ExoAir® Trio is a UV-stable, pre-compressed, self-expanding, flexible joint seal. It is a polyurethane foam that is impregnated with a modified acrylic resin and treated with a pressure-sensitive adhesive on one side for ease of installation. ExoAir Trio also includes an additional layer acting as a vapor retarder. When installed, ExoAir Trio expands into the joint to create a seal that is airtight, thermally efficient and vapor permeable.
ExoAir Trio is typically used as a perimeter seal around doors and windows, but can also be used in a variety of other joint applications that require a weathertight, vapor permeable, and thermally-efficient transition. ExoAir Trio can be installed onto vinyl, wood, concrete, aluminum, fiberglass, and other typical construction substrates.
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Tremco compressed tapes are compatible with and can be sealed with silicone, urethane and acrylic sealants. If the tape is sealed, however, the vapor-permeability is reduced due to the moisture vapor transmission value of the sealant. Tremco compressed tapes are UV- and weather-resistant and require no additional seal.
illmod 600, ExoAir Trio and ExoAir Eco are classified as B1 according to DIN 4102 (highly flame-resistant, producing little smoke and no burning droplets).
Tremco manufactures several widths of compressed tapes and the appropriate size should be used in accordance with joint widths. Joints that are not parallel may require the use of more than one width of compressed tape.
Depending on joint size, the installation of Tremco compressed tapes can generally be completed in 20% of the time as compared to a typical sealant joint.
Tremco compressed tape expansion is dependent upon the temperature of the tape at the time of installation. In order to slow the rate of expansion, Tremco compressed tapes should be stored in a cool, dry environment prior to application. The cooler the tape is, the slower it expands.
Tremco compressed tape expansion is dependent upon the temperature of the tape at the time of installation. In order to accelerate the rate of expansion, Tremco compressed tapes should be stored in a warm, dry environment prior to application. The warmer the tape is, the more quickly it expands.
At a temperature of 68°F(20°C), Tremco compressed tapes will fully expand in about 45 minutes. The tapes will expand slower in colder temperatures and faster at higher temperatures.
The self-adhesive is only an installation aid. The compressed tape can be installed and shimmed intermittently to hold the tape in place. After the tape has fully expanded, the shims should be removed. The voids in the tape created by the shims will self-seal through expansion of the tape once the shims have been removed.
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