Never pour hot water on your automobile windshield chip repair. If you walk out and notice that your windshield is icy, you may consider pouring a large cup of hot water on the glass to melt the ice. This is actually a very bad idea. Large temperature changes can cause the glass to crack. It is best to turn on the car defroster and let the glass slowly warm up. The ice will melt away safely without damage to the glass.
Good question. Windshield crack repair equipment varies widely among companies. High quality resins, injections and air removal methods vary from company to company and can affect the finished repair. Quality injection units and high quality resins are as important as the technicians performing the crack repairs. The quality resins create stronger bonds and resist yellowing better than inexpensive resins. Quality injection equipment will remove more air and the injection capabilities provide a higher quality crack repair.
Check with your insurance, because it's likely your insurance will pay for some forms of windshield chip repair. They may even waive the deductible, since repairing your windshield is so much cheaper than replacing a windshield. Should you need total windshield repair, you may have to pay a deductible with your insurance.
One more repair that can set you behind financially if you don't get done right away is windshield repair. A lot of times our windshields get cracks or chips from road debris that kicks up on the road. If the damaged windshield is taken in for repair promptly, it can be repaired. However if you wait too long you will have to end up buying and replacement windshield and paying to have it installed which is much more costly than a simply repair. Also some shops will offer a mobile service where they will come to you to repair your windshield.
BUT if they hesitate or ask questions, and more often than not, they will call you back and say, Hey wait a minute, come back (IMPORTANT FOR YOU TO APPEAR TO WALK AWAY. IT IMPLIES, NO PRESSURE, AND PEOPLE DO NOT LIKE TO BE PRESSURED OR SOLD).
But the best way to fix a leak is completely removing the glass and shooting a new seal. This is the only way to truly see what is happening. If the glass is removed a technician can 100% fix the underlying issue. This option may require the purchase of a new molding. Also your auto glass company will most likely require you to purchase a new glass if the old glass breaks upon removal.