[TowerTalk] Ospho & Cold Galv

[Justin Whitstine]

There is another rust eating product you may not be aware of called Enrust.  I've used it several times with great results.  It's similar to Ospho, but it's not acidic or caustic.  Looks like milk.  You just brush or put in a spray on windex type containter and spray it onto your material.  Where it touches rust it will turn black from a chemical reaction.  Where it doesn't touch rust it will stay white and just kind of drip down. 

This worked great on an old lawn mower deck I have and more industrial type things like farm equipment.  I used it on my truck where it had some rust spots from getting hit with acid at a refinery.  It worked great on the rust spots, but overall it didn't work out so great with the clear coat.  I have a white trush and it left a rust colored area over the clear coat.  Mainly because I reused the same brush from my lawnmower.  Live and learn.  After all your supposed to paint over it, so it shouldn't matter.

Here are some usage tips: don't get it on your hands, they will turn black and you can't scrub it off.  You just have to wait for the skin to wear off.  Only use a brush once, once you've finished for the day, throw it away.  Don't dip a brush into your main container.  Pour the Enrust you plan to use in it's own container and dip your brush into that.  Your brush will bring small amounts of rust into what you're dipping it into and contaminate it.  You don't want to contaminate the entire container.  That's why spraying it on works so well.  When your done just paint over it.

I purchase it locally at a commercial automotive paint store.  I covered my entire old craftsman lawn mower with about 6 fl oz.  

http://www.napasco.com/enrustreat.htm

http://www.mardonsalesllc.com/enrust



> From: patrick_g at windstream.net
> To: towertalk at contesting.com
> Date: Mon, 11 Feb 2013 06:33:02 -0600
> Subject: Re: [TowerTalk] Ospho & Cold Galv
> 
> I have been very successful using Rustoleum brand hammertone finish paint, 
> the one that goes on over light rust and converts it such that it is 
> harmless.  I painted rusted steel square tubes that are the 10 ft columns 
> holding up my back porch with it 8 years ago that still looks freshly done. 
> It is available in spray cans, quarts, and gallons but gallons are special 
> order at Lowes.  Just brush, pressure wash, or otherwise remove any heavy 
> flaky rust and get the substrate clean for painting. No primer is needed or 
> desired. Rust that is not loose or flaky need not be removed.  My source, 
> Lowes, stocks quarts only in silver and in black but I have found green in 
> spray cans at Ace. Some other tints are possible using the silver as the 
> base. I got a nice light green that way.
> 
> I used a precursor to this product, a rust "curing" primer also by 
> Rustoleum, (same chemistry as the paint) to prime the keel bolts/nuts in the 
> bilge of my live aboard sailboat where they were exposed to contact with 
> salt water and was amazed at how well it prevented subsequent rust/corrosion 
> for many years. They stayed rust free for over 10 years and I sold the boat 
> to a friend who had it for 5 years with no rusting before he sold the boat 
> and it was sailed away so we don't know just how long the coating would hold 
> up exposed to salt water.
> 
> My columns are painted black.  I have a barricade/guard rail made of 4 inch 
> pipe between my guest parking area and two heat pump outside units.  The 
> pipe is painted silver and seems to be holding up but I don't have as many 
> years track record on the silver yet, just 4 years but so far so rood, still 
> looks new.
> 
> I currently have a used tilt over crank up tower on saw horses being prepped 
> to be painted with this product.  I fully expect excellent results.
> 
> I have also used cold galvanize with acceptable results. I prefer the cold 
> galvanize for anchors and their chains.
> 
> As always, YMMV!
> 
> 73,
> Patrick AF5CK
> 
> -----Original Message----- 
> From: Jack Berry
> Sent: Thursday, February 07, 2013 9:31 AM
> To: towertalk at contesting.com
> Subject: [TowerTalk] Ospho & Cold Galv
> 
> Does anyone have experience with wiping down rust with Ospho and then 
> spraying on cold galvanizing?
> 
> I have used cold galv paint on brushed and cleaned tower rust. That seems to 
> hold up pretty well.
> Using Ospho type products to prep the steel sounds like a good idea but I'm 
> looking for success stories before I try.
> 
> Thanks!
> Jack - WE5ST
> _______________________________________________
> 
> 
> 
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk 
> 
> _______________________________________________
> 
> 
> 
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk