Brush latex is a moulding compound based on pre-vulcanized natural rubber latex. Pre-vulcanized latex is recommended for mould production as it only requires drying to give a strong elastic film. The high solids content and viscosity properties are suited to brush application without the occurrence of runs and sags. Brush latex films, characteristically exhibit low shrinkage rates and fast drying times. Intricate models can be reproduced in exact detail and moulding latex will not separate on standing.