Gtechniq W4 Citrus Foam

QUICK OVERVIEW  Removes road grime easily Non-caustic formula 100% biodegradable Why use W4 Citrus Foam? Unlike traditional pre-wash snow foams that come loaded with caustic chemicals, W4 Citrus Foam is a pH neutral formula that removes hard to shift grime, without damaging sealants, coatings or waxes. It combines an effective citrus degreaser with a strong foaming agent making it tough on road grime and bug spatter, but kind to waxes and coatings.   It can be used at a dilution of up to 1:400 through a foam lance, or up to 1:25 through a pump sprayer.