shine
Member
since there is a holy grail thread somewhere else i thought i would bring this up. of all the things said about it the one thing never mentioned is the MOH hardness.
soda is 2.5 . my acrylic is 3.0 ,cornstarch is 2.5 , corn cob is 2.5 - 3.0 , walnut is 3.0 . something like star blast is around 7+ .
so equal damage can be done with any of them . the one difference is what is left behind. it has been claimed on another thread that soda is the only media recommended for fiberglass. not true . when i was researching before spending the money i found that several medias were recommended for glass by my composite supplier . their recommendation was acrylic type1 , cornstarch , corn cob and walnut. they however did advise against soda for fiberglass .they do sell it all. you can back up and hook onto a complete soda rig on a trailer .
since my last barrel of acrylic is getting really worn out i will switch to cornstarch for the fiberglass.
there's way more to all this than the infomercials on these web sites. a call to a good composite supplier will really be an eye opener.
soda is 2.5 . my acrylic is 3.0 ,cornstarch is 2.5 , corn cob is 2.5 - 3.0 , walnut is 3.0 . something like star blast is around 7+ .
so equal damage can be done with any of them . the one difference is what is left behind. it has been claimed on another thread that soda is the only media recommended for fiberglass. not true . when i was researching before spending the money i found that several medias were recommended for glass by my composite supplier . their recommendation was acrylic type1 , cornstarch , corn cob and walnut. they however did advise against soda for fiberglass .they do sell it all. you can back up and hook onto a complete soda rig on a trailer .
since my last barrel of acrylic is getting really worn out i will switch to cornstarch for the fiberglass.
there's way more to all this than the infomercials on these web sites. a call to a good composite supplier will really be an eye opener.