

CASEIN PAINTS. 53 



Casein paints, drying without gloss, are therefore suitable 

 for painting house fronts, iron and other metal work, and 

 also for canvas. Their most advantageous application is for 

 the purpose first named, since they can then be prepared in 

 large quantity, used up at once, and will dry in a few hours. 

 They enter into combination with the underlying plaster and 

 are thereby rendered more durable. 



The paints prepared as above are thinned down to a 

 workable consistency with further quantities of casein var- 

 nish, and are then laid on as evenly as possible, in the same 

 way as oil paint. The first coating will dry in about an hour, 

 and a second coating can be applied a few hours later. This 

 property of drying quickly is a great point of superiority over 

 oil paint, since casein paints can, therefore, be used during 

 unfavourable weather and seasons without any fear of the 

 paint washing away or peeling off. These paints are also 

 inodorous, whereas the smell of varnish and turps hangs 

 about oil paint for a long time. 



For woodwork the paint is prepared in the same way, 

 but three or four coatings are necessary to cover the wood 

 properly. It can then be grained and varnished, just as in 

 the case of oil paint. 



Ironwork must be coated with casein oil paint, as the 

 ordinary casein paint will not stick to the metal. The iron 

 should be freed from rust and the paint applied as a thin 

 coating. Owing to the rapid drying of the paint it is less 

 subject to injurious influences, but should be protected from 

 these as much as possible to prevent the paint washing or 

 peeling off and thus defeating the object of the operation. 



CASEIN DISTEMPER PAINTS. 



There has of late years been a fairly considerable develop- 

 ment in the use of distemper paints, which are sent out by 

 many makers under a variety of fancy proprietary names 



