Connect the manifold gauge set as discussed above. Connect the yellow hose to the can tap valve and windshield chip repair seat (turn clockwise) the valve. Close the blue gauge on the manifold gauge set. Open the valve on the can tap valve. Slowly open the valve on the blue or "low-side" gauge and let the refrigerant flow from the refrigerant can into the system until you see a reading of 60psi on the "low-side" gauge. TIP: Placing the refrigerant can in a pan of hot water will allow the vapor refrigerant to enter the A/C system quicker. WARNING: Do not invert the refrigerant can. Doing so will allow liquid refrigerant to enter the system resulting in a ruined compressor.
Some of current techniques do no repair those cracks that directly come into the view of driver's line of sight because a small distortion may still left behind. In that case replacement would be a wise decision. Cost of the repair is entirely depending upon the damage of the windshield. If the cracks are quite long or around 12 inches then charges will be higher.
Why do you think there is windshield repair? You got it, cost. Some insurance companies want you to repair rather than replace because of cost. They save a fortune if you repair your windshield. Also, you need to check with your state as to what is legal as far as windshield repair all states have different laws regarding this issue.
Prior to spending huge amount on a new paint a little money can be spent on cleaners polishes and rubbing compound just for seeing if grease fix auto glass repair are of any help to solve the problem.
Once you have figured out that the crack on your windshield can be repaired, you will need a good repair kit. You can get one from your local auto parts shop or online auto parts retailers. Usually, rockchip repair kits come with an applicator or injector, an adhesive curing film, a suction cup (which serves as the base or stabilizer), and a tube of liquid resin.
Windshield cracks and blemishes can be troublesome. You can never really guess what is going to happen; they almost always start small and end up spider webbing across the remaining windshield. Some rock blemishes only leave chunk of glass missing. If not treated correctly it can turn into a large crack as well.
Now, you should have a better understanding of the benefits of windshield repair as opposed to replacement. Remember to shop around and look for the best price with top quality work. And also remember to speak with your insurance agent about windshield damage coverage. It may cost you little to nothing and you will have your windshield looking good as new.