Whiting?

Limestone is calcium carbonate.

Mike

Yup, crush up a bunch of TUMS, same stuff, purity may be different, thats why you don't get heartburn while cementing a window.

the stuff they make lines on football fields with is whiting, i believe. read the label to make sure.

Tip of the day.... try fine saw dust

Hi Liam I once worked in the glass trade and what you refer to as whiting we used, Zedox its a form of very fine powder, It was also called jewlers rouge. We used to mix it with water and apply it to a soft wheel made of felt and move the glass over the wheel to polish the surface of the glass, I hope this has been of some help.

Paul.......

Hi Liam Its Paul again i found this old container with a mineral company that we used to use they supplied us with very fine powers but its been a few years as i dont do any glass at all now, its, SOHIO ELECTRO MINERALS COMPANY (UK) LTD Mosley Road, Trafford Park, Manchester, England, M17 1NR The phone number 061 848 0276 I dont know if it is still usable. any way good luck

Paul......

must the same name for 2 different things. This is powdered calcium carbinate. Mixed with boiled linseed oil, and terpentine, it makes the putty that makes stained glass windows stiff, and waterproof.

Thanks Liam

I bought a 50 pound bag of Snowhite 21 last year, it'll do me for a couple of centuries. Contact Omya for your nearest dealer:

tinnitus, custom compensated bridges, tabs, stained glass:

**may your moments of need be met by moments of compassion**

Actually, it's "calcium carbonate". Call your local park department and ask them where they buy the "chalk" they use to line the athletic fields. I get 50# bags of the stuff for $3.00. You go into a SG store and they want that much for a Ziplock bag full.

I know this will probably set "somebody" off, but the formula I use for putty includes plaster. Playing with the ratios of turps and linseed oil will adjust how fast the stuff will set up. IF you are in a real hurry, add some Japan Dryer for even faster set-up.

Try a woodworker's shop - Liberon (a big vendor of finishing products) sell it. More expensive than football field marking, but you know the grinding and sieving has been careful.

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