Windshield Repair Forum

i am having a hard time doing rv's and trucks with my delta injector, does delta make an injector that can do verticle glass?

I would believe all Delta injectors can perform vertical repairs. Are you putting in enough resin?

I personally don't use Delta injectors but find the need to use a few more drops of resin on all vertical repairs.

I have been doing vertical windshield repairs with Delta Kits injectors for 24 years and many Delta Kits customers were doing vertical repairs with Delta Kits injectors before I entered the scene. All it takes is a couple of minor adjustments in your bridge setup and a little more resin. In fact, my largest fleet accounts had nothing but cab over trucks and high end motor homes.

Brent, can you explain the minor adjustments?

Micah, I'll explain what I do:

I set the bridge up to where the injector is above the suction cup, touch the glass with the injector and then screw the adjustment screws a few more than the normally prescribed 4 half-turns (to create a downward angle of the injector). I ensure that the injector seal is sealed against he glass and then add my resin. Sometimes up to 14 drops (2x a "normal" repair) of resin is what is required to fill the barrel up to a point where it will inject properly.

Best of luck!

benswindshieldrepair wrote:Micah, I'll explain what I do:

I set the bridge up to where the injector is above the suction cup, touch the glass with the injector and then screw the adjustment screws a few more than the normally prescribed 4 half-turns (to create a downward angle of the injector). I ensure that the injector seal is sealed against he glass and then add my resin. Sometimes up to 14 drops (2x a "normal" repair) of resin is what is required to fill the barrel up to a point where it will inject properly.

Best of luck!

why so much resin

I always have the suction cup above and screw the injector further out.

micah wrote:Brent, can you explain the minor adjustments?

I make the same adjustments as Ben except whenever possible I try to place the cup above the break, like screenman, which means I use an extra 2-4 half turns and on the injector and 2-4 half turns less on the adjustment screws. The result is the same but I like having my cup above the break so if I have a leak I don't get any resin on it. I also think it makes it a little easier to view the break as you repair it, but that is just personal preference.

As Ben mentioned, the extra resin is necessary to ensure the seal stays full. Think of a test tube with graduation marks at 25%, 50% and 75% with the 25% mark representing the end seal. Keeping the tube horizontal, fill with water to a little above the 25% mark. This represents the amount of resin you would need to have above the end seal if you were working on a horizontal surface so that as the resin flows into the break the seal always stays full (keep in mind the damaged area typically only holds a couple of drops of resin). Now tip the test tube at a 45 degree angle and you will see that you need to add additional water to make sure the water stays above the 25% mark. The greater the angle the more water you need to add. If you tip the tube completely horizontal 1/2 of the water runs out, which is why we make the adjustments to always keep the injector from ever being completely vertical. Keep in mind, when we say "add x number of drops", we are not counting the drops. We predetermine how many drops are in the dropper at a certain fill level, then insert the dropper into the injector cylinder until the tip touches the top of the end seal. This is especially important when performing vertical repairs.

You can avoid using extra resin by bottom loading your injector, in which case you will use less resin than normal. There are some limitations to bottom loading so the only time I do that is when I'm working on an inverted windshield, which is pretty rare, at least in this area. When I do bottom load I prefer to use our screw type injectors rather than our spring loaded injectors, but again, this is a technique I rarely use. In fact, it's been years since I have found the need to bottom load the injector.

These recommendations are only for Delta Kits injectors and bridge assemblies. For other brands you should refer to the manufacturer for instructions.

Thanks guys!