Thank you for registering your Gtechniq guarantee. Please read the terms and conditions fully before agreeing to them and completing your application.


You will need to print or save a copy of the terms and conditions to your computer should you need them for reference.


The Gtechniq guarantee covers you for specific problems with the surface of your car such as paint oxidation and staining and helps to extend the ‘new’ appearance of your car for longer. 


It is important that you recognise the surface of your car can be prematurely compromised through improper wash technique and the use of sub-standard car care products or equipment. By following our simple car washing guide below and using the Gtechniq range of after care products, designed to work alongside our ultra-durable, ceramic coatings, your car will retain its showroom condition for years to come. 


For customers who do not have the time to maintain their cars themselves, or would prefer to leave this to the experts, our team of Accredited Detailers worldwide offer a range of aftercare service packages.


Your Gtechniq coating is only covered by guarantee when applied by an accredited detailer or approved dealership and upon completion of our online guarantee registration. Please note that your guarantee is only valid in countries where Gtechniq has distribution (available through dealerships or an accredited detailer network).


It is your responsibility to register your car for guarantee, after which your car is subject to the terms and conditions herein. The guarantee must be registered no later than 30 days after the treatment has been applied to your car. 

Please note guarantees are non-transferable and can only be redeemed by the original purchaser on the car initially registered.


Vehicle inspection schedule

Whilst it is not essential, we do recommend you revisit your detailer or dealer on an annual basis so that they can inspect your vehicle’s finish and perform any maintenance as required. 


With Gtechniq Crystal Serum your car’s exterior is protected with a seven-year guarantee.


Gtechniq Crystal Serum will safeguard the treated surface under the terms and conditions listed below. 


Should the treated car surfaces be damaged tree sap, bug splatter, bird droppings or the sun’s harmful UV rays, Gtechniq will repair or clean (at its option) and retreat the damaged area at no cost to the owner. 



Guarantee conditions and exclusions


In the event of damage to the factory painted surface of your car caused by collision, accident, vandalism or abuse, the vehicle can be taken to a registered Gtechniq Accredited Detailer for retreatment of the damaged areas at the owners or insurers expense. The owner must present a copy of their guarantee document and the guarantee authentication code prior to the car being retreated.


This guarantee does not cover stone chipping, surface rust, marring, abnormal chemical fallout or spillage, untreated panel repair or replacement, scratching, abrasions, manufactures imperfection or paint imperfections such as paint flaking, peeling, foreign matter in paint, orange peel, or clear coat separation.



Guarantee terms and conditions


If damage to your vehicle occurs during the guarantee period and the owner considers this guarantee may be applicable, the following procedures should be followed:


a) Immediately notify Gtechniq by emailing, the following details should be submitted: name, phone number, guarantee serial number, with a brief description of the damage or fault


b) Gtechniq may then arrange for an assessor to inspect the vehicle during normal business hours at a location nominated by them


c) If Gtechniq accepts the claim, we will arrange a mutually convenient time for repair and treatment of the damage or fault


d) Failure to lodge a claim within 30 days of the problem being apparent will absolve Gtechniq of any legal responsibilities


The guarantee shall not be applicable in the case of:

a) Damage by collision, acts of vandalism and burns of any description

b) Treated surface coming into contact with dyes and paints

c) Staining or discolouration or any other defect as a result of faulty manufacture

d) The treated areas are not altered in anyway, removed or over coated with any different products



Gtechniq car washing guide



If you drive your car every day, the rule of thumb is that one wash a week should be enough to keep on top of road grime and other contaminants, and keep your car looking pristine. Some people may choose to wash their car more frequently, if this is you, remember the more you wash a car, the quicker you may introduce micro-scratching and paintwork defects.


Using Gtechniq aftercare products when washing your car once a week, will significantly reduce the chance of surface defects. All of our products have been designed to complement our coatings and will help keep your car looking newer for longer.


Is a prewash foam needed?

Over the last decade we have seen the emergence of a new common practise when washing a car, the use of prewash foam.


Using prewash foam, also known as snow foam, such as Gtechniq W4 Citrus Foam has many benefits over simply hosing or jet spraying a car with water before washing, which often has little effect. 


Once a car is coated with a thick layer of snow foam the soap suds will cling to the dirt particles, allowing the cleaning agents to get to work on breaking down the dirt and grime. This means that after 5 minutes when you rinse your vehicle, the majority of the dirt will simply be washed away. You are then left with a relatively clean surface. 


Because there is very little dirt left on the car, when you start washing with a mitt, there will not be grit and grime spreading across the paint surface as you wash, this actively reduces the amount of marring and fine scratching – helping to preserve your paintwork.


Do I need a lance to use W4?

For best results a lance fitted to a pressure washer is recommended, as the higher the water pressure, the thicker the foam produced. If you do not have a pressure washer with lance or hosepipe with a foam gun, then a pressure sprayer can also be used. Where possible when using W4 Citrus Foam or any foam for that matter, use warm water, this will produce more effective foam with stronger cleaning action.


