This question is a bit complex, because of the multitude of components and processes that go into creating Blast Zone commercial inflatables. Everything from 72oz (for reinforced impact areas) to 18oz vinyl for structural component surfacing (such as bounce and slide surfaces), to 7oz (for decorative non-structural areas such as palm fronds) are used in assembly.

The goal in the construction of BZ commercial Inflatables is to create the most durable, safe product possible, that is manageable and practical for the owner. Over years of production and hundreds-of-thousands of products created and sold, numerous safety and quality advancements have been achieved. 

Impact surfaces, which take the structural abuse in the inflatable, utilize 18 oz vinyl, which is additionally reinforced up to "72 OZ." This reinforcement process is achieved by permanently fusing together multiple sheets of vinyl near the assembly area, before the components are joined together. This creates a virtually impenetrable joint for ultimate durability. 

Additionally as important are the high-grade webbing in the vinyl we use, which provides the material its tensile strength. Please note some specifications listed here may exceed those in older product literature, as the products have been continuously upgraded over time.