--- product_id: 52327554 title: "W4 Citrus Pre Wash Foam" brand: "gtechniq" price: "Β₯9845" currency: JPY in_stock: true reviews_count: 13 category: "Gtechniq" url: https://www.desertcart.jp/products/52327554-w4-citrus-pre-wash-foam store_origin: JP region: Japan --- # 100% biodegradable & pH neutral advanced molecular nanotech formula 1L premium foam volume W4 Citrus Pre Wash Foam **Brand:** gtechniq **Price:** Β₯9845 **Availability:** βœ… In Stock ## Summary > ✨ Elevate your car wash game with science-powered foam magic! 🧼 ## Quick Answers - **What is this?** W4 Citrus Pre Wash Foam by gtechniq - **How much does it cost?** Β₯9845 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/52327554-w4-citrus-pre-wash-foam) ## Best For - gtechniq enthusiasts ## Why This Product - Trusted gtechniq brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Eco-Chic Clean:** Biodegradable, non-toxic formula that’s gentle on paint and planet alike. - β€’ **Nano-Tech Edge:** World-leading molecular nanotechnology ensures superior dirt loosening without harming coatings. - β€’ **Scratch Shield:** Lubricates grime to minimize abrasion, preserving your car’s flawless finish. - β€’ **Foam Powerhouse:** Thick, clinging foam lifts dirt effortlessly for a safer, scratch-free wash. - β€’ **Trusted Global Icon:** Chosen by enthusiasts in 50+ countries, with 20+ years of premium performance. ## Overview Gtechniq W4 Pre Wash Cleaner Snow Foam is a 1L biodegradable, pH-neutral citrus foam designed to safely loosen dirt and road grime before washing. Utilizing advanced molecular nanotechnology, it protects paintwork and existing coatings by minimizing surface abrasion. Trusted worldwide for over 20 years, it delivers a thick, long-lasting foam that makes car care effortless and scratch-free. ## Description Product Description W4 Citrus Foam Who are Gtechniq and what do they specialise in? Gtechniq is a science-led surface protection brand that creates advanced coatings and car care products, specialising in ceramic and protective technologies for vehicles, boats and other surfaces. Who are Gtechniq and what do they specialise in? Gtechniq is a science-led surface protection brand that creates advanced coatings and car care products, specialising in ceramic and protective technologies for vehicles, boats and other surfaces. How do Gtechniq ceramic coatings work? Gtechniq ceramic coatings chemically bond to your surface at a nano level, creating a hard, protective layer that resists UV, chemicals and contaminants while making maintenance easier. How do Gtechniq ceramic coatings work? Gtechniq ceramic coatings chemically bond to your surface at a nano level, creating a hard, protective layer that resists UV, chemicals and contaminants while making maintenance easier. What makes Gtechniq different from waxes or sealants? Unlike waxes or polymer sealants, Gtechniq coatings form a semi-permanent, chemically bonded layer that offers better durability, protection and gloss retention. What makes Gtechniq different from waxes or sealants? Unlike waxes or polymer sealants, Gtechniq coatings form a semi-permanent, chemically bonded layer that offers better durability, protection and gloss retention. Do Gtechniq coatings need specialist application? Some Gtechniq products are DIY-friendly, but professional application through an accredited detailer is recommended for best results, especially for long-term coatings. Do Gtechniq coatings need specialist application? Some Gtechniq products are DIY-friendly, but professional application through an accredited detailer is recommended for best results, especially for long-term coatings. Compare Gtechniq Range Citrus Foam Car Shampoo Wheel & Paint Cleaner Wheel Armour Protects Ceramic Sealant Tar and Glue Remover I1 Smart Fabric Review: 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. Review: Not cheap but does a great job - Not cheap but does a great job. Had to wait an age for a dull, cool day. ## Features - Causes serious eye damage. - Causes serious eye irritation. - Causes skin irritation. - USE BEFORE CAR WASHING TO LOOSEN DIRT - apply to paint and let the thick foaming agents and degreaser lift off stubborn dirt and road grime to make car washing much safer, easier and quicker. - BIODEGRADABLE, NON-TOXIC AND NON-ACIDIC – not only is the gentle yet effective formula harmless to the environment. It's also gentle on your paintwork and does not remove any sealants, ceramic coatings, wax or polish - HELPS AVOID SCRATCHES ON YOUR PAINTWORK - the non-caustic formula combines an effective citrus degreaser with a strong foaming agent that lubricates the dirt particles to minimise surface abrasion. - MADE BY THE WORLD LEADER IN MOLECULAR NANOTECHNOLOGY – founded in 2001 by a quantum physicist, Gtechniq products are unique and use innovative, advanced technology to achieve a level of performance that outclasses any others on the market - 100% CUSTOMER SATISFACTION FROM UK BASED GLOBAL COMPANY – sold in 50 countries worldwide, Gtechniq has been the no 1 choice of high-end vehicles for over 20 years, and is passionate about the quality of its products and the stellar service it provides ​ ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00Q2RJ3E4 | | Best Sellers Rank | 2,515 in Automotive ( See Top 100 in Automotive ) 70 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 671 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 | ## Product Details - **Brand:** Gtechniq - **Item form:** Foam - **Item volume:** 1 Litres - **Material feature:** Biodegradable - **Number of items:** 1 - **Scent:** Citrus - **Special feature:** Biodegradable, PH Neutral - **Specific uses for product:** Automotive Exterior - **Surface recommendation:** Metal - **Unit count:** 1000.0 millilitre ## Images ![W4 Citrus Pre Wash Foam - Image 1](https://m.media-amazon.com/images/I/61V5q1TNG9L.jpg) ## Questions & Answers **Q: Who are Gtechniq and what do they specialise in?** A: Gtechniq is a science-led surface protection brand that creates advanced coatings and car care products, specialising in ceramic and protective technologies for vehicles, boats and other surfaces. **Q: How do Gtechniq ceramic coatings work?** A: Gtechniq ceramic coatings chemically bond to your surface at a nano level, creating a hard, protective layer that resists UV, chemicals and contaminants while making maintenance easier. **Q: What makes Gtechniq different from waxes or sealants?** A: Unlike waxes or polymer sealants, Gtechniq coatings form a semi-permanent, chemically bonded layer that offers better durability, protection and gloss retention. **Q: Do Gtechniq coatings need specialist application?** A: Some Gtechniq products are DIY-friendly, but professional application through an accredited detailer is recommended for best results, especially for long-term coatings. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great product with lots and lots of foam. *by C***S on 30 October 2019* 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. ### ⭐⭐⭐⭐⭐ Not cheap but does a great job *by G***H on 9 May 2026* Not cheap but does a great job. Had to wait an age for a dull, cool day. ### ⭐⭐⭐⭐ Arrived as scheduled & good product. *by K***H on 21 May 2026* 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. ## Frequently Bought Together - Gtechniq - W4 Citrus Foam - High Content Foaming Agent, Removes Dirt and Road Grime, Non-Caustic Formula, Maximum Gloss Retention Snow Foam (1 Liter) - Gtechniq W6 Iron and General Fallout Remover for Cars, Brake Dust Degreaser and Cleaner for Wheels, Rims and Paintwork, Safe on Coatings, 500ml - Gtechniq - W1 GWash - High Foam Content, Maximum Gloss Retention, Tough On Dirt and Grime, High Slickness Lubrication - Breaks Down Residue, Works Great in Foam Cannons (500 milliliters) --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/52327554-w4-citrus-pre-wash-foam](https://www.desertcart.jp/products/52327554-w4-citrus-pre-wash-foam) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-06-24*