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Gtechniq W4 Citrus Foam - 1000 ml

Best Seller Gtechniq W4 Citrus Foam - 1000 ml
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Available Sizes

Gtechniq W4 Citrus Foam
1000 ml
($0.02 / ml)
Gtechniq W4 Citrus Foam
5 L
($0.01 / ml)

Product Information

  • Pre-wash foaming degreaser that safely removes heavy contamination
  • Can be used in a Foam Lance, Foam Gun, Pump Sprayer or by hand
  • Multiple dilution ratios
  • Non-caustic, 100% biodegradable formula
  • Product Codes: W4 1 x4, W4 5 x2
  • Read full description

Customer Reviews

100% of customers said that they would buy this item again
Based upon 8 ratings

Product Description

The Gtechniq W4 Citrus Foam is a pre-wash foaming degreaser and shampoo, that will help you remove road grime with ease! When washing your vehicle, sometimes a simple car shampoo does not pack enough punch to safely remove nasty road grime, bug guts, and other contamination. If you are unfortunately in one of these situations, you will need something with more cleaning power. With the W4, Gtechniq combined an effective citrus degreaser with a strong foaming agent, which sprays onto the surface, clings to the area and encapsulates dirt and grime, lifting it from the paint safely and easily. This high-quality formula is pH neutral and does not damage any sealants, coatings or waxes you may have applied combined with a great citrus scent. To apply, you can use a Foam Lance, Foam Gun or pump sprayer or a traditional two bucket hand wash. There are many different dilution ratios (listed below) if you want to fine-tune the results and like most degreasers avoid direct sunlight and do not let the product dry on the surface. Following these basic guidelines, you can expect great cleaning results beyond the powers of normal soaps. Therefore if you want an exceptional cleaner the Gtechniq W4 is a great choice!

Dilution Ratios:
  • Light Dirt: 1:400
  • Heavy Dirt: 1:200
  • Pump Sprayer Application: 1:20


How to use: W4 Citrus Foam

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From The Label

Product Description

Unlike traditional pre-wash snow foams that come loaded with caustic chemicals, Citrus Foam 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 snow foam lance.


  1. Decant 100ml of Citrus Foam into a foam lance and fill with 900ml of warm water.
  2. Spray onto the surface of the vehicle from the bottom to top.
  3. Leave the foam to dwell on the surface for 3 to 5 minutes and then rinse thoroughly with clean water.
  4. Do not allow the product to dry on the surface of the vehicle.
  5. Store in a cool, dry place.

Customer Reviews

Reviewed by on
Would they buy this item again? Yes
Great foaming product. It is very simple to use and certainly mix it to the directions. I foam the entire car with it and let it set for a few minutes then rinse the car off before using a wash pad. I will then either re apply foam or use Gwash with two bucket method and then use the wash pad.
Reviewed by on
Would they buy this item again? Yes
My go to pre soap for decontamination. Sticks to the paint really well
Reviewed by on
Would they buy this item again? Yes
Great quality as usual w gtechniq

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