The reason that cracks often start on the edges of the automobile windshield chip repair is because the edges are the structurally weakest area. The frit is on the glass because it keeps the ultraviolet light from the sun away from the polyurethane seal that holds the windshield in the frame. Without the frit, the windshield would quickly start leaking or just pop out of the frame of the car.
For that reason, many companies will happily waive the deductible if the existing windshield can be repaired. So you may be able to have that chip or crack fixed without paying anything at all.
Now that you know what can and can't be repaired, there's one more thing to consider. Time!! Many factors like extreme heat or cold and even your air conditioning cooling down the windshield on a hot day can cause the damage to get worse. The longer you wait to repair the damage, it could spread and may turn a repairable situation into a full blown windshield replacement costing YOU more. Most insurance companies WILL cover a rock chip on the windshield at no cost to you. Speak with your insurance agent to get more information on what they will cover when it comes to windshield damage.
Do-it-yourself repairs are the cheapest option but if not done correctly, it may cost you more. If you plan to do it yourself, it is important to choose the best kits. Research or seek the advice of experts so you would not be sorry. There are two types of windshield repair kits. The first is the less expensive syringe-type. The kit includes a syringe and the resin, intended for one-time use only. It contains just enough resin to repair one chip. The second type is the more expensive bridge system that includes the resin's and a plastic bridge. This type can be used several times because it is refillable.
Paint doesn't bond well with rust, so keep touch-up paint nearby to immediately apply over small scratches and nicks. If you wait too long to apply the touch-up paint, the scratch will have already began to rust and you the paint won't stick. Apply the paint quickly and cover the spot to prevent the rust from accumulating.
There are certain scratches that are advisable to be removed by buffing. If the scratch is too deep however, it is best to use resin to cover up the scratch. The rest of the window will be protected from further damage if the spider cracks are stopped in time.