Soda alternative ?

[W.olly]

I am on the look out for good priced Soda and found Frost at £32 fro 25kg best upto now to blast a GRP boat and i have come by this stuff.

Sounds ok but then is it?

Has anyone used it on GRP or other similar materials.

http://www.ebay.co.uk/itm/SHOT-SAND...880456?hash=item3cc6c5a948:g:AfgAAOxyJmhSDkeP

 

[W.olly]

This seams cheap when they sell it at less than £30 25kg

1000kg at £235

http://www.ebay.co.uk/itm/1000KG-EC...DA-BLASTING-/252427167561?hash=item3ac5d4e749