Foster ButylarTM NXT is a self-sealing, aluminum butyl membrane. 

It is comprised of a high-performance black butyl adhesive on a PET/AL/PET laminate film for very low vapor permeance and protection against punctures and environmental damage. The black butyl adhesive is free of any bitumen or asphalt compounds and contains built in reinforcement for added strength. 

FOSTER Adhesive/Sealant81-84NH is a two-component, high strength thermosetting urethane adhesive containing no flammable solvents. 

It is designed to bond various types of low-temperature insulation to themselves and to metal and masonry substrates. After curing, 

it forms a strong, yet flexible bond capable of withstanding thermal shock and mechanical impact.

FOSTER FLEXTRA Sealant95-50 is a one component, elastomer based product used as a vapor barrier sealant in the joints of cellular glass and urethane foam board stock insulations. 

It remains soft and flexible, preventing damage to the insulation due to thermal cycling through a wide range of temperatures.

FOSTER ELASTOLAR Sealant95-44 is a fire resistive, flexible butyl elastomer based vapor barrier sealant. 

It is designed for sealing joints in insulation (except polystyrene foam), metal, and masonry wherever maintenance of a water-tight and air-tight seal is required. It can be used as a joint sealant in low velocity duct air-conditioning systems.It is ideal for sealing the laps of aluminum jacketing to prevent the entrance of moisture.

FOSTER CryolarTM 1K Vapor Stop90-61 is a ready to use, one component, vapor stop sealant for use in cryogenic applications. 

It is specially formulated with select synthetic rubbers to form an elastomeric, vapor barrier film capable of spanning the temperature ranges found in cryogenic applications including LNG, ethylene and ammonia production It is suitable for application to PUR and PIR foam, cellular glass and other rigid insulations in conjunction with aluminum, steel and masonry construction materials.

FOSTER CRYOGENIC ADHESIVE82-77 is a chemically-curing composition which develops high tensile strength and adhesion, 

at room temperature, to a variety of surfaces including metal, wood, and masonry. 

It is supplied at virtually 100% solids enabling immediate bonding between non-porous surfaces without solvent entrapment problems.

FOSTER MONOLAR Mastic60-91 is a tough, flexible, and fire- resistive elastomeric finish for protection of outdoor thermal insulation. 

It contains chlorosulfonated polyethylene rubber (formerly known as Hypalon®*). 

It is an excellent vapor barrier for low temperature insulation on tanks, pipework, ductwork, vessels, and fittings.

FOSTER MONOLAR Mastic 60-90 is a tough, flexible, and fire- resistive elastomeric finish for protection of outdoor thermal insulation. 

It contains chlorosulfonated polyethylene rubber (formerly known as Hypalon®*).

 It is an excellent vapor barrier for low temperature insulation on tanks, pipework, ductwork, vessels, and fittings.

FOSTER 42-24 MAST-A-FAB has a synthetic fiber composition that provides for significantly greater elongation, recovery, and freedom from stress breakage. 

Glass cloth has virtually no elongation and breaks sharply under stress

FOSTER® FOAMSEAL® 30-45N Sealant is a gray vapor barrier sealant designed for use with rigid thermal insulation including polystyrene foam.

 It remains flexible in joints and will not shrink or crack during repeated cycles of high and low temperatures.