Recently, the theory of removing air from the break through displacement was scrutinized with several laboratory tests. Under high magnification photography, testing results were captured on film.

1. Delta Kits’ I-100 Injection System, which uses displacement technology, was used for the test. Technicians completed Delta’s recommended steps for windshield repair on a standard break without completing the curing stage. NOTE: NO measurable vacuum was attained.
2. The G3 ProVac Injector , which pulls air and moisture from the break under vacuum in the absence of resin (without displacement), is introduced to the repair at this point. The first vacuum stage is implemented. NOTE: A vacuum of 27” mercury at sea level was attained.
3. The G3 ProVac Injector visibly removes additional air from the “finished” repair – pulling air from the break through the resin that has already been introduced. NOTE: Because a repair must “completely remove all the air from the break” per NWRA Recommended Practice and the ANSI Standard , the repair by the Delta Kits can only be considered an incomplete repair.

Conclusion: The removal of air, as prescribed by ROLAGS®, is not possible using the I-100 Injection System manufactured by Delta Kits. Displacement does not sufficiently remove air from the break.