FOERFARANDE OCH ANORDNING FOER SPRIDNING AV VAETSKOR.

摘要

The invention relates to the spreading of a liquid onto surfaces to be treated and to an apparatus used to spread the liquid. The apparatus has a foaming element comprising a porous body which is saturated with liquid and then subjected to a gas under pressure which forces the liquid out of the porous body in the form of a foam. The bubble sizes in the foam are substantially uniform. In a preferred embodiment the porous body is tubular with a hollow central core and surrounding tubes injecting liquid into the body. The gas, usually air, flows radially outwardly generating bubbles. The method and device may be used to spread fungicide to prevent sapstain on sawn timber.