Bolt plating question. Help please.

Anonymous · Post by **Anonymous** » Tue Feb 05, 08 7:28 pm

Right, I have cleaned tons of bolds n nuts on the wire wheel, and I want them back to the look they had at the facotry which I think, is black phosphate coated.

I dont want to plate them but notice Trimite advertise a 'paint' called Kephos 1096 which is a black phosphate coating.

Question is, where can I get Kephos 1096 from as I can't find a stockist on the web, and, do you guys know an alternative bearing in mind the finish I am trying to replicate.

Many thanks

C

Anonymous · Post by **Anonymous** » Tue Feb 05, 08 10:55 pm

Look on the Frosts website, they have a whole bunch of different home plating kits you can get for different finishes.

Anonymous · Post by **Anonymous** » Tue Feb 05, 08 11:09 pm

why don't you want to plate them?

There is a plating firm in crawley by the way, if of interest.

Anonymous · Post by **Anonymous** » Tue Feb 05, 08 11:49 pm

You have cleaned tons of BOLDS

Do you slap them like Benny Hill after

.

Anonymous · Post by **Anonymous** » Tue Feb 05, 08 11:55 pm

WillDatsun wrote:why don't you want to plate them?

There is a plating firm in crawley by the way, if of interest.

....mainly because they are all in separately labelled bags to say what came from where. If I hand them over, I bet a squigillion quid they all get mixed up. Failing that, I have totake one bag at a time. I aint doing that!

I rang a mate and have been told that Frosts do a Black phosphate spray. It isnt on their website but its an Eastwoods product. Thats the kiddie.

RobTwin · Post by **RobTwin** » Wed Feb 06, 08 12:00 am

Have you tried to contact Trimite direct? They're only in Uxbridge, Middx

Matt · Post by **Matt** » Wed Feb 06, 08 1:01 am

Trimite will deal direct - I buy from them regularly.

Anonymous · Post by **Anonymous** » Wed Feb 06, 08 1:53 am

i'd be tempted to order one of those plating kits then clivey. surely painting them.. the paint gets in the threads?

Anonymous · Post by **Anonymous** » Wed Feb 06, 08 8:15 am

Will,although its a spray, its not a spray paint. Its a phosphate spray. It does coat the thread but not like a paint. It just gets a light dusting.

I might get corrected but the idea of it is like acid etched black dye type thing.

Dave999 · Post by **Dave999** » Wed Feb 06, 08 9:09 am

phosphoric acid gets rid of the rust

Another technique for removing rust is etching with Phosphoric Acid. Phosphoric Acid has a unique property of dissolving iron oxide quickly while etching iron very slowly. This means that you can leave metal in Phosphoric Acid for much longer than necessary with very little damage. The acid will attack bare metal slowly and will start the process of hydrogen embrittlement, so use the minimum etch time that removes all rust.

Another unique advantage of Phosphoric Acid is that it leaves a fine coating of iron phosphate behind. Iron phosphate prevents rust. However, the iron phosphate coating is not very thick and not durable. Some additional protection is still required.

Phosphoric Acid etch will leave a hard, bright metal finish. This is because it will etch the surface slightly, exposing new, bare metal. Often this is desirable. It leaves an attractive surface and a surface ready to paint. A common product which contains Phosphoric Acid is Naval Jelly. The soft drink Coca-Cola contains Phosphoric Acid, so Coke will etch rust.

Iron phosphate is a black powdery type compound that clings quite well to the surface it forms on (like rust does)
nuts n bolts in storage may well have had a coating to stop rust
obvioulsy once the car is sold from the dealer rust doesn't matter any more

Dave

Anonymous · Post by **Anonymous** » Wed Feb 06, 08 9:24 am

Dave, so what are you saying mate? I want to replicate the matt black finish on me nuts n bolts! Any thoughts?

Anonymous · Post by **Anonymous** » Wed Feb 06, 08 9:51 am

Clivey,
not a straightforward process to do for the diy-er, usualy involves a multi stage process and usually expensive. Companies like Henkel and Oakite supply to the industry, but try this link for a small process set up, which will allow you to control your inventory;

http://www.black-it.co.uk/?gclid=CKf5rp ... lAodLF7cXQ

try googling "Chemical black" as well instead of phosphating.

also;
http://www.jlindustrial.co.uk/LAW-10001 ... duct.html#

http://www.knighton-tools.co.uk/acatalo ... ution.html

may help with some extra background info
http://www.black-it.co.uk/Downloads/Bla ... mation.pdf link to pics of different finishes; [ ... ISHES.html

RobTwin · Post by **RobTwin** » Wed Feb 06, 08 10:01 am

neil wrote:...try googling "Chemical black" as well instead of phosphating.

try 'chemi black' too

latil · Post by **latil** » Wed Feb 06, 08 11:03 am

I reckon the 500ml Black-It kit @ £34 will get you sorted.

This is the one I was trying to find last night.

Anonymous · Post by **Anonymous** » Wed Feb 06, 08 11:34 am

Steve, were you looking at "Black-it"? Looked pretty good. I just want to make sure the first choice is the right one.