Author Topic: have I goosed my goose! (Read 1825 times)

Ba5h · « **on:** January 14, 2015, 12:36 PM »

Hi guys I have recently put my mongoose in a citric bath which worked quite well but as I only get 10 mins here and there to play bikes I took the frame out and just stood it to dry and now when I came to polish it last night it seems to have water marks that will not polish out

I think its nickel plated as doesn't have tje shine of chrome and now it has spots too

anyone had this problem or am I the only dunce in the room

oldschoolace · « **Reply #1 on:** January 14, 2015, 12:59 PM »

Would try putting it back in the CA bath as a starting point

Ba5h · « **Reply #2 on:** January 14, 2015, 01:03 PM »

I have put it back in overnight will check later

That Swan Guy · « **Reply #3 on:** January 14, 2015, 01:05 PM »

don't let it dry, get it washed off straight away with clean water and get a rag on it

Ba5h · « **Reply #4 on:** January 14, 2015, 01:21 PM »

I will defo be cleaning it off this time but if it doesnt work then I think we should add to the how to thread just soothers dont do the same

I should give myself more time to play

Ba5h · « **Reply #5 on:** January 14, 2015, 08:43 PM »

Update!!! Has made no difference I still have water spots I am gonna add some more acid and see what haopens does the effectiveness wear off???

Dannywhac · « **Reply #6 on:** January 14, 2015, 08:48 PM »

Got any pics of the 'water marks'?

insectbones · « **Reply #7 on:** January 14, 2015, 08:48 PM »

Can you put some photos up? Might help if we can see what you're seeing

Bfellows · « **Reply #8 on:** January 14, 2015, 08:58 PM »

I'll stick my chemistry head on here - if I remember correctly citric acid (C6H8O7 if you want to get tech) reacts with nickel oxide (NiO) Nickel is resistant to Citric acid, however, Nickel oxide is not.

In short, if your frame is knackered be wary that the Citric doesn't make it end up looking like its had its shiny stripped when it reacts with the NiO, removing the oxide would give the effect of removing the shininess........

I found out the hard way with a nickel plate BB and some random brake bits that lost their shine......... You can see what it did to the locking rings.

(Forgot to mention, don't use acetic acid (vineger) on nickel, or nickel alloys, it will dissolve them........)

Ba5h · « **Reply #9 on:** January 14, 2015, 09:20 PM »

Ok guys I will be back with pics in a bit

Ba5h · « **Reply #10 on:** January 14, 2015, 09:53 PM »

Sorry for rubbish pic but in the bottom of the pic is the marks before polishing and on the top is after some serious welly with the polish I just cant budge the halo

Bfellows · « **Reply #11 on:** January 14, 2015, 10:10 PM »

Try a citric bath, followed by a bath full of bicarbonate of soda to neutralise the acid - remove and rinse. Should hopefully work as the citric should remove the water spots.......

insectbones · « **Reply #12 on:** January 14, 2015, 10:17 PM »

And while its in the citric bath, give it scrub with a toothbrush, might help to shift the marks

oldschoolace · « **Reply #13 on:** January 14, 2015, 10:21 PM »

In theory if the citric acid caused they dry spots it should also remove em

would deffo give it a scrub while submerged

Ba5h · « **Reply #14 on:** January 14, 2015, 10:24 PM »

Cheers guys I will give it a go
does the effectiveness of the acid wear off should it be replaced ??

insectbones · « **Reply #15 on:** January 14, 2015, 10:27 PM »

I've had my citric bath sitting for a month or so now, still working fine

Wouldn't do any harm to stir it up though.

Ba5h · « **Reply #16 on:** January 14, 2015, 10:35 PM »

Ba5h · « **Reply #17 on:** January 15, 2015, 05:37 PM »

Its no good I still cant get rid of the halo it seems to have burnt the finish so it wont polish

insectbones · « **Reply #18 on:** January 15, 2015, 05:45 PM »

Dunno mate.

What polish are you using?

Bfellows · « **Reply #19 on:** January 15, 2015, 06:17 PM »

If the "water" marks are Nickel Oxide they will be hard - much like Nickel

and you might struggle to polish them out, much as you'd struggle to polish the Nickel off the frame by hand........ Try rubbing the affected areas with white vinegar to dissolve the oxide and then rinse it well if it works. Got to be worth a shot? I see similar with brush nickel plated taps sometimes.....

Ba5h · « **Reply #20 on:** January 15, 2015, 07:13 PM »

Ok I will give that a go im using peek polish and tin foil and antthing else I can rub with lol it is defo better once Iused foil

bobbbbsy · « **Reply #21 on:** January 15, 2015, 07:26 PM »

foil will be leaving new light scratch marks.

Ba5h · « **Reply #22 on:** January 15, 2015, 07:30 PM »

It does leave very light marks but appears the best thing to polish the marks with and then going over with clothgets most of the scratches out

bobbbbsy · « **Reply #23 on:** January 15, 2015, 07:31 PM »

powdercoat it

snoopy72 · « **Reply #24 on:** January 15, 2015, 07:38 PM »

In the pic of the bb and the cigarette box their doesn't appear to be much nickel left, more bare metal.
I know it's not cheap but maybe the only way around it is to have it re- nickel'd.