Thin white board with shiny bits

[Sc67]

Hi all
Have come across this material I’m not familiar with (it’s around the edges of the opening and on the hatch

). It’s thin white board with sparkley bits in it.
Any one know what this might be?
Thanks!

 

[freddiemercurystwin]

Could be a bit of bathroom wall cladding.

 

[simplesteve]

Is it very smooth ? Or does it have a rough texture ? It looks like Hardy Cement board to me

 

[Sc67]

Thanks both. It’s not completely smooth, and there are some chunks hanging off which look a little fibrous (hence me thinking it best to see if anyone recognised the product - I wondered if it may be AIB). The sparkly bits look like mica deposits maybe, which I think supalux may have?

 

[catlad]

It's a cementitious fireproof board.

 

[Sc67]

thanks for the helpful replies. Does look like it’s there for fireproofing, so I’m thinking it may be supalux due to the shiny inclusions