Topic: Evaporust is voodoo

[KevinK]

I tried Evaporust but it didn't seem to work well for me  Probably due to the condition of my parts.  I recently started using CLR with good results.  It does seem to remove or affect some types of plating especially the yellow ones.  I'm working with cleaning up things on my 89 as I just had it painted.

Here is the before an after pictures of the upper bumper cover bracket.  The new repro replacements were too different so I used the original ones.

[petersixtfive]

This is a good article from a tool group here in Australia
Worth reading to get a better understanding of the citric acid rust removal process
Then make your own mind up.

http://www.tttg.org.au/Content/TTTG%20Citric%20Acid%20Rust%20Removal%20Instructions.pdf

[HDAshmore]

Bob,

I haven't got it down to a science.  I've used 5 gallon home Depot buckets with two cups powder and de-rusted front spindles, brake caliper assemblies, backing shields, all the bolts and hardware and now I've got two upper control arms in the same solution after those parts. I basically spray parts with degreaser, take to carwash and power wash, then in the bucket they go.  Sit overnight, scrub with scratchpad, rinse, dry, put on protector then ready to store for future restoration steps.  It won't affect paint, but does cut grease and grime along with rust.  I did my whole rear end housing in a 42 gallon trash can and @ 4 cups of powder.  Came out amazing and didn't have to worry about chemical hazards of other products. 

Hope that somewhat helps.
Dan in Kansas

[Bob Gaines]

Bob,

I haven't got it down to a science.  I've used 5 gallon home Depot buckets with two cups powder and de-rusted front spindles, brake caliper assemblies, backing shields, all the bolts and hardware and now I've got two upper control arms in the same solution after those parts. I basically spray parts with degreaser, take to carwash and power wash, then in the bucket they go.  Sit overnight, scrub with scratchpad, rinse, dry, put on protector then ready to store for future restoration steps.  It won't affect paint, but does cut grease and grime along with rust.  I did my whole rear end housing in a 42 gallon trash can and @ 4 cups of powder.  Came out amazing and didn't have to worry about chemical hazards of other products. 

Hope that somewhat helps.
Dan in Kansas

Thanks Dan. I have some 2 piece brake rotors I want to try it out on to de rust before trying to turn them..

[CharlesTurner]

Most of parts that I soak in evaporust will either get blasted and tumbled or be painted later.  Fasteners are soaked also, but those are usually going to be zinc plated or phosphated.  It's very rare to soak something in evaporust and use it as-is (with a protectant).  My main use is a time saver in the blasting process and to uncover paint marks/details that might not show up under general cleaning.

[dkknab]

Can rusty brake drums with hubs staked be soaked in evaporust to clean them up of rust? Got some from a salvage yard that aren't too bad, just need some help.

[CharlesTurner]

Can rusty brake drums with hubs staked be soaked in evaporust to clean them up of rust? Got some from a salvage yard that aren't too bad, just need some help.

Yes, but it would likely take a couple gallons and evaporust has gotten very pricey these days.  I'm using a product called rust911, which comes as a concentrate and can be mixed to make 55 gallons for about $250.  I actually prefer the rust911 product now, it doesn't turn cad parts yellow like evaporust and seems to be a little less harsh on parts as far as removing platings and such.