Spray Mastic Duct Sealant

This non toxic water based product is solvent free and is suitable for residential use.

Spray mastic duct sealant.

Duct seal 321 is an all purpose industrial grade duct sealant for all types of metal duct fiberglass duct board duct fabric and flex duct. It adheres to many surfaces like. Mastic duct sealant while tape can be a quicker and easier fix it tends to be more expensive and less durable in the long run. Red devil offers you one the best mastic sealant solutions around.

Duct sealing and airflow management systems that exceed industry standards and are engineered to ensure fast consistent and accurate installation. The sealant is fiber reinforced and easy to apply by brush gloved hand or putty knife to flex duct duct board and sheet metal air ducts. It dries to a tough flexible and weather resistant seal. A better option is to use mastic air duct sealant.

A premium grade zero voc smooth water based ul listed high pressure high velocity duct sealant for commercial and residential supply and return air duct use. This is a gooey substance which hardens after being applied to your ducts. Water based mastic duct sealant is the best option because it cleans up easier and will hold. 7 mastic is a premium grade sealant used to seal the fabricated joints seams of sheet metal air ducts rigid fiberglass air ducts flexible air ducts thermal insulation crawl space vapor retarders conditioned spaces from air infiltration.

Available in two sizes this mastic is ideal for all manner of hvac air leak repairs. Our sealant is the only option for aerosol sealants that get blown through the ductwork by a computerized system to find and seal leaks from the inside of the air ducts. It includes uv inhibitors for extended outdoor exposure and built in fiber reinforcement for added strength. It is thick and easily applied with a paintbrush or putty knife.

Mastic is an older way of sealing duct leaks that is actually not as effective as sealing with aeroseal. Our products and solutions deliver maximum efficiency unparalleled quality and unmatched savings and to ensure these goals are met we provide thorough training and field support. Dap high temp 100 rtv silicone sealant 10 3 fl oz red duct sealant. It will flow into corners and creases too.