Evapo-Rust Experience (Pic Heavy)

[jameslovesjammie]

I read on the forum of some folks using a product called Evapo-Rust to get rust out of their moulds. I have a problem with one mould in particular, so I decided to give it a try.

Since North Dakota isn't exactly known as a humid environment, I typically cast in my shed and let the moulds cool down on their own overnight, recovering them the next day. This has worked for me with Saeco, Modern Bond, Ideal, Lyman, RCBS, and Cramer moulds. I have never had an issue. In October 2008, I purchased a new Lyman 4 cavity mould (Cut Aug 08). From the first time I used it, the mould flash rusted but the cavities remained in good shape.

When I checked the mould a few days ago, I noticed some rust in the cavities. I decided to give Evapo-Rust a try. I am almost ashamed to post these before pictures.

Both Blocks



I decided to do the worst looking block of the two. This would give me (hopefully) the most drastic transformation.



The cavities of said mould.



This is the product package and the mould in question.



Using a plastic storage container from Dollar Tree, I placed the mould on the bottom and poured enough Evapo-Rust in to cover the mould by about 1/4".



The results: After 1/2 hour, this is how the mould looked. I would say that 90% of the block was amazing. However, I still had a slight rusting on the exterior of the mould and the cavitites still had a little rust. I rolled the it over and placed it back in the solution.



So I left the mould in the solution overnight. This is how I just took it out.





But the real success was in the cavities. The block looks amazing. I can't see any pitting at all.



This is how the worst looking block turned out. It looks fantastic.



After taking the pic, I put the other block, sprue plate, and hardware in the solution. I coated the first block with Kroil.

From my experience, I would absolutely recommend this product. I believe it cost around $7.00 at O'Reiley's Auto Parts. Use was absolutely simple: Put the product in the solution overnight, rinse the next day, and coat in oil. Doesn't get much simpler than that.

[jameslovesjammie]

Forgot to add this pic of the back sides of the moulds.

[Southern Son]

Are you going to blue the mould to (hopefully) stop it rusting again?

[Iron Mike Golf]

I did the same to some rusty molds I got at a flea market. I hit mine with some Brownell's 44/40 cold blue. I do like Evapo-Rust.

I think next time, I might try "hot plate bluing".

[zomby woof]

Very nice. Where does one find evap-o-rust?

[Iron Mike Golf]

Where I live, I can get it at Auto-Zone and Harbor Feight.

[zuke]

I'll have to see if I can find it here in Canada.

[cajun shooter]

Evapo-Rust was purchased by me about 18 months ago from Midway in a gallon bottle. The price they quote is 18.99 now and I think I paid about $12 so it has increased. If Jamie purchased it for such a low price then I would go there. You might want to check Wally World also.
I have yet found anything that it fails to work on. I purchased some old rusted tools at a garage sale and they look like new now.
I will give you a warning about this great product though. It removes bluing from guns very fast. I have a High Standard 22 magnum derringer and it had rust on the end of the barrels. I put some light wire around the grip and inserted the gun to where it was just touching. I went into the house and returned about 15 minutes later to find my gun all the way into the Evapo-Rust. When I removed it, the bluing was gone on any part that was in the chemical.
A very stupid mistake on my part as the rust that was there could have been removed with Kroil and some 0000 steel wool. I was playing with a new product and it showed me why I should not have done it.

[Dframe]

Those results look great. Gonna have to try that procuct

[thehouseproduct]

If you search Lachmiller in the reloading section, there is a thread where I did some hot blue using walmart chemicals.

[JJC]

Sounds like a good product to have on hand

[Shooter6br]

Where is the thread on hot blue ? i like cheap do it yourself projects. I have a formula on blacking used Lye and nitrogen plant fertilizer

[jameslovesjammie]

Are you going to blue the mould to (hopefully) stop it rusting again?

For now I just coated it in Kroil. I did buy a Birchwood Casey Cold Blue Kit to do the mould in but will wait to do so until I have both blocks and sprue plate done.

[jameslovesjammie]

Where is the thread on hot blue ? i like cheap do it yourself projects. I have a formula on blacking used Lye and nitrogen plant fertilizer

http://www.castboolits.gunloads.com/...ght=lachmiller

Looks like I may give this a try instead. Thanks for the tip TheHouseProduct!

[jameslovesjammie]

Evapo-Rust was purchased by me about 18 months ago from Midway in a gallon bottle. The price they quote is 18.99 now and I think I paid about $12 so it has increased. If Jamie purchased it for such a low price then I would go there. You might want to check Wally World also.

This is only a 32 oz bottle, so your gallon price is still better. I got mine at O'Reiley's Auto Parts, but I would wager you could find it at Napa too. I didn't see it at our Walmart.

[429421Cowboy]

Ok i was just forced to spend a night in my truck near Bismark last week due to the flooding causing the motels to be booked and i'd challenge anybody to tell me that it wasn't humid that night! That is an amazing product, i'll have too look onto it for general use as well.

[BigRix]

I tried Evapo-Rust on my new mold seen in this thread
http://castboolits.gunloads.com/showthread.php?t=123965
and it worked great.





The blue color returned when I started casting. I'm not sure actual Bluing would be necessary.

[lbaize3]

Thanks for the heads up, guys. Evapo-rust is now on the shopping list. Lord knows it will come in handy on this hot and humid Southeast Texas coastal area.

[Old Caster]

I wouldn't waste any time bluing the mold because as said above it will turn blue the next time it is used, however this really doesn't make it rust proof. If you want a good blue job for your pistol, use Belgian Blue from Brownells. All that is needed is a pot big enough to boil water in that will also hold the metal you want to blue. It can even be done on the stove indoors and is the same blue that was used for years for double barrel shotguns because the other type of bluing would ruin the lead solder joint that held the barrels together.

[Ziptar]

Is Evapo-Rust a phosphoric acid based rust converter?

I just stripped and painted the floor pans in my car.

I had a spots were surface rust had started from years of moisture trapped beneath the padding and carpet.

I found Kleen-Strip Prep and Etch for $16.00 a gallon at my local home depot, http://www.homedepot.com/buy/cleanin...tch-68294.html

I sprayed the stripped metal down and left it overnight.

It did an excellent job of both converting the rust and pickeling the bare steel.

Another product is called Ospho but, I've yet to find it locally though. I did read somewhere a while back that the Kleen-Strip is Ospho in a re-labelled jug.