Kit includes 2 gallons of Spectrum liquid deadener (40 sq ft coverage), a spray gun, a bottle, plastic masking wrap, and wire tape. Spectrum is a high heat, water based viscoelastic polymer damper formulated by Second Skin with mica, talc, calcium and crushed rubber to reduce resonance and thermal transfer. Virtually odorless when wet. No odor or harmful vapors once cured Heat rated to 400 degrees F Proudly MADE IN THE USA Spectrum is a USA made high heat, water based viscoelastic polymer damper. Formulated by Second Skin with mica, talc, calcium and crushed rubber to reduce resonance and thermal transfer. Apply to prepared sheet metal, carbon-fiber, fiberglass or aluminum. A water based primer is recommended prior to installation on aluminum or fiberglass. Stops vibrations on panels in a similar manner to holding a wind chime or bell. Once the vibrations stop, the noise stops. Each gallon of Spectrum will cover 20 sq ft at the recommended 2 coats for a total of 2 mm thickness. Layers should be applied at 1 mm thickness 30-60 minutes apart. Once the final coat has been installed, allow 24 hours before the next layer of product or upholstery is installed. Spectrum may be painted or covered with a bed liner after 30 days.