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🧼 Elevate your car wash game with foam that’s as smart as your ride!
Gtechniq Auto W4 Snow Foam is a 1L biodegradable, non-caustic pre-wash car shampoo designed to safely loosen dirt and grime using advanced nanotechnology. Ideal for ceramic-coated and high-end vehicles, it protects paintwork by minimizing abrasion while delivering a thick, long-lasting foam with a fresh citrus scent. Trusted globally for over 20 years, it combines eco-conscious ingredients with professional-grade performance.












| ASIN | B00Q2RJ3E4 |
| Best Sellers Rank | 2,195 in Automotive ( See Top 100 in Automotive ) 78 in Automotive Cleaners |
| Brand | Gtechniq |
| Brand Name | Gtechniq |
| Contains Liquid Contents? | Yes |
| Country of Origin | United Kingdom |
| Customer Reviews | 4.5 out of 5 stars 668 Reviews |
| Global Trade Identification Number | 05060147720617 |
| Included Components | GTECHNIQ - W4 - Citrus Foam - 1000ml |
| Item Form | Foam |
| Item Type Name | Gtechniq Auto W4 Snow Foam Car Wash and Degreaser For Cars, 100% Biodegradable Non-Caustic Pre-Wash Snow Foam Cleaner, 1L |
| Item Volume | 1 Litres |
| Item Weight | 1 Kilograms |
| Item form | Foam |
| Item volume | 1 Litres |
| Manufacturer | Gtechniq |
| Material Features | Biodegradable |
| Material feature | Biodegradable |
| Model Number | W4 1 |
| Number of Items | 1 |
| Part Number | W4 1 |
| Product Warranty | Product must be registered on Gtechniq website |
| Scent | Citrus |
| Size | 1 l (Pack of 1) |
| Special Features | Biodegradable, PH Neutral |
| Specific Uses For Product | Automotive Exterior |
| Specific uses for product | Automotive Exterior |
| Surface Recommendation | Metal |
| Unit Count | 1000.0 millilitre |
G**H
Not cheap but does a great job
Not cheap but does a great job. Had to wait an age for a dull, cool day.
C**.
Top notch
Belting product and by far the best degreaser I've used. Will be buying more
K**H
Arrived as scheduled & good product.
It got a great foam that settled quickly on the paintwork. It didn't remove any dirt that I could see after rinsing but when I moved on to the wash stage with shampoo and mit the dirty removed very easily and quickly. My first time using snow foam so I may have a.few.lessons to learn yet to get the best out of it but I am.happy that the dirt that had been stood on the car several months came off so easily. The car has the Gtechniq sealant applied from new at the dealership so felt this product was a good way to enhance that treatment and protect it. There was a light citrus scent, it was easy to pour into the sprayer, car is shining well after the full wash.
C**S
Great product with lots and lots of foam.
Bought this as i had had my car ceramic coated and needed a non contact wash regime for it to keep the coating in good condition, as with any coating, the less physical contact the better. One thing to note, use as per the bottle, if you mix it neat into the lance bottle, then it will not work properly, get the mix correct and this stuff comes out like shaving foam and sticks to the car very well, takes a good 10 mins and it is still on the car, and after washing, there are still lumps of foam on the driveway. Far more gentle than a TFR, all it does is soak into and slightly loosen the dirt, but with a coated car you do not want anything harsh, this followed by a 2 bucket wash method works very well.
S**E
Best for the price
Best snow foam I've used. I found autoglym was a bit corrosive, making small stone chips rust alot and it bleached plastics. No issues like this with gtechnic
B**D
Just works!
Easy to use, works extremely well. I use all the time
S**J
Powerful.
This snow foam does not produce the most luxurious foam, but it does possess a very powerful degreasing agent which most snowfoams don’t. It does produce a deep clean on the car without stripping any coatings, so I'm not intending to use it for every wash but instead will use it 2 or maybe 3 times during the year, such as after the winter months, to get rid of any collected grime, salt etc . Nothing to say you couldn’t use it for every wash but for most maintenance washes I’ll stick to my Bilt Hamber Autofoam. It does provide something “ extra” and it’s very good at what it does.
M**L
Not Good Enough
Decent enough foam but just doest really shift light grime after not doing many miles and fairly dry summer conditions and a bit of rain. I wouldn't buy again as it's not worth the high price tag
M**E
Ottimo se usato con una foam gun
Ho preso questo prodotto per la mia auto... L'ho utilizzato con una Foam Hose (pistola schiuma classica no idropulitrice) Il prodotto è ottimo ma credo che dia il massimo con l'idropulitrice Non funziona con un erogatore spray manuale o/e pressione. Ottimo prodotto se si hanno gli strumenti corretti.
B**S
Nettoyage
Très bon produits
K**.
Thick and slick
I used this with a foam cannon on the end of a gas powered pressure washer. The foam was thick and did a great job of cutting through road spray. It is nice and slick so you are less likley to scratch your clear coat
J**Y
Gute Reinigungsleistung
Die Reinigungsleistung ist wirklich bestens. Das Mischungsverhältnis ist zumindest für die Kränzle Schaumpulle etwas mager. (Das kann aber auch an der Schaumlanze liegen, Vergleiche habe ich nicht).Der Schaum tropft da etwas zu schnell ab. 50% mehr Reiniger und es wird erheblich besser. Selbst mein sehr selten ( halbjährlich) gewaschener, 20 Jahre alter Kangoo glänzte nach einer Wäsche besser als aus der Waschanlage mit Premium-Programm. Grobes mit HD vorwaschen, etwas abtropfen lassen, einschäumen, 3 Minuten wirken lassen, ein Umlauf mit der Waschbürste und Abfahrt. Den Rest macht bei mir der Wind. Gutes Produkt!!
C**N
Conforme
Produit et livraison conformes
Trustpilot
4 days ago
1 month ago