Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Attention Forum Users: On the 28th of December 2023 at 9:00am Central Time, we will be taking the forums down for maintenance while we prepare the new forums for your use. Please click here for more information.

Prepping aluminum for painting

ANY SUGGESTIONS ???

Welcome Guest, Log in or Register
Author 
Alberta Mike

03-01-2001 16:59:44




Report to Moderator

I have made some panels out of sheet aluminum for one of my tractors. Is there anything different or special about prepping or preparing aluminum before painting? Also, is there any special primer that is used? I am just using ordinary machinery enamel for the finished product.




[Log in to Reply]   [No Email]
Al English

03-01-2001 18:21:29




Report to Moderator
 Re: Prepping aluminum for painting - ANY SUGGESTIONS ??? in reply to Alberta Mike, 03-01-2001 16:59:44  
Hi Mike, For best adhesion aluminum should be cleaned with phosphoric acid prior to painting(Alumi-Prep is a popular brand). It will be available from an automotive or industrial paint supplier. If you really want to do the job, a follow-up with chromic acid(Alodine is a popular brand) leaves the surface less corrosion proned(and yellow). Use a zinc-chromate primer. I like the "DP" series of epoxy primers from PPG, or the "Variprime" etching epoxy primer form Dupont. For most jobs I use the Dupont on aluminum, but both of these prmers are outstanding. The self etch is good, but it does not eliminate the need for acid cleaning. You can paint over either one of these primers with any kind of paint you're likely to find. Read the directions, DON'T BREATH IT, and don't get it on you. If you wait too long after priming you will have to sand before painting, otherwise no special tricks. If you decide you'd rather not mess with epoxy primer, you are still looking for a zinc-chromate primer. Good luck...Al English

[Log in to Reply]  [No Email]
Nathan(GA)

03-01-2001 20:21:21




Report to Moderator
 Re: Re: Prepping aluminum for painting - ANY SUGGESTIONS ??? in reply to Al English, 03-01-2001 18:21:29  
Hey Al, I hate to change the material here, but do you know anything about painting plastic? I primed and painted some plastic martin gourds with spray can paint. It didn't stay on a year.

The gourds let too much light in, so the paint is just a cover to block the sun. The martins prefer it dark or cool.

I've got some that my Uncle gave me that he painted several years ago. They still have paint on them, but he doesn't remember what kind it was.

Thanks, Nathan

[Log in to Reply]  [No Email]
Al English

03-01-2001 20:54:33




Report to Moderator
 Re: Re: Re: Prepping aluminum for painting - ANY SUGGESTIONS ??? in reply to Nathan(GA), 03-01-2001 20:21:21  
Hi Nathan, There are special primers for plastic. They don't work on all types of plastic, but if your gourds were originally painted, we can assume they are made of paintable plastic. Once the parts are primed, you can put whatever type of paint you want over it. I've tried a couple of hardware store type spray cans of plastic primer, but the one I use comes from an auto paint store. The auto paint store stuff is MUCH better. It's been a while since I bought any, and I can't remember the name of it. I know it is available in both bulk and in spray cans. I think I still have part of a quart so I'll check & let you know what it's called. If nothing else it will give you a place to start. When going to the auto paint store make it clear you are not priming flexible bumper covers. The product you want is made for priming plastic interior trim parts. Also, it helps to scuff up the surface with a fine scotch-brite pad before priming. Some plastics just don't hold paint very well, but hopefully yours will. Good luck...Al English

[Log in to Reply]  [No Email]
Al English

03-02-2001 18:09:14




Report to Moderator
 Re: Re: Re: Re: Prepping aluminum for painting - ANY SUGGESTIONS ??? in reply to Al English, 03-01-2001 20:54:33  
Hey Nathan, I got the info on the plastic primer. It is made by Dupont and the product number is 2322S. Paint can be applied directly over it. Unless you're going to use the highest grades of epoxy or urethane enamel, paint durability will vary from color to color. Automotive paint would be the most durable. Dupli-Color spray isn't as good as bulk paint, but it's pretty good. Krylon holds up for several years outside. Rustoleum doesn't seem to last quite as long. The only thing that could be a problem is if your plastic is one that can't be painted. Hope this works out. If you need misquotes for your Martins to eat, I'd be happy to send you some...Al English

[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


TRACTOR PARTS TRACTOR MANUALS
We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums


Copyright © 1997-2023 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy