Windshield Repair Forum

ive been doing repairs with a new style delta bridge/injector and im happy as well as my customers with the result. but i haven't had formal training with delta tools and cant afford to go to OR . i know how to do repairs just wonder if the vac is something im already doing unknowingly. thanks

I may be telling you the obvious; simply contact DK and they will be pleased to help you in the right manner.

bullseyemaster wrote:ive been doing repairs with a new style delta bridge/injector and im happy as well as my customers with the result. but i haven't had formal training with delta tools and cant afford to go to OR . i know how to do repairs just wonder if the vac is something im already doing unknowingly. thanks

The Delta Kits I-100 injector initiates the vacuum cycle when it is pulled back and locked into the upright position. We recommend that you leave it in the vacuum cycle for 30 seconds before lowering the injector back into the pressure cycle. If you would like to see this process done, visit our website and click the link for informational videos.

thanks frank and Jonathan to better help with my question i have a I-100s injector is the vac procedure the same as a reg. non delta. ive been in the biz for a long time but my first time using delta equipment thanks

No, the procedure is not the same, and that is a very important distinction. The I-100 requires very little vacuum or pressure to fill the break with resin and evacuate the air from the break. The pressure cycle is first and should fill the majority of the break. Air is compressed and trapped around the edges of the break. When the injector is changed to the vacuum position a very slight vacuum is produced as the plunder is pulled through the end seal to get the air moving toward the surface. When locked into the vacuum position there is no longer a vacuum being pulled, but the air continues to rise to the surface where it escapes into the cylinder. Understanding this principal is one of the keys to getting optimal results with your Delta Kits injector. Once you no longer see any air movement within the break you switch back to the pressure cycle and continue alternating pressure and vacuum cycles until all of the air is removed.

The idea is that by not using excess vacuum you do not pull air from the surface of breaks with damage extending to the surface, and by not using excess pressure you minimize the chance of crack outs. This is accomplished by using hydraulic pressure so there is never any air from the cylinder being used to push the resin, even after air is removed from the break. This is very unique to the windshield repair industry and therefore requires a unique technique. Using techniques recommended for other system will not yield the best possible results.

thanks Brent


does the vac procedure start when you back the plunger all the way out or just by backing it to the point were the plunger is about to come out. like i put in my post im very happy with my turn out results. also i went to you vids but dident see anything on the i-100s injectors thanks

With the screw type injector you do not have to completely remove the injector from the barrel, but you do need to make sure it is completely out of the seal so the air can escape.

bullseyemaster wrote:thanks Brent


does the vac procedure start when you back the plunger all the way out or just by backing it to the point were the plunger is about to come out. like i put in my post im very happy with my turn out results. also i went to you vids but dident see anything on the i-100s injectors thanks

The vacuum actually starts as soon as you begin to pull back on the plunger. Once the plunger clears the top of the seal there is no actual vacuum but you will still see the air moving to the surface. Pull up slowly for best results, or if using a screw type injector unscrew slowly.