Recommendations for hand washing

It is a common misconception that you should wash a car with a traditional car cleaning sponge – if you look at them, there is no means of lifting away contaminants from the surface of the car. Dirt particles in sponges are trapped between the sponge and the cars paintwork, this over time will cause swirling and scratching. To prevent this we recommend washing your car with a WM2 Microfibre Wash Mitt.


The WM2 has a deep, fairly loose pile, this lifts and removes dirt away from the surface of the car and makes the mitt easier to wash out. Using a wash mitt goes hand in hand with the two bucket washing approach - the Gtechniq preferred method.


The two bucket method is simply where you fill one bucket with water and Gwash, and another with fresh water. You load you mitt in the soapy water, wash one panel of the car, and then rinse it in the fresh water before repeating the process.


Using grit guards in each of your buckets will also reduce the risk of scratching your car’s paintwork. Each time you dunk your wash mitt into either bucket, rub you mitt against the grit guard to remove any dirt that may still be on the mitt. The grit guard will also trap debris at the bottom of the bucket preventing it from getting back onto your wash mitt.


The washing process


  • Before you begin, please note, try to wash your car in the shade, this will prevent soap suds from drying prematurely before you have a chance to rinse them off. When this is not possible and you are washing your car in the heat, soap suds should be rinsed panel by panel. Ideally any rinsing should be done with an open-ended hose, this allows the water to sheet, making drying an easier task
  • Applying a thick layer of W4 Citrus Foam all over your dry car using a foam lance
  • If you do not have a foam lance then dilute and spray W5 Citrus All Purpose Cleaner onto your car – this will do the same job as the snow foam
  • Once applied leave the foam or all purpose cleaner to dwell on the car for up to five minutes
  • Rinse the foam from the car a relatively high pressure to remove as much grime as possible prior to hand washing 
  • Once you have conducted the initial decontamination you can work on areas that need more attention
  • W6 Iron and General Fallout Remover can be sprayed on your cars wheels or on any surface that brake dust may be present. Spray W6 directly onto the surface and allow it to dwell for 5-10 minutes.  During this time any ferrous particles will dissolve forming a purple solution. After this rinse the residue away with water 
  • If your wheels are particularly dirty you may want to scrub them with a soft tipped wheel cleaning brush and W5 Citrus All Purpose Cleaner
  • Even though Gtechniq coatings have a very strong anti-adhesion function, tar spots are an inevitable part of every-day driving.  Spray W7 Tar and Glue Remover directly onto any tar spots, leave it to dwell 5-10 minutes and then rinse away.  Since they are of a similar chemistry to the tar or glue that you are trying to remove, it is very important that you avoid getting the W7 on any of your vehicle’s trim, vinyl or rubber parts
  • Bugs stuck to the paintwork are a common problem for all drivers. W8 Bug remover has been designed to make removing splatters much easier, simply spray onto the contaminated areas, leave to dwell for 5-10 minutes and rinse away with water
  • W6, W7 and W8 can be used as many times as required prior to washing. In extreme cases you may want to use a MF1 ZeroR Microfibre Buff Cloth to agitate the surface
  • After the second stage of decontamination, it is time to begin the hand washing process. Start with the wheels, wheel arches and lower sides around the exhaust 
  • Fill one bucket of water with Gwash, and another with fresh water (use grit guards in the bottom if you have them), dunk the wash mitt into the suds wash a wheel and then rinse it in the clean water, before dipping it into the soapy bucket again
  • Throughout the wash process, make sure you use plenty of soap suds on your mitt and rinse it thoroughly. Keep an eye on the water becoming too dirty, and replace both buckets as and when necessary
  • Once you have finished cleaning the wheels DO NOT use the same WM2 Microfibre Wash Mitt or the same buckets of water to wash your car’s paintwork. Instead, use a new WM2 and two fresh buckets of water (one with Gwash in), as brake dust is highly abrasive, and should be kept away from paintwork at all costs
  • Always begin washing the paintwork on the upper surfaces (roof, bonnet and boot), and work your way down
  • Again fill one bucket of water with Gwash, and another with fresh water (use grit guards in the bottom if you have them), dunk the wash mitt into the shampoo, wash a panel then rinse it in the clean water
  • Even though all steps are being taken to reduce marring and swirl marks, it is also important you try to follow the lines of the car, using a back and forth, or side to side motion. Circular motions when washing will pronounce any swirl marks
  • Rinse your car well all over with fresh water to remove all soap residues 
  • Dry all of the exterior surfaces of your car with an MF2 Microfibre Drying Towel or a MF4 Diamond Sandwich Microfibre Drying Towel, never use a real leather chamois for drying as they are too harsh for modern paints and can scratch the surface. Because of the coating on your car, drying the surface will require much less effort. Do not scrub or use any force when drying. Simply lay the drying cloth across the surface and pull it towards you. Do not leave your car to dry naturally as this will leave water spots, which may cause damage to the surface if not removed
  • For a streak and spot-free finish use Gtechniq Quick Detailer with a MF1 ZeroR MicroFibre Buff Cloth 
  • Once you have dried your wheels and tyres, applyT1 Tyre and Trim or T2 Tyre dressing to the tyres with an AP3 Foam Filled Applicator for a slick finish
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