44 replies to this topic

[claysummers]

A few days in 10:1 molasses brought these up nice. They mainly just had light surface rust after citric acid soak. Seems a good way to go. Citric acid up to 7 days, then scrub or gerney and put in molasses a few days. It doesn't t seem to suffer from flash rusting.

The citric does better getting off old enamel, it is quicker, but flash rust is the problem.

early Holden nut

[bat 53]

did the same clay 

then painted with por15 heat proof and put in the bbq for an hour

[claysummers]

Think I might get them professionally ceramic coated bat. Looks like chrome, cheaper and doesn't go blue.

early Holden nut

[claysummers]

Here is how they came out

early Holden nut

[claysummers]

It wasn't that cheap at $220. What is these days.

Talk about covid tax. Today I got another bag of citric acid crystal. The price has doubled since last time, apparently due to current freight debacle.

early Holden nut

[Ddstoys]

Here is how they came out

early Holden nut

Sorry am I reading that right? These are ceramic coated??


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[claysummers]

Si, correcto.


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[V-SLR5000-P]

At least molasses is cheap, $35 for 20 litre tub a couple of months ago. It is getting harder to find in quantity and l got mine from a stock and feed store in country Vic. Evidently cows eat it, no rust in a cow's guts.

[Ice]

Clay they look like they would fit right in on the Priscilla Queen of the Desert bus 

[claysummers]

Yes they do look a bit "happy"

early Holden nut

[Ddstoys]

Si, correcto.


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they do look like chrome


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[Zook]

Evidently cows eat it, no rust in a cow's guts.

Cows love it mate. I'm not sure what happens now but in the 70s in Yallourn North while milking they used to have a big block of it to lick. Yummy.

[bat 53]

looks sweet Clay 

but after the cast look without the rust

[claysummers]

Went for the silver partly for the anti-radiant effect bat. They would be able to do a matte cast I'm fairly sure. Clear not really an option I think due to etch prime needed. Waste of effort if not etch primed first I'd say.

early Holden nut

[claysummers]

By the way Duane the manager said don't soak in molasses or citric next time. Makes the cast a bit porous and hard to paint. Just give to them and they will blast them.

I suppose you could try just let them get slight flash rust then coat with ranex. Will give them a dark iron phosphate coating. I have another set I might try this on.

early Holden nut

[dattoman]

https://por15.com/pr...=39607014424743

[sibhs]

looks sweet Clay 

but after the cast look without the rust

I've used the Por 15 Cast Iron paint. Looks genuine and has been great for 7 years. One of the best products i've used.

 

Marty

[Indy Orange]

I tried the old molasses trick , it’s been soaking a few months now , my ratio was 5:1 , I pulled this master cylinder off an old HK , I thought it was past saving , but came out a treat , I’ll get it reconditioned for a spare.

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[V-SLR5000-P]

Molasses will eat the aluminium piston in a master cylinder if you dont strip it first.

[Indy Orange]

Yeah I cleaned that up separately .