Can you use sand to thicken EPOXY?

[PAR]

Teddy, SuenoesAzules qualified this reply with a more descriptive post later in the thread.

[pauloman]

sand isn't a thickener, which was the original question. It is a filler. Add sand to epoxy and it sinks to the bottom, rather than mixing in and thickening epoxy.

That said it is commonly added to epoxy to fill cracks, potholes, bilge void spaces, airport runway cuts, fix broken cement step edges, as a chocking compound under large/heavy machinery, etc. Recently used sand and gravel mixed into epoxy to fix 100 year old rotten wooden marine railway located 12 ft underwater.


Works well as a heat sink (very important in large epoxy patching projects) and when you add lots of sand to epoxy you get something you can hit with a sledge hammer and nothing happens.


paul
progressive epoxy polymers

[cyclops2]

I NEVER thought sand was this controversal.

But then I only have 1 eye to see the facts.

[tunnels]

Originally Posted by Leon01323

Thanks frosty,

The thickness i would need it would be need to be able to stick on a vertical surface of a mould and not slump down. Ive got some talc on order so will have a play around and may leave it to firm up a bit like you said.
Thanks

Quickest way to stop the slump is use aerosill Thats what is for !! to thicken !! Semi jellyfied stop droop !!
So if you have droop use aerosill !!

[hoytedow]

Originally Posted by cyclops2

I NEVER thought sand was this controversal.

But then I only have 1 eye to see the facts.

Me too.