Over in the Ford Barn the Model A guys are talking about Thermocure by Evaporust.

A few folks in other automotive forums have also said that it works very well.


Michael D from Oklahoma City says the following:

Check out my thread here on this very topic (about to do an update in the next hour or so:

https://www.fordbarn.com/forum/showthread.php?t=226656

I have Thermocure, a product of Evaporust in my block currently (about 72 hours so far). It took about 1-1/4 gallons to fill the block to the top of the water outlet. The 32 oz bottle I bought is good for up to 3 gallons, so my dilution is about double strength. It was about $19 on Amazon with free shipping.

Warning! Science ahead:

Original Evaporust (and probably their Thermocure product) works because of an ionic process called "chelation" (pronounced key-LAY-shun). Basically it bonds electrically with the rust molecules (iron oxide) -- but doesn't bother raw iron, steel or other metals.

Molasses also removes rust through a similar chelation process. It works well, but it's as slow as... well, molasses. It might take 1-2 weeks where Evaporust will probably work in a few days. (And you wouldn't want to put molasses in an engine).

I've used regular Evaporust a lot on rusty parts in the past and have had good success, and so far I'm pleased with Thermocure.

Leaving rusty metal in either one of the products for too long won't hurt anything -- once all of the rust is dissolved, the chemical process stops. You do need to flush/rinse the metal thoroughly when you're done -- but don't throw away your used Evaporust. If you let the rust settle to the bottom, you can use it again several more times until it loses its effectiveness.

Note: I'm not a scientist, but I am always curious about how things work, so I looked this up some time ago.

Hope that helps!
__________________


It looks as if it works.
Do any of you have experience with it?

Did the Evaporust on a Model A, seems to work fine. BUT! Evaporust DOES not like grease or oil, it will kill the things that attack and eat the rust. It's not really a chemical process it has emzines (I know bad spelling )that do the job that is why it can be dumped on the plants after use for a good feeding to those iron loving plants.

LOL Should I run some Dawn dish detergent thru the system before using Evaporust to remove all the oil?
It works on ducks and other wild animals!

I drained the radiator in my T today and put in 32 oz of Thermocure by Evaporust and water.
The first thing I noticed was the overflow tube is brass because it was immediately cleaned.
Next I ran the motor to heat things up and will let it sit until next weekend.
Updates will follow

I became concerned about leaving Thermocure in the motor and radiator with an aluminum water pump for a week so I contacted Evaporust.

David Lewis responded and said, "There is no issue with leaving Thermocure in your system for any length of time. Leaving it in for a week will not hurt your system."

So I am safe until next weekend!

I have had good work with Evaporust. I stopped using it as in here in New Zealand it is very very expensive.......

Some importer is making a good profit somewhere. But then again if it is so expensive no one buys it then who profits from what?

Fred, yes it's a good idea to run some Dawn or Calgon auto dish washing soap to dissolve any oils in the system. I used CLR in my T several times in 5 years . After cleaning with dish soap rinse well and put in your rust remover of your choice. With CLR I left it in overnight. Drained and flushed with fresh water ,then coolant of your choice.

If you could import evaporust to NZ in 44 gallon drums and bottle it for resale you might be able to retail it for viable price.

Might not be a bad idea kep, I would also need to meet all out "epa" rules over here - which are silly to nuts in their scope.... The evaporust may be a dangerous chemical that could kill all life for 10 miles around - you never know !

LOL.
Evaporust is supposed to be environmentally safe!

If you have iron loving plants you can use the iron infused liquid on them after you clean your motor and radiator.

I don't think I would drink it like some claim to do with MMO.

I drained the Evaporust Thermocure from the T radiator this AM.
It had been soaking for a week and was black like the car.
Really black so it must have done something!
I then flushed the system with water a couple times and filled it with 50/50 antifreeze.

I was going to use it in the Model A next but because it is so black there will be no hand-me-downs for the younger sister.
I will get another jug for that project.

I'll let folks know if it helped the T

So if it works by converting rust on iron, I assume it does nothing to brass or aluminum????

The guy at Evaporust said that it would be OK with aluminum.
I suspect you are right about brass etc.
It just eats rust - iron oxide.

Evaporust works great I ran it in my 29 model A and it did a great job. I left it in the cooling system for 14 days and then drained it and added coolant.. No problems.

There are plenty of threads about Evaporust, molasses, and Vinegar on here but I've only done this on disassembled parts as it's not supposed to attack other metals. I would be concerned about doing this on a complete engine because of 1) the seals and 2) leftover residue in the bearings and bushings. I hope that's not the way this went down as it wasn't perfectly clear.
Vern

There are many stories of it being used on complete motors on automotive sites.


Although we are saying Everrust I am using Thermocure by Everrust. It seems to have Everrust with a bit of soap to cut any grease or oil in the system. It doesn't get near the bearings and bushings and does not attack anything except iron oxide

Fred, I think you meant to say "evaporust".

Everrust is what we are trying to eliminate, lol.

Lol. Spell checker makes me say something I didn't mean.