UPol 0741V ACID/AL UP Acid 8-S Etch Primer Grey, 450 ml

Perfect for an aluminium threshold trim prior to painting with a top coat.

Love this stuff and use it for bare steel as it really bonds to the panel. Best to wear a mask though as it’s quite toxic so get a good filtered mask not a rubber gimp type with a tube.

I use to run my own body repair shop and used the Zink Primer when spot welding new panels on , then after Tickling the area with fine rubbing down paper I'd give it a coat of this Upol Acid 8 Etch, you can put a high build primer over it like on a wheel Arch etc to let flat down smooth etc, but in enclosed areas like the Front Pannel or Battery box etc, you can just paint straight over it, works well with most Airosol paint cans, ( except cheap ones with Paint added to Thinners? ) so get a good quality paint can or it could affect the primer . You can get Plastic cleaner and Adhesion Promotors for Plastics ?I've used them all and never had an issue, for large areas you can get a Trigger Handle to fit the top of paint cans instead of finger on the Nozzle, this gives better control like a Proper body shop paint spray gun. If your doing a Petrol flap or spoiler id recommend using the Cleaner and Adhesion Promoter. BEWARE THERE ARE LOTS OF SPRAY CAN PRIMMER PRODUCTS AND MULTI PURCHASE DEALS, but always check if they are ACID PRIMER.most of them are just High Build primer.for a thick undercoat to flat down smooth to hide any discrepancies, Upol have a Wide Range to Choose From for all sorts of needs.

when restoring a vintage truck i found that a previous owner had chome plated some parts which should have been painted. having previously used u-pol products i thought i would try this one. i rubbed down and cleaned the parts as best as possible then sprayed the etch primer. later i finished with the acrylic top coat. some time has passed and all seems ok. very happy and would suggest that if you have a "difficult " surface to paint try it.

Used this for a few years...just a light coat of it then when dry cover with normal primer before preparing for topcoat. Won't flake. Saves the agro of mixing etch in a spraygun.

Very good undercoat for my alloy trailerVery happy

Dose exactly what it said on the tin

Works great

Tiene una buena base cuando la aplicas la verdad, muy buena calidad

Works great on diamond plate, before I raptor lined my homemade camper trailer you can really cratch at the primer once dried and it seems to really get a good bite to the aluminum. I did run out of cans and opted to buy a can of home depots self etching auto primer and you for sure would have to rough up and clean the surface as that does not at all self etch compared to this (speaking about alm diamond plate, I did use Home Depot’s when priming my Tahoe to raptor line and that did work great in that application but for aluminum I’d go with this.) but I was on a time frame but all in all seems to be a 5 star item tad pricey but if it works and I only have to do it once.. I’m happy with that. If I were doing anything other then aluminum I’d probably go with Home Depot as it has worked on plastic wood and everything else I’ve put it on and is half price.

Holds paint to bare metal great only thing is i found for 10.00 less down the street at Au tozone . Amazon is way too expensive for everything im finding . In the end i saved 30.00 on 3 more cans and didn't need to wait half a week while it was shipped all over the world.

Works great on aluminum.

Happy with the UPol products but cheaper in store.