Effective Release…The Easy Way
There are literally hundreads of thousands of parts that go into an aircraft design. Over the years, Dunstone has created a robust line of products to aid in the manufacturing of many of these components. Everything from structural carbon fiber stringers using our Hi-Shrink FEP tubing, to environmental control system ductwork, flexible reinforced rubber hoses and carbon seat rails for the personal flotation devices using our Hi-Shrink tapes. Our customers use our products time and time again because of their performance and reliability.
Our Hi-Shrink FEP, used over an inflatable rubber bladder or hard/soft mandrel provides excellent release. In addition, it reduces the occurrence of foreign object debris (FOD) and allows our customers to manufacture large numbers of parts quickly and effectively. There are several manufacturers of shrinkable Flouropolymer tubing, but none that can make it as thin as ours with as much shrink. We also have the ability to produce exceptionally long section, in excess of 500’ continuous for longer parts or automated processing situations.
Solutions for Kevlar & Vulcanized Rubber
We commonly think of “Composites” as being Carbon Fiber. However, there are indeed multiple substrates that qualify as a composite. We have many customers making Kevlar parts like the environmental control system duct work shown above, as well as glass composites and peek thermoplastics. This is why we categorize our Hi-Shrink tape by cure temperature. Most composite systems cure out between 250-350°F and so we have an entire product line for these applications. Thermoplastic resin systems, require higher temperatures. We have a dedicated line of products for these applications as well.
Vulcanized Nitrile, PVC and Silicone rubber are common applications for our Hi-Shrink tape in a lower shrink percentage. We have had great success with our 5% shrink material (205R/S in particular) applying pressure to mandrel wrapped rubber hoses, rollers, and complex shapes. The lower shrink percentage applies enough compaction during the vulcanizing or steam autoclave process without producing excess squeeze-out of the substrate.