The world's most trusted windshield protection film.

Forged by innovations in nanotechnology, ExoShield is a thin, transparent film applied on your vehicle’s windshield, just like automotive tint. The nanomaterials behind ExoShield preserve your car’s original windshield from stone chips and road debris with 6x more impact resistance.



ExoShield is 6x more resistant to stone chips than standard automotive glass, meaning it can prevent chips from most stones hitting your windshield as fast as 140 km/hr.


ExoShield is a innovative, razor-thin film designed to deflect debris at the most microscopic level. With advanced nanotechnology embedded in a multi-layer, dinstinctly transparent film, ExoShield delivers superior protection against stone chips and the toughest weather conditions.


The ExoShield Dealer Network is a worldwide network of Alchemy authorized aftermarket stores and car dealerships with exclusive permission to provide ExoShield to vehicle owners and fleet-driven businesses.

Your windshield is not just glass.
It's technology.

Heads-up Displays (HUDs) and Advanced Driver Assist Systems (ADAS) are quickly becoming standard features in most cars, making windshields one of the most valuable components of your vehicle.

These sensors and embedded technologies are prone to lose their calibration and their efficacy could suffer the minute you have your windshield replaced.



Windshield Protection Film is a thin film applied to the exterior of a windshield to prevent damage commonly resulting from the impact of rocks or other road debris. It usually consists of a thin nanocomposite layer that is both impact and scratch resistant, while also providing added UV protection by preventing the majority of the total UV rays from passing through the windshield.[1][2] Not to be confused with window tint, windshield protection films are fully transparent and act primarily as a physical barrier to protect the outer surface of the windshield. Unlike laminated glass which is commonly used for modern vehicle windshields, a windshield protection film is applied aftermarket to increase the total impact that a manufactured windshield can withstand before breaking, but does not aim to prevent shattering.

Uses and Benefits

Windshield protection films prevent damage to the windshield by acting as a high-strength layer able to withstand 6-10 times the impact compared to an untreated windshield. Used in both the consumer automotive industry as well as government issued military vehicles, the protective barrier increases the overall lifetime of the windshield while also providing superior safety to the occupants by maintaining the structural integrity of the vehicular cavity.[3] A large portion of current consumer interest in windshield protection stems from the luxury vehicle market where consumers are especially affected by high windshield costs and limited availability of replacement parts. Moreover, with the growing popularity of Advanced Driver-Assistance Systems (ADAS) in the automotive industry, windshield protection films are becoming an essential component to protect expensive sensors embedded in modern windshields.[4]Consumers may also be interested in protective windshield applications for the additional safety and UV protection benefits they provide. From an environmental perspective, the use of windshield protection films are an important measure in preventing excess landfill waste and limiting the release of harmful greenhouse gases that occurs during the installation of a replacement windshield.[5][6]

Physical and Optical Properties

Windshield protection films are typically composed of a layered nanocomposite with an adhesive backing where each layer provides a unique protective component to prevent cracks or scratches.[2] As an aftermarket product, these films can extend the lifetime of the windshield installed by the manufacturer. The composition of a particular windshield protection film may vary depending on the manufacturer, although most are made up of polymer composites that adhere to the surface of the windshield to provide added strength while maintaining ideal optical properties. Polymer coatings such as PET (polyethylene terephthalate) are useful for improving the impact resistance of the windshield and preventing cracking; however, surfaces coated with PET are easily scratched, and thus require additives to make them suitable for automotive applications.[1][7] The protective film can in some cases consist of a flexible polymer substrate that has a scratch resistant coating on one side, and an adhesive layer on the other that is applied to the surface of the windshield.[8] Transparency of each layer is essential for ensuring maximum visibility through the windshield. The typical measure of transparency, Visible Light Transmittance (VLT), is approximately 90% for most windshield protection films on the market. A typical windshield protection film is 4-6 mils (~100-130 μm) in thickness and has the ability to block 99.9% of the UV rays that hit the exterior of the windshield.[9][10]

Installation and Replacement

The installation procedure for windshield protection films can vary. In some cases, the consumer is able to install the film simply by adhering it to the windshield with a flat rubber blade to ensure a smooth and even application. More commonly, the film is professionally applied at an aftermarket store or dealership by thermally fitting the film to the windshield surface in a process very similar to that of a typical window tint application.[4][11]

The average lifetime for windshield protection films depends on the composition and application method of the film; in some cases, replacement may be necessary after 5-12 months,[12] while other films can last as many as 5 years without requiring additional upkeep.[13] Factors such as environmental conditions and wiper blade maintenance can dramatically affect the lifetime of any film applied to the exterior of a vehicle’s windshield. [14]

Regulations for Automotive Use

While there are no regulations specifically pertaining to windshield protection films, most countries have laws regarding the Visible Light Transmittance (VLT) of the windshield. When used in combination with a window tint, specific laws that vary by country and/or region must be considered. The law in many countries considers a VLT of 70% to be permissible,[15][16] putting most windshield protection films well within the acceptable range.

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