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The Science of Windscreen Repairing

Posted by Scientist Mind on
Just Science
The Science of Windscreen Repairing

The common windscreen on a car can be damaged in two unique ways. A chip and a crack. A chip in the windscreen clearly marks the point of impact. The impact can be like a star break, bulls-eye, partial, crack chip or pit. Cracks create a line in the glass ranging from under an inch up to the full width of a windscreen. A crack normally runs horizontally, vertically or in a wavy line.   

A damaged windscreen is always recommended to be repaired immediately from a specialised repairer such as https://metroautoglass.com.au/. This is because even the smallest damage from a chip can develop rapidly into cracks. At that stage, a windscreen replacement will be required. A windscreen that is damaged can cause poor visibility while driving and poses a safety risk.


Is it possible to repair a windscreen?

Size or the chip or crack: Technology to repair a windscreen is rapidly advancing meaning the ability to repair large chips and cracks varies on the company repairing. Chips smaller than a quarter and cracks which are up to three inches long can repair very easily.

Depth: This depends on how deep the damage penetrates in the windscreen. A windscreen is a glass sandwich which consists of an outer layer of glass, a plastic interlayer and an inside layer of glass. If the windscreen damage is through the outer and inner layer of the glass then it’s obviously not easy to repair.

Location: The damage location affects the ability to repair a windscreen. If the damage goes beyond the outer layer of the glass then the windscreen is already damaged beyond repair and a new windscreen has to be replaced. Another location where a windscreen cannot be repaired is when the damage occurs at the driver’s line of sight. The windscreen repair will definitely cause a distortion which can impair a driver’s view of the road.


Windscreen repairing cost

A damaged windscreen in most instances are included in the insurance policies as part of the premium, therefore, a vehicle owner does not incur any cost.  Although in some cases an insurance policy may charge excess cost after assessing the windscreen damage. Repairing a windscreen depends on some factors like location and the size or the crack as well the type of the vehicle.

Types of windscreen damages

Change of temperatures: A dramatic change of extreme temperatures can make windscreen to expand or contract. A vehicle owner is required not to leave a vehicle in direct sunlight on a hot day and also not to let cold air conditioning if the vehicle is very hot. The vehicle should adjust gradually.

Road Debris: Rocks, pebbles, and gravel are thrown from other vehicles ahead on the road while driving hitting the windscreen directly can cause windscreen to shatter or crack. One is required to keep a distance from the vehicle ahead and reduce speed during overtaking especially while driving on a gravel, dirt road or areas where construction sites are.

Windscreen quality or poor installation: Incorrect installation of the windscreen causing cracking there it is important to make sure a windscreen installed by an experienced technician with high-quality materials.

Collisions:  This is the most common cause of windscreen damage.  It can be caused by a traffic accident where two more accidents occur, a driver hitting an animal or children hitting a vehicle accidentally while playing. Collisions can be avoided by driving carefully and being aware of the surrounding away from playing fields.