With the SG-1 spray gun, you can apply V-blok damping compounds (VB-1X,TC-1) with professional results! The SG-1 was specifically engineered for the application of audio sound control products. It features a press-forged brass/aluminum body and large siphon tube diameter for optimal material flow. Quick disassembly allows for easy, thorough clean up. For use with an air compressor (recommended pressure 60-80 psi). 1 quart capacity.