DAPCO 3302 Silicone Adhesive – Pint Kit for Aerospace High-Temperature Applications

DAPCO 3302 is a high-temperature silicone adhesive from DAPCO, a trusted supplier of aerospace-qualified sealing and bonding materials used in commercial and military aviation maintenance. Formulated for demanding aerospace applications where standard adhesives fail due to temperature extremes, DAPCO 3302 delivers reliable adhesion and sealing performance across the wide temperature range experienced by aircraft structures from cold-soak at altitude to thermally loaded zones near engines and exhaust systems.

Silicone adhesives like DAPCO 3302 provide unique performance characteristics not available in epoxy, polyurethane, or polysulfide systems — including exceptional thermal stability, UV resistance, weathering resistance, and inherent flexibility. These properties make silicone the material of choice for aerospace applications where thermal cycling, UV exposure, and the need for a flexible bond at both low and high temperatures are all requirements simultaneously.

The pint kit format provides a practical quantity for aerospace MRO operations, large repair events, and maintenance applications where single-cartridge or tube quantities are insufficient but full-gallon packaging would result in excessive material waste.

Technical Information

DAPCO 3302 silicone adhesive is formulated with a polydimethylsiloxane (PDMS) or phenyl-modified silicone polymer that provides its characteristic thermal stability and flexibility. The silicone polymer backbone maintains its molecular structure — and thus its mechanical properties and adhesion — across a much wider temperature range than organic polymer adhesives, enabling reliable performance from cryogenic conditions through elevated service temperatures that would degrade non-silicone adhesive systems.

The inherent flexibility of cured DAPCO 3302 silicone adhesive accommodates the differential thermal expansion between bonded substrates, preventing the interfacial stress buildup that can cause adhesive failure in rigid bond systems during thermal cycling. This flexibility is critical for aerospace assemblies where components with different coefficients of thermal expansion are bonded together and subjected to thousands of thermal cycles throughout the aircraft’s service life.

DAPCO’s aerospace qualification process ensures DAPCO 3302 meets the performance requirements for aerospace use, with batch-level quality control and material traceability supporting the documentation requirements of certified aircraft maintenance operations. Consult the DAPCO 3302 TDS and product qualification documentation for specific performance data and applicable aerospace specifications.

Why Choose DAPCO 3302 Silicone Adhesive?

• ✅ High Temperature Performance — Stable across wide thermal range
• ✅ Flexible Bond — Accommodates thermal cycling between dissimilar materials
• ✅ Aerospace Qualified — DAPCO’s certified aerospace material quality
• ✅ UV and Weather Resistant — Suitable for exterior aircraft applications
• ✅ Pint Kit Format — Practical quantity for MRO maintenance events

Applications

DAPCO 3302 is used in aerospace maintenance for high-temperature zone bonding, exterior skin sealing, access panel adhesion, and general aircraft maintenance applications requiring a qualified, high-temperature silicone adhesive.

Frequently Asked Questions

Q: What is DAPCO 3302 silicone adhesive used for?
A: DAPCO 3302 is used for high-temperature bonding and sealing in aerospace applications — including engine zone areas, exterior aircraft structures, and applications requiring a flexible, thermally stable silicone adhesive.

Q: What is the MPN for DAPCO 3302 Pint Kit?
A: MPN is 12550028.

Q: What temperature range does DAPCO 3302 cover?
A: DAPCO 3302 is rated for high-temperature aerospace service. Refer to the DAPCO 3302 TDS for specific temperature range data applicable to your use case.

Q: Is DAPCO 3302 suitable for exterior aircraft surfaces?
A: Yes. Silicone adhesives are inherently UV and weather resistant, making DAPCO 3302 suitable for exterior aerospace bonding and sealing applications.

Q: Does DAPCO 3302 require a primer?
A: Consult the DAPCO 3302 TDS for substrate-specific primer recommendations. Silicone adhesives may