METHOD OF SUPPLYING CAVITY WITH FOAM

摘要

A foamed mass is provided in a cavity of a hollow section of a vehicle body using a room temperature curable foam forming silicone composition. Flow of the composition as it foams and cures is restricted by a bag. The bag is inserted in the cavity and the composition introduced to the bag in liquid form. The composition is held in the bag and the composition expands therein and the bag is urged into conformity with the shape of the cavity. By this means inhibition of the cure of the silicone composition by materials in the section is prevented, and the composition is held in place until it has cured so that even heightwise disposed sections with open ended cavities may be satisfactorily treated. The bag remains as a sheath for the cured foam and serves to isolate the mass from its environment.