"Great product"
FREE Shipping on orders over $150 (Weight Restrictions Apply)
Make it easier to remove bugs, road grime, and even ice, all while increasing visibility from your windshield during rain!
Unlike regular rain repellent coatings that adhere to the surface of the glass using relatively weak physical bonds, G1 uses a chemical bond which gives G1 unrivalled durability.
G1's excellent durability and exceptionally low smear characteristics make it ideal for car windscreens.
Note: that with glass coatings there is a trade off between durability and functionality. Whilst G1 is recommended for car windscreens, for surfaces such as shower screens, or marine glass where maximum repellency is required, it is better to use G5 Water Repellent Coating for Glass and Plexiglass.
Please also note that G1 will only work on glass substrates so, for example, it will not work on modern headlight lenses which are made from polycarbonate.
Excellent durability & low smearing
Protection that last for up to 2 years
Last up to 30,000 Miles
Wiper blade proof
Makes wet weather driving safer & less tiring
Highly concentrated nano technology formulation
Keeps windshields cleaner longer & makes bugs & ice easy to remove
For non-new glass prepare first with G4 Glass Nano Polish
Apply 3 coats for windscreen, 1 coat for side windows
Includes FREE G2 Residue Remover
Directions
Please allow extra time for delivery to regional and remote areas.
Free Shipping on orders over $150 excluding remote areas and certain weight restrictions apply for free shipping in each state. Trade accounts $250 minimum for free shipping.
The following qualifies for free shipping:
For orders with free shipping, we determine whether to use a courier service or Australia Post based on the address. If you prefer your order to be shipped via Australia Post, please select the "Parcel Post" option at checkout.
Note: We do not ship to PO Boxes or Parcel Lockers with free shipping.
If your parcel is returned to us, the following conditions outline when additional shipping costs may apply:
*We will not be held responsible for delays or late delivery of Australia Post or courier services.
*If a parcel does not arrive as anticipated, please allow 5-7 working days for Australia Post or couriers to complete process of tracking and locating as in most cases it turns up after 3-7 days of expected delivery. We cannot refund or send another item until this process is completed.
*We don't take responsibility for orders that are lost or stolen once the parcel has been delivered to the correct delivery address.
*Items that are over 21kg may require to pay extra freight costs if in regional or remote areas - we will contact you if this is the case.
All of our prices are in Australian dollars (AUD) and include GST (Goods and services tax)
At Detailing Shed, we're committed to supplying premium-grade car care products. Please review the following before submitting a return or refund request.
Version 1.2 · Last updated: 18 August 2026
| Topic | Summary |
|---|---|
| Change-of-mind returns | Store credit only, within 30 days of delivery, unopened & unused |
| Restocking fee | 10% of item price |
| Return shipping | Paid by the customer |
| Non-returnable | Chemicals/liquids, Ceramic Coatings, and all Kranzle & Big Boi products |
| Faulty / damaged / incorrect items | Report within 10 days: repair, replacement or refund, no fee |
| Order cancellation (before dispatch) | Refund to original payment method, minus 3% transaction fee |
| Missing deliveries | Allow 7–15 business days after carrier investigation begins |
| New Zealand orders (polishers/buffers & pressure washers) | Customer pays return shipping for repair, inspection or warranty claims, even if a fault is confirmed |
Nothing in this policy limits or replaces your rights under the Australian Consumer Law (ACL). If a product has a major or minor failure (for example, it's faulty, unsafe, not fit for purpose, or significantly different from how it was described), you're entitled to a repair, replacement, or refund under the ACL, regardless of the store credit, restocking fee, or timeframe terms below.
The terms in the rest of this policy apply to change-of-mind returns and other situations that aren't covered by a consumer guarantee.
We accept change-of-mind returns for store credit only, on items that are unopened and unused, within 30 days of the delivery date.
Due to safety, hygiene, and quality control, the following are never eligible for change-of-mind return:
Unused, unopened accessories such as brushes, pads, and towels may be eligible, subject to approval from our team. Email us first with your order number and photos before sending anything back.
If you believe a product isn't working properly, contact us first rather than returning it straight away. Here's how we handle it:
If you've told us in advance the specific job you needed a product to do and it can't do that job, let us know. That can still count as a failure under the ACL even if the product otherwise works normally.
