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Special Plasters

Alum

£3.00

Product Information



Alum ( aluminium sulphate) Has a variety of uses one of which is as a wash for alginate moulds prior to pouring the plaster. This reduces the powdery surface that can happen when plaster is cast in a water based mould due to surface tension. Sometimes used in the production of fake white marble. Other uses:-  As a soil additive to reduce the P.H. of soil which can effect achange in the colour of hydrangeas. As an active ingredient in antiperspirants. As an accelerator for concrete, Or a flocculent in water purification.

 

Cas No. 10043-01-3



Price is per kilo

Product Code: ALUM

 

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