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Gtechniq - G Wash Shampoo
Gtechniq - G Wash Shampoo
Gtechniq - G Wash Shampoo
Gtechniq - G Wash Shampoo
Gtechniq - G Wash Shampoo
Gtechniq - G Wash Shampoo
Gtechniq - G Wash Shampoo
Gtechniq - G Wash Shampoo
Gtechniq - G Wash Shampoo
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Gtechniq - G Wash Shampoo
Gtechniq - G Wash Shampoo
Gtechniq - G Wash Shampoo
Gtechniq - G Wash Shampoo
Gtechniq - G Wash Shampoo
Gtechniq - G Wash Shampoo
Gtechniq - G Wash Shampoo
Gtechniq - G Wash Shampoo
Gtechniq - G Wash Shampoo

Gtechniq - G Wash Shampoo

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Gtechniq GWash Car Shampoo delivers a deep clean while preserving coatings. Its pH-neutral, high-foaming formula removes dirt safely, leaving a streak-free, glossy finish. Ideal for regular maintenance washes. Read More
From
£9.95
Ex VAT: £8.29
250ml
Stock: 20+
£9.95
inc. vat
500ml
Stock: 20+
£13.95
inc. vat
1 Litre
Stock: 3
£22.50
inc. vat
5 Litre
Stock: 6
£74.95
inc. vat
20 Litre
Stock: 2
£224.95
inc. vat
In Stock. Order now for delivery on Thursday, 15th January. (Select Next Day Delivery at checkout.)

Gtechniq G Wash Shampoo

GWash Car Shampoo from Gtechniq is a premium, highly concentrated cleaning solution formulated to deliver a deep, effective clean while preserving and enhancing your vehicle's protective coatings. Designed specifically for use with ceramic coatings, GWash removes dirt, road grime, and contaminants without compromising the hydrophobic properties or durability of your vehicle's protective layer.

This advanced car shampoo creates a high-foaming lather that encapsulates dirt particles, reducing the risk of swirl marks and scratches during washing. Its pH-neutral formula ensures it is safe for all exterior surfaces, including paint, glass, and trim. Gtechniq GWash Car Shampoo is gentle yet effective, making it ideal for regular maintenance washes to keep your vehicle in pristine condition.

With just 20ml of product required per wash, Gtechniq GWash is both economical and environmentally friendly. Its easy-rinse formula ensures no residue is left behind, leaving your car spotless with a streak-free finish. The shampoo is also biodegradable, aligning with eco-conscious car care practices.

Used in conjunction with Gtechniq ceramic coatings Gtechniq GWash will ensure maximum gloss retention. Or should you be wishing to use a shampoo which boosts the ceramic effect on paint, then we'd recommend trying the new Gtechniq W3 Ceramic GWash

Available in 250ml, 500ml, 1 litre & 5 Litre Bottles

How to use Gtechniq GWash W1 Car Shampoo

  • Shake well before use
  • Use out of direct sunlight
  • Add two caps (20ml) for light dirt, or four caps (40ml) for heavy dirt, into an empty 5 gallon (23 litre) wash bucket
  • Fill bucket with water, for best results use warm water
  • Always begin washing the upper surfaces of your car and work downwards. We recommend using a Gtechniq Microfibres wash mitt
  • After use, rinse your car thoroughly with clean water to remove all surfactants.
  • Store in a cool, dry place
  • Use within 12 months of opening

Always begin washing the upper surfaces and work your way down, rinsing your wash mitt in a separate bucket of water as you go to release dirt and then replenish your mitt in a second bucket containing your dilution of water and G-Wash.  Brake dust is highly abrasive so ideally use another mitt for cleaning your wheels.  Ensure that you never press hard to remove dirt (for stubborn dirt, allow to soak for several minutes) and always rinse your car thoroughly to remove all soap residues. Never apply detergents directly to bodywork or your sponge.


Gtechniq GWash – Frequently Asked Questions

Got questions? You’re in the right place! Whether you’re a first-time user or a seasoned pro, our Frequently Asked Questions section is designed to be your go-to resource for quick answers, troubleshooting tips, and clever tricks to unlock the full potential of Gtechniq GWash.

Gtechniq GWash is a high-foaming car shampoo designed to safely remove road grime, dirt, and contaminants without stripping existing waxes or coatings. Unlike regular shampoos, it’s formulated with advanced surfactants that provide strong cleaning power while maintaining the integrity of your car’s paint protection layers such as Gtechniq C1, EXO, or Crystal Serum coatings. If you’re looking for the product itself, you can find it here: Gtechniq GWash Shampoo.
Yes, GWash is pH-neutral and completely safe for all paint protection systems, including ceramic coatings, sealants, and waxes. Its balanced formula ensures effective cleaning without compromising hydrophobic performance or gloss levels.
Add approximately 20 ml (about two capfuls) of GWash per 10 L of water in your wash bucket. Apply using a soft wash mitt, working from top to bottom in straight lines to minimize swirl marks. Rinse thoroughly with clean water and dry with a microfiber towel for a streak-free finish.
While GWash is primarily formulated as a contact shampoo, it can be used in a foam lance when slightly increased in concentration. However, for thick foam coverage, Gtechniq recommends using a dedicated pre-wash such as Gtechniq W4 Citrus Snow Foam before washing with GWash.
GWash focuses on deep cleaning rather than adding protection layers. Its surfactant technology helps to enhance the natural gloss of the paint by removing residues and maintaining a clean, reflective surface. For added protection, follow up with Gtechniq C2 Liquid Crystal or EXO coating.
You can safely use GWash as part of your regular maintenance wash, typically once a week or whenever your vehicle accumulates noticeable dirt. Its gentle formulation makes it suitable for frequent use without dulling the finish.
Yes. GWash is biodegradable and free from harsh solvents or phosphates, making it an eco-friendly option for professional detailers and enthusiasts alike.
GWash is excellent for removing general dirt, road film, and light contaminants. For stubborn tar or iron deposits, it’s best to pre-treat the area with Gtechniq W6 Iron & Fallout Remover or Gtechniq W7 Tar & Glue Remover before washing.
When stored in a cool, dry place away from direct sunlight, GWash maintains its effectiveness for up to two years after opening. Always ensure the cap is tightly sealed to prevent contamination.
Yes, GWash is safe for matte and satin paintwork. It cleans without adding unwanted gloss, preserving the original finish of the surface.

Gtechniq - G Wash Shampoo Reviews