Gtechniq G-Wash W1 High Foaming Shampoo
Gtechniq W1 GWash is a pH-neutral, high-foaming car shampoo engineered to clean effectively while preserving existing protection.
Key Benefits
- High-Foaming Cleaning Power: Breaks the bond between dirt and paint for safer removal.
- pH Neutral Formula: Won’t strip waxes, sealants, or ceramic coatings.
- Enhanced Lubrication: Helps reduce abrasion and swirl marks during contact washing.
- Coating-Friendly: Designed to complement and maintain Gtechniq protection systems.
- Eco-Conscious: 100% biodegradable and environmentally safe.
- Pleasant Cherry Scent: Makes routine washing more enjoyable.
How to Use
- Pre-Rinse: Thoroughly rinse the vehicle to remove loose dirt and debris.
- Mix: Add the recommended amount of W1 GWash to a wash bucket and agitate to create foam.
- Wash: Clean the vehicle top to bottom using a quality microfiber wash mitt.
- Rinse: Rinse thoroughly to remove all shampoo residue.
- Dry: Dry with a premium microfiber drying towel to maximise gloss.
PRO TIP: For best results on coated vehicles, pair W1 GWash with a grit guard and a plush wash mitt to further reduce the risk of swirl marks and maintain peak gloss.
Dilution calculator
Pick your container and your ratio, and read off how much concentrate to pour.
A foam cannon does not spray its bottle. It draws from the bottle into the pressure washer's flow, so a 1 L bottle can put 11 L on the car and the ratio in the bottle tells you nothing about what reaches the paint. Measure your setup once and the number holds for every product that quotes a PIR.
Nothing matches that. Check the product's own page for its ratio.
Common questions
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Parts water to one part product. A 10:1 mix is ten parts water and one part product, so a 1 L bottle takes 91 ml of product and 909 ml of water. A few brands print theirs the other way round, so check the label if a number looks unusually strong.
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Water first, then the concentrate. Pouring concentrate into an empty bottle and topping it up makes it foam over the top, and you lose some of what you just measured.
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Most diluted products keep for a few weeks in a sealed, labelled bottle out of sunlight. Write the product and the ratio on the bottle. An unlabelled trigger bottle is how the wrong chemical ends up on someone's interior.
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Panel Impact Ratio is the concentrate as a percentage of everything leaving a foam cannon, the bottle water and the pressure washer water together. It matters for snow foam and pre-wash only, because a cannon draws from its bottle into the washer's flow rather than spraying the bottle.
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A syringe or a measuring jug with millilitre graduations. Capfuls vary by bottle and by how full you fill them, and at 256:1 a few millilitres out is a noticeable change in strength.