Elastomeric tooling system

Rubbercraft (Long Beach, CA, US) introduced at the recent SAMPE Seattle 2017 show a new non-permeable elastomeric tooling system, which is now available.

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Rubbercraft (Long Beach, CA, US) introduced at the recent SAMPE Seattle 2017 show a new non-permeable elastomeric tooling system, which is now available. This new flexible tooling product was developed by Rubbercraft for high temperature molding of complex structural aircraft composite parts where a bladder or reusable vacuum bag is required, to provide higher surface quality and improve productivity. This innovative new ‘tri-layer’ flexible tooling technology improves part quality by reducing leaks and avoiding surface porosity.  It also provides an extra layer of security against leaks due to punctures or manufacturing defects. Because the tri-layer tooling system has an integrated breather layer, it can be used as an elastomeric reusable vacuum bag to infuse complex parts where it is not possible to use an internal breather. Additional benefits include: 1) reduced profile, improved fit and superior surface finish on part inner surfaces; and 2) easier and more accurate leakage checking by simply applying a vacuum to the breather layer, with no need to use a specialized test station.  According to the company, the elastomeric tooling works by having a fully integrated central breather layer which counters gas permeation onto the surface of a molded FRP composite part during production, even at high pressures and temperatures. The integrated breather layer not only allows the removal of trapped air between the part and the tool, but also acts as a gas barrier from the outside. This integrated breather layer counters the inherent permeability of elastomers, such as Viton or silicone, on the high pressure side, while removing unwanted air or volatiles on the part side.  Read the technical white paper about the technology online at www.rubbercraft.com

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