The solution is used for fire retarding agent of wood by impregnation.
2.
If needed, a retarding agent may also be added to the mixture.
3.
If Alker is to be produced on the construction site, addition of a retarding agent is not necessary.
4.
Among these is cast earth, which uses the Alker mixture with the addition of a retarding agent in order to lengthen the setting time.
5.
Typically a retarding agent is added to the mix . this is normally Cream of Tartar ( or " Dope " in the plasterer's jargon ) and care must be taken with the amount added.
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