Cavity sealing

A cavity sealing is a preservation measure on motor vehicles .

Here, in the cavities of the chassis and body can penetrate with normal process water or (damp) in the ambient air, a rust - inhibitor introduced. This should be able to creep well and form a permanently waterproof surface. A cavity protection wax is used in all new vehicles today . It can also be used on old vehicles, but has the disadvantage of becoming brittle after a few years. Alternatively, fats are used, which liquefy when heated in summer and always remain elastic, the first choice for old vehicles. Subsequent professional sealing requires careful cleaning and the removal of rust from the areas to be processed; any residual moisture has a strong negative effect, as this is to a certain extent also preserved. During subsequent welding work, after-treated vehicles are sometimes at risk of fire, as the greases used are flammable.

Regardless of the protection of the surfaces in the cavities, regular cleaning of the water drains provided is required in order to avoid water accumulation in cavities.

literature

• Hans-Hermann Braess, Ulrich Seiffert: Vieweg manual automotive technology. 2nd Edition. Friedrich Vieweg & Sohn Verlagsgesellschaft, Braunschweig / Wiesbaden 2001, ISBN 3-528-13114-4 .