CASEIN ADHESIVES AND PUTTIES. 91 



Curd 100 parts. 



Water 200 



Slaked lime 25 



Wood ashes 20 



2. 



Another putty, suitable for stopping large holes in masonry 

 or for pointing joints in brickwork, is compounded of : 



Casein 12 parts. 



Slaked lime 50 



Sea sand 50 ,, 



3. Casein Bind for Meerschaum. 



Casein is dissolved in alkali silicate, stirred quickly with 

 finely-powdered calcined magnesia and used at once, since it 

 very soon hardens. If meerschaum powder be added along 

 with the magnesia, the resulting mass closely resembles real 

 meerschaum, and can be used for making a substitute for 

 same. The meerschaum powder is obtained by pulverising 

 and sifting the waste turnings and shavings of real meer- 

 schaum. 



4. Casein Putty of Good Keeping Power. 



Casein 200 parts. 



Quick-lime 40 



Camphor 1 ,, 



These ingredients are powdered separately, intimately mixed, 

 and packed in tightly closed glass vessels. For use, the 

 powder is stirred up quickly ^with the necessary quantity of 

 water and used at once. 



5. Casein Cement for Porcelain. 



Casein dissolves readily in alkali silicate, and the solution 

 forms one of the best possible cements for porcelain. It is 

 prepared by shaking up 1 part of fresh casein with 3 parts 

 of water-glass in a bottle until dissolved. 



6. Casein Cement for Glass. 



Skim-milk cheese 100 parts. 



Water . 50 



Slaked lime 20 



