
ACID#8 1K Acid Etch Primer - U-Pol
Promotes paint adhesion to difficult substrates such as galvanised steel and aluminium. Ideal for rub through areas in primer prior to application of colour.
and comes in larger tins
ACID#8 1K Acid Etch Primer - U-Pol
ACID#8 is a fast drying primer to help paint adhere to difficult substrates. Ideal for rub throughs in primer prior to application of colour on new bare metal panels. Also available in 450ml aerosol.
IDK...
Member
I'm doing it in my shed so I didn't know it was that dangerous. Is the epoxy primer safer to use and does it stick to the aluminium good.
Turboman
Mab An Gov
Inside or outside. It is a primer, so just helps the topcoat stick on the metal, it doesn't have to resist the weather itself.
Special metals primer is good for all non ferrous metals, including galv.
I have never heard of that stuff either, I just use Teamac or Blackfriars on galv, not had any issues.
With new shiny galv, give it a wash with mordant solution before painting with the primer, be on the safe side.
With old galv or ali, the special metals primer will stick fine.
Turboman
Mab An Gov
Why not use Tractol enamel for topcoat? Pretty much everyone else does. Cheap, and you can brush it on, so not as hazardous as spraying, and you don't need so much kit.
IDK...
Member
Does it still need a primer even at bare aluminium. Thanks
v8250
Well-Known Member
All industrial spray paints are highly dangerous as they are spray particulates that are readily absorbed through the lungs, eyes and skin. Lacquers and 2K's are the killers and once in the system, the body, they cannot be removed. If you are not 100% sure of how to protect yourself using only the correct PPE do not do this task. Take the panel/s / Land Rover to a bodyshop who have both the right equipment and the right PPE.
Google 2k paint isocyantes risks and cancer risks. Drill down deep enough and the results are shocking.
Turboman
Mab An Gov
Etch primer, 2 coats, then Tractol, 2 coats, doubt if you will get a problem.
if you intend laning or off road use, you are going to be doing plenty of touch ups anyway, unless you are Ok with scratched bodywork.
Turboman
Mab An Gov
The boatyards that spray 2 pack wear a positive pressure respirator while they are doing it.
Most don't recommend 2 pack anyway, they think it sets very hard, and can come off in sheets.
Conventional paint and primer can chip or scratch, but is easy and safe to touch up from time to time.
IDK...
Member
Thanks for the help and it's really is appreciated.
By going with you advice I'm thinking it'll be to dangerous of me.
I've got zinc 182 rust inhibiting primer and 2k paint plus hardener will they work together or can I use the enamel and the zinc 182 rust inhibiting primer. What have you used the past prime wise.
Thanks.
Wildefalcon
Well-Known Member
Not all 2k is isocyanide paint.
dag019
Well-Known Member
I do not use 2k as I do not have the safety equipment do not have or know how to spray paint and do not have the incentive to learn. I use enamel and a brush/roller for my repaints so cannot help with any of the discussion above. However @miktdish advice regarding primer is the important part regarding primer for ali which your comments above regarding zinc 182 ignore.
^^ for bare ali you need some sort of acid etch primer before doing anything else. Zinc 182 is not an etch primer (and I would argue is designed to rust protect steel rather than ali) I have used hammarite special metal primers for my repaints, not because I have done lots of research and it is the best, but because it is easily available in all local diy stores and, from my experience using it, is perfectly adequate when top coated with a machine/tractor enamel. (for me it also has the advantage of being red which is my top coat colours which is notorious for having poor coverage and needing lots of coats). Both my 110 and series have been painted using this method about 10 years ago and again more recently for various reasons none of which were corrosion or the paint failing.
IDK...
Member
Differences Between Epoxy Primers and Self Etch Primers | Auto Repairs Direct
Both provide corrosion protection, and both can be top-coated with primer surfacer. Click here to read more.
