Limestone for filler?

[funbun]

I have a bunch of dolomite limestone that I use in my garden as fertilizer. Since it's pulverized stone couldn't it be used as a filler material? It might not be easy to sand down, but I bet it's strong! I also have plenty of cottonseed meal, gypsum (lime with sulfer) and bone meal. Could any of these be used as filler?

 

[Steve]

personally, I wouldn't but that's just me. . . but it is possible I suppose. . . . I think I'd go with some regular baking flour. . . . . or talcum powder, if I were going to use stuff from around the house. . . but then again that just me. . . . .

 

[Jimmy W]

I have read of people using it along with talc. See: http://www.angelfire.com/nc3/davecarnell/epoxy.html
Personally, I agree with Steve. Wood flour is cheap, easy to get and would sand easier.

 

[funbun]

For that matter the cotton seed meal would do just fine because I have a 50 lb bag of the stuff. I may do a combination of cottonseed meal and limestone. I'd probably have to filter the cotton seed meal. With all this stuff I have around the house, I don't see a need to buy filler.

 

[tx river rat]

Cotton seed meal or bone mill should have too much oil in it epoxy doesnt like oil at all.
Ron

 

[oldsparkey]

Try a test batch before putting it in the boat.

Chuck.

 

[funbun]

Try a test batch before putting it in the boat.

Chuck.

Good idea! :lol: