I'm in costruction , so using a caulk line often, and need refill. I keep a couple plastic bottles around, not expensive.
It mixes well, with epoxy, goes on smooth, applies and stays a very even color. So far only RED & BLUE, might be other colors out there somewhere

Dave von Doehren
PRRODS......If man built it , man can fix it.and if man built it man can break it !

The blue chalk in mine is kinda flat in color; how does it look in the marble? Haven't ever seen it in red...

Putter
Williston, ND

Hmmm..........Pretty sure there is yellow chalk too.......that should mean that purple, green, and orange are available with a little mixing

Kirk, I can hear the gears spinnin' from way up here in the frozen tundra; settle down, big fella!!

No need to mix for orange. I had it before in my chalk lines!

What about clumping? I know that can be a problem mixing powder into epoxy.

Frozen Tundra?........Where are you at Putter?

North Dakota; right by Montana and Saskatchewan.

Yikes that sounds like frozen tundra to me.....lol Alaska here, the frozen tundra comment made me wonder if you were somewhere in Alaska. I am originally from Montana and idaho though, and just applied for a job in Billings so I may be back that way someday.

I'm from Montana originally, too. Gerry Rhoades is in Billings; good friend, fellow rod builder...