Urethanes

Flexobond Series: Urethane adhesives and casting resins.

F 202A | F 329 | F 430 | F 431 | F 431 White | F 442


Flexobond 202A (Two-Part Kit Only)

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Flexobond 202A is a two-part light amber liquid urethane system containing modified polybutadiene. The system does not contain TDI, mercury, lead, asbestos, or MOCA; it gels rapidly and cures to rubbery solids. Flexobond 202A is also found to have good adhesion to many organics and inorganics. It holds little water and should be considered as sealants, encapsulants, and general purpose adhesives. Flexobond 202A may be cured at either ambient or elevated temperatures, and the system may be handled in less than one day at 73°F.

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Resin: 92700
Activator: 97400
Freeze Pak: N/A


Flexobond 329

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Flexobond 329 is a two part non flowing urethane system which does not contain TDI, lead or mercury. This system gels rapidly, and cures to a tough rubbery solid with good adhesion to many substrates. Flexobond 329 can be used as a fairing compound, adhesive or encapsulant. This material is capable of filling large gaps when required. Flexobond 329 may be cured at either ambient or elevated temperatures. It generally can be handled in less than six hours from the initiation of ambient cure.

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Resin: 92729
Activator: 97329
Freeze Pak: 98829


Flexobond 430

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Flexobond 430 is a two-part clear urethane system which does not contain TDI, mercury, or lead. This system has unusually good wetting properties. It gels rapidly and cures to a rubbery solid. The system may be utilized as an adhesive, encapsulant or casting compound. Flexobond 430 may be cured at either ambient temperature or elevated temperature. It generally can be handled in less than six hours from the initiation of ambient cure. This material is similar to the harder Flexobond 431.

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Resin: 92730
Activator: 97430
Freeze Pak: 98848


Flexobond 431

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Flexobond 431, a two-part clear urethane system, is widely used in the medical industry, meets USP XXII, Class VI-50oC/72 hours (ethylene oxide) Testing for Plastics. This urethane system does not contain TDI, mercury, tin or lead. It gels rapidly and cures to a rubbery solid. The system can be utilized as an adhesive, encapsulant or casting compound and has good adhesion to metals, glass, and plastics, especially polycarbonate. It may be cured at either ambient or elevated temperatures and can be handled in six hours from the initiation of ambient temperature cure.

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Resin: 92731
Activator: 97431
Freeze Pak: 98841


Flexobond 431 White

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Flexobond 431 White, a two-part white urethane system, is a flexible polyurethane adhesive that has a thixotropic consistency and contains a white pigment for opacity. This urethane system does not contain TDI, mercury, tin or lead, and gels rapidly to cure to a rubbery solid. The system can be utilized as an adhesive, encapsulant or casting compound and has good adhesion to metals, glass, and plastics, especially polycarbonate. The primary use of Flexobond 431 White is for anchoring electronic components and components leads used on circuit card assemblies. It may be cured at either ambient or elevated temperatures and can be handled in six hours from the initiation of ambient temperature cure.

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Resin: 98915
Activator: 97431
Freeze Pak: N/A


Flexobond 442 (Freeze-Pak Only)

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Flexobond 442 is a thermally conductive flexible urethane resin system for bonding or filleting glass diodes or other stress sensitive components while simultaneously proving a heat flow path. This material has excellent electrical properties, flexibility, and is low outgassing. It is available premixed and frozen in FREEZE-PAKS.

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Resin: N/A
Activator: N/A
Freeze Pak: 98837