Connect the manifold gauge set as discussed above. Connect the yellow hose to the can tap valve and fix auto glass 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.
You're also competing against the big boys out there... The safelite's and other big companies who seem to have an unlimited advertising budget. Some getting into this industry become intimidated by the big boys and their big advertising budgets. But you don't have to be concerned about that if you market your business correctly.
Next we have the windshield repair kits priced in the middle. They range in price from $600-$2,000. These are the companies that normally offer high-quality repair kits at a an affordable price. But not all of them.
Test your lights. If you notice an improvement-you are done! If it still appears dim or cloudy, you may want to use a special plastic cleaner and wax to give it a higher polish and sheen. These can be purchased at fix auto glass repair repair stores. When using them, be careful not to get any on the rest of the car as it could cause damage. Some masking tape around the headlight border can help protect it. You may want to use a rotary buffer to ensure the smoothest polish possible.
If a rock hits your windshield while you are driving when it is already cracked, this can cause it to shatter too and you will not be able to see the road. Dings and scratches generally won't do this but there is always that risk factor that you have to be cautious about.
Now take a look at your vehicles bumper. If you have bumper damage either in the front or rear of your vehicles it will have a harder time protecting you, your passengers and your vehicles engine and body. If it has been damaged it is also weakening and making it harder to do its job of protecting what is inside. So, get your bumper repaired at a local qualified auto body shop. It doesn't take as long as you think and what is more important than safety on the road.
If you have a chip or a growing crack in your auto glass then the best time to get it taken care of is immediately. Every heavy gust of wind or debris that strikes your window can cause a large and sudden streak in a crack that forces it to spread. Tend to your windshield and get the crack taken care of immediately.