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Posted: Sat Aug 05, 2006 12:10 pm
I have aquired some lovely chain
However, its so shiny its painful - any ideas how to darken it? I've heard tell of soaking in vinegar, but would like some more information before anything is tried.
Posted: Sat Aug 05, 2006 12:54 pm
Vinegar CAN work, but spraying it is quicker !! use a car body primer, you'll need to do it a few times and 'jiggle' it around so as to cover the whole rings ............. and it sticks !!!!!!!!!!!! is the stuff you've just got galvanised ?? if not you could WD40 it then blowlamp over it to burn it on, lots of different ways dependant on the finish you have on the new stuff.
Posted: Sat Aug 05, 2006 1:22 pm
If it's galvanised then get a nice hot fire and bung it in the middle to burn of the coating- sit upwind and make sure noone else is around as the fumes'll be extremely toxic!!!
Try it with a small sample first to be sure.
Posted: Sat Aug 05, 2006 9:49 pm
Aaaargh, don't, for gods sake, burn the zinc off, even sitting upwind, it's really risky!!
Not fun, in the least!!: http://www.anvilfire.com/iForge/tutor/safety3/index.htm
Posted: Sat Aug 05, 2006 10:20 pm
OK- if you don't want to live dangerously then you can take it to the nearest metal coater/dip n' strip place and they should be able to do the job for you in a couple of minutes with a big tank of acid.
Posted: Sat Aug 05, 2006 10:57 pm
Not a case of not wanting to live dangerously, it's a case of not seriously f*****g yourself up.
Posted: Tue Aug 08, 2006 2:31 pm
Thanks Thomas, really cheered me up
From a previous posting, I learned of the risks. So acetylene/propane blow-lamped the lot off out doors & frequently quenched it to get the spall off.
Well ..... I am still here. Next time NBC mask!
Actually, I am quite glad that the zinc is off. I new perceive that there could be a risk of Zn absorbance through the skin. Eg. Sweaty maile + open skin pores in hot weather ---- especially if the maile is old.
How about a sticky Hazards thread
? This aspect is bound to crop up again. And I learned yesterday of the lead poisoning risks from cooking in Bronze cauldrons ( a manufacturer's web site ). Lets let people know, rather than saying sorry they are not posting any more.
Posted: Tue Aug 08, 2006 2:38 pm
Not supposed to be a fun read, though
Posted: Tue Aug 08, 2006 3:43 pm
Agreed. Thats my point. A very sad case. Knowledge I think we need to share.
Posted: Wed Aug 09, 2006 12:07 pm
Apparently the alternative to burning the zinc off it to put your galvanised mail into a cement moixer with a couple of shovels of dry sand, then tumble it for a while - no idea how you dispose of zinc contaminated sand thereafter though - probably not a good idea to put it back into the kid's sand pit!!!
Posted: Wed Aug 09, 2006 1:03 pm
m300572 wrote:Apparently the alternative to burning the zinc off it to put your galvanised mail into a cement moixer with a couple of shovels of dry sand, then tumble it for a while - no idea how you dispose of zinc contaminated sand thereafter though - probably not a good idea to put it back into the kid's sand pit!!!
Except make sure it's a mixer with the internal fins taken out, or you end up with a heap of clean wire shrapnel... (Supposedly, never done it myself)