Gtechniq W4 Citrus Foam pH-Neutral Pre-Wash 1L

Unlike traditional pre-wash snow foams that come loaded with caustic chemicals, Gtechniq W4 Citrus Foam pH-Neutral Pre-Wash is a pH neutral formula that removes hard to shift grime without damaging coatings.

It combines an effective citrus degreaser, with a foaming agent, making it tough on road grime and bug splatter. It can be used at a dilution of up to 10:1 through a foam lance. And also through a pump sprayer.

For best results use in a snow foam lance, out of direct sunlight
Shake bottle well before use
Decant one inch (2.5cm) of W4 into a foam lance and fill with warm water
Spray onto the surface of the vehicle from bottom to top
Leave the foam to dwell on the surface for three to five minutes, and then rinse thoroughly with clean water
Do not allow the product to dry on the surface of the car
Store in a cool, dry place