Profile: SealTech specializes in RF sealing, RF welding, dielectric sealing, dielectric welding, heat sealing, and heat welding. Our custom components manufactured from vinyl, vinyl coated nylon, urethane, urethane coated nylon, ethyl vinyl acetate or other exotic materials. Aerospace technology has developed jet planes that offer performance beyond human endurance. We design a bladder to fit inside the helmet and a front and back vest to compress the body.