The common fallacy about cracks on the car window is that they always need replacement. But the car windows cracks can be classified in two major types: repairable and irreparable cracks.
If you got a crack on your window that is not from any edge part of the glass, it can be repaired. The Bulls eye, half moon, star break and combination are some examples of repairable cracks. Bull’s eye and half moon cracks should not be larger than a quarter coin, while the star break and combination should not be larger than the size of a credit card. When you place a credit card on top of the cracked portion and you still see portion of the crack still showing that means it is preferred to replace them. Irreparable are those measuring larger than 24 inches in size. It is also not advisable to repair multiple cracks on a single glass surface or those with deep cracks that looks like a gaping holes, then you would need to replace the complete window.
Some auto parts stores are selling repair kits and they contain a bridge, piston, plastic film, small blade and a tube of resin You can also have these tools come in handy to repair cracks in glass; a vacuum assisted air pump, a glass drill, an ultraviolet light, razor blade, and glass cleaner.
If you have all the required tools and material you can repair your own cracks yourself. Just follow these procedures.
Clean the surface of the crack with the glass cleaner, using a fine glass drill tool create a bulls eye ring. Then insert the resin using the piston of the bridge, suction the piston over the break on the glass and apply the resin slowly. Wait for it to set under the sun or use a blue UV light in case you are in the garage wait for about 15 minutes for it to harden. After drying, remove the bridge and piston then apply a bead of resin on the crack. Put a film over the resin make sure that there are no air bubbles. Once it dries, remove the remove the plastic resin and use a blade to scrape off the excess resin.
If the crack is large or it’s something you would rather leave to the expert, just go to any auto shop and seek the help of a professional.
