Anhydrite / gypsum dust

[Flintstone]

does anyone know if it contains silica in any volume ?

 

[Ajax123]

Gypsum and anhydrite contain no silica at all. The sand used to make the screed may contain small amounts i guess but not in great volumes. I would always recomend wearing a dust mask when sanding the surface of any material thag may create airborne dust though. Why do you ask?

 

[Flintstone]

Cheers Alan. I just have one to sand in January, wondered about m class dust extraction for hand held grinder thats all.

 

[GoneGuy]

I would recommend a p3 dust mask for you to wear to be on the safe side.

 

[Flintstone]

Always wear one of them adey !

 

[GoneGuy]

Always wear one of them adey !

Best to be safe than sorry
Anything less than a p3 mask is not worth wearing.

 

[Flintstone]

I wear it for all mixing and cutting and dusty work

 

[GoneGuy]

Have you seen the waletale attachment to go on mixing buckets? The Americans love them

 

[Flintstone]

Yeah I have seen them, been around a while, good in theory but means getting out your vac every time. I mix outside most of the time

 

[GoneGuy]

Same here I mix outside all the time, I’m thinking of getting one as my pop up tent got destroyed the other week and it would be cheaper/quick fix for now