GE Plastics introduced exterior wall systems for the U.S. air defense

U.S. Air Force National Guard (ANG) is seeking economic rather than flammable polyurethane foam solutions to reserve civil defense air defense munitions used .

ANG key requirements of the solution are: non-combustible materials with properties, and does not release harmful substances ; is a way to prevent the fragmentation of non-metallic barrier system ; able to absorb shock energy , transfer or avoid explosive material surrounding the induction explosion ; may be exceptional to maintain structural rigidity .Wholesale masking tape


Through a series of selection , ANG chose GE Plastics company 's LAST-A-FOAM FR-3700 material. Explosion energy research results show that the material density is 7 lbs / cubic foot , absorb explosive energy density is the most suitable .Masking tape


The researchers used a common plastic Blast-Tamer exterior wall system built cubicles , in order to ensure the accuracy of the test , in addition to placing explosives in the compartment , the house is still filled with sand. Near the small compartment , place heavy pound of C-4 plastic explosives, dynamite inside the house and then gradually increase the size of the package until the compartments of equal size , to determine the worst-case scenario .Washi tape


As expected due to the small compartment indeed completely destroyed after blasting , but close to the C-4 plastic explosives failed to explode. In the process, part of the explosive force of the absorbing material is subsequently transferred from the explosive force of the explosive material up to the compartment walls, thus avoiding an explosion again. The researchers conducted three tests , each 40-pound bag of explosives inside the house , the last C-4 plastic explosives are intact.Sellotape