Phosphoric Acid to prevent rust

Posted by Ron-MI on August 25, 2022 at 21:39:46 from (47.33.247.156):

Greetings,

I got a gallon of 85% food grade phosphoric acid for rust treatment on some old ford fenders and hood off of a 640 - the sheet metal is well beat up (before I got the tractor). This is a work tractor and it will be very loved helping around the farm; my only goal is to preserve it. I wanted to test out using the phosphoric acid before I used it on a restored item so I figured this would be a great chance.

Now, Looking over the internet, I have heard many ways to use the phosphoric acid, some say use it straight up, neat without cutting it. Others say to reduce it 4 to 1 with water. Still others say to dillute it to 12 to 1. Some say to let it dry for 24 hours, others say to rinse it off in 30 minutes.

Everything on the internet is always correct, right? Well, I have found that the people on this group are very good and in the past I have gotten lots of great advice; you have not steered me wrong. So, what to do you reccomend?

I am going to prime it with Rustoleum gray primer K7781, and use the rustoleum farm & implement paint in ford gray to top coat it. I will be spraying it with a HLPV gun from harbor freight. Ackward spots may get brushed.

Replies:

• Re: Phosphoric Acid to prevent rust ss55 08:40:37 08/26/22 (0)
• Re: Phosphoric Acid to prevent rust BarnyardEngineering 06:22:34 08/26/22 (0)
• Re: Phosphoric Acid to prevent rust Hobo,NC 05:05:15 08/26/22 (0)
• Re: Phosphoric Acid to prevent rust showcrop 05:02:16 08/26/22 (0)
• Re: Phosphoric Acid to prevent rust Geo-TH,In 04:53:43 08/26/22 (0)
• Re: Phosphoric Acid to prevent rust Patsdeere 22:12:50 08/25/22 (2)
  • Re: Phosphoric Acid to prevent rust Ron-MI 22:19:08 08/25/22 (1)
    • Re: Phosphoric Acid to prevent rust Patsdeere 10:15:13 08/26/22 (0)

Add a Reply! You must be Logged In to Post Name: E-Mail: Subject: (avoid special characters) Comments: Optional Link URL: Link Title: Optional Image URL: Optional Video Title: Optional Video Embed: Advanced Posting Options Email Notification: If you check this box, email will be sent to you whenever someone replies to this message. Your email address must be entered above to receive notification. This notification will be cancelled automatically after 2 weeks. No political comments, hate speech or bigotry of any kind will be tolerated. Violations will be removed and posting privileges may be permanently revoked without notice.   Advanced Posting Tools   Select Gallery Photo  Attach Serial No List  Return to Post  Upload Photos/Videos Choose Files from your local computer Upload one or more videos to your post. Photo and video filesizes should be less than 5MB. Formats allowed are gif, jpg, png, ogg, mp4, mov, and avi. Be sure to use filenames without spaces or special characters, and filetypes of 3 digits lower case.

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 ]