GTECHNIQ W4 Citrus Foam Easily removes road grime Non-corrosive formula 100% biodegradable Unlike traditional pre-wash snow foams that are loaded with harsh chemicals, W4 Citrus Foam has a pH neutral formula that removes tough dirt without damaging coatings. It combines a powerful citrus degreaser with a foaming agent, making it effective against road grime and insect spray.

It can be used in dilutions up to 10:1 using a foam sprayer. Also with a pump sprayer.

How to use: – For best results, use snow foam in a sprayer, out of direct sunlight – Shake bottle well before use – Pour 2.5 cm (one inch) of W4 into a sprayer and fill with warm water – Spray onto vehicle surface from bottom to top – Allow foam to work on surface for three to five minutes and then rinse thoroughly with clean water – Do not allow product to dry on vehicle surface – Store in a cool, dry place – Use within 12 months of opening.