For orders shipped to New Zealand, if a polisher/buffer or pressure washer needs to be sent back to us for inspection, repair, or a warranty claim, return shipping is paid by the customer. Given the cost of international freight, we're not able to cover shipping on these two product categories for New Zealand orders, even where a fault is confirmed.
Yes, if you ordered the wrong product, return it under the policy above and place a new order for the correct item.
You can cancel an order any time before it's been processed or shipped. A 3% transaction fee (covering payment processing costs) is deducted from the refund; the remainder goes back to your original payment method.
Once an order has been processed or dispatched, it can no longer be cancelled, but you can still return the items under the Change-of-Mind Returns policy above.
Notify us within 10 days of delivery at info@detailingshed.com.au with your order number and clear photos. We'll arrange a replacement, or a refund if stock isn't available, at no cost to you. If we need the item sent back to us first, we'll cover or reimburse that return shipping too, since the item is faulty, damaged, or incorrect rather than a change of mind (this doesn't apply to New Zealand orders for polishers/buffers and pressure washers, per above).
For any return worth over $50, we recommend a trackable shipping service or shipping insurance. We're not responsible for returned items lost in transit.
If your order hasn't arrived, please allow 7–15 business days after Australia Post or the courier begins their investigation. We'll be in touch once it's resolved and any refund or replacement has been processed.
Product packaging or colours may differ from the images on our site due to manufacturer updates. This isn't grounds for a refund unless the product itself is faulty or incorrect.
Discount codes must be applied at checkout and can't be added retroactively to an existing order, and we can't refund the difference after an order is placed. Double-check your code before completing checkout. If it's not working, contact us before you finalise your purchase.
| Version | Date | Changes |
|---|---|---|
| 1.0 | 18 Aug 2026 | Initial rewrite: added the Australian Consumer Law rights section, the “isn’t performing” walkthrough, the at-a-glance summary table, and this version history. Clarified the Kranzle/Big Boi exclusion covers the full brand range (not just liquids/chemicals), removed Flex Tools from the non-returnable list, and clarified the 3% cancellation fee applies when refunding to the original payment method. |
| 1.1 | 18 Aug 2026 | Added a New Zealand orders clause: for polishers/buffers and pressure washers, the customer pays return shipping to send the item back for repair, inspection, or a warranty claim, even where a fault is confirmed. |
| 1.2 | 18 Aug 2026 | Clarified that for domestic (Australian) faulty, damaged, or incorrect items, Detailing Shed covers or reimburses return shipping (not just the replacement/refund), with the New Zealand polisher/buffer and pressure washer exception carved out. |
We're here to help
If you need to contact us for advice on any of the products, please email us at info@detailingshed.com.au
Please include description of the product you are interested. Some info of you car, and also what you are trying to achieve.
We may also review our blogsfor product recommendations.
Overall rating: 4.714286 / 5 from 14 reviews.
Review topics: [].
"Great product"
"Very easy to use and apply. With fantastic results."
"This is a great priced high quality product giving an awesome result. So easy to use."
"Having applied G1 on multiple vehicles, the durability and water repellency are excellent. Most noticeable are on speeds of 80km+ where the water just flies off the windshield and there’s no need for the wiper blades. Otherwise, on low speeds G1 beads extremely well. My only suggestion is that it’s best to work in sections during application as it can be tricky to buff off with the 2nd step G2 residue remover."
"This product has amazing hydrophobic properties. My customer's love it"
"It ruined my windshield,"
"easy application"
"Excellent product"
"This is an excellent product, it works exactly as described and I would recommend it for anyone willing to do the prep work and spend the time with the install, following the instructions closely. I did 2 cars with the fluid available, however I would recommend purchasing GTechniq applicators (they're very cheap). The only part I found difficult was one of the later steps of using the residue remover - the G1 compound has some serious bondage to the windscreen, I was much more aware and found it easier going with the second car, but as the instructions state, working in small areas is key. I cannot comment on the longevity of the product as of yet, but given the wet weather in Sydney lately I can say it is very effective! In the morning, there are beads on all my windows and the roll off as I start driving. If it's raining, the vision is a lot clearer than normal without even using the wipers, and once you hit 70km/h, I use the wipers on the low intermittent setting just to clear the droplets. Incredible. There is so much more visibility in the rain, and the windows are noticeably cleaner day-to-day."
"Cant live without it in rainy queensland"