"Clean, Safe, Affordable Propulsion Through Innovation"

Fuel Fabrication

SPG is the world leader in the formulation, casting, and processing of high regression rate hybrid rocket fuels. Our fuels technology allows us to design formulations for specific attributes such as regression rate, structural strength, glass transition temperature and toughness among others. In addition, our base fuel matrix is highly hydrophobic which enables formulations using high-energy additives such as aluminum, lithium hydride, magnesium or boron.

SPG also has substantial experience in composite structural wrapping of fuel grains. Flight weight combustion chambers can be built with composite winding directly bonded to the fuel grain. Our composite overwrap technology works as both a stiffener and a liner allowing close to 100% fuel utilization.

SPG can formulate, mix, cast and process grains up to 34 in. in outer diameter and up to 18 ft. long (approximately 5000 lbm.).

Our processing techniques can easily be scaled to larger sizes as applications require.