SBIR 95-1 SOLICITATION
LOW COST HIGH QUALITY COMPOSITE FABRICATION FOR THE GENERAL AVIATION INDUSTRY
A process for building high performance composite parts has been developed and used to
construct high quality, low-cost, high fiber volume parts for the US Navy, and many other
commercial interest. These parts have been tested and have proven to be comparable in
properties with other parts which were built using the much more expensive prepreg
autoclave parts. This process, called SCRIMP, is a variation of the vacuum assisted resin
transfer molding processes and has been awarded a US patent. This process has proven to be
extremely cost effective and has been utilized to build parts up to 80 feet long.
E glass/vinyl-ester parts as well as carbon fiber/epoxy parts have been made without the use
of a autoclave and fiber volumes of 55-60% have been achieved with very low void
contents(less than 1%).
It is proposed that the SCRIMP process can be adapted for use in the general aircraft industry
to produce low cost FAA certifiable parts. The goal of this proposal is to demonstrate that
these parts can be built using low cost molds to standards and consistency that will warrant
FAA certification. Low cost molds will be built, integral mold heating systems will be tested
and demonstration parts with epoxy and vinyl-ester matrices will be built.
Potential Commercial Applications:
Composite parts produced with this process have proven to be much less costly than parts
made using autoclave techniques and RTM techniques. These approaches, while clearly
valid, entail high mold building costs and are limited in the size part which can be built
because of the molding pressures which are encountered. The techniques which are used in
SCRIMP molding use inexpensive, single sided tooling and compliant bags for the second
side mold face. These parts exhibit the same quality (i.e.: high fiber volume, low void
content) that was until now only achievable in autoclaves. Scrimp has already been proven
in the marine industry by producing high strength, constantly high quality, low cost
composite parts. It is the intention of SCI to move towards commercialization of low cost
composite parts built using these processes by developing alliances with general aviation
Name and Address of Offeror:
Seemann Composites, Inc.
Post Office Box 3449
Gulfport, MS. 39505
Small Business Innovation Research Program (SBIR) &
Small Business Technology Transfer Program (STTR) Programs
Electronic Management System (EMS)
National Aeronautics and Space Administration (NASA)
The SBIR/STTR EMS site is maintained by Steve
Hu, Hughes STX.
For comments and questions, contact
Updated: Feb. 7, 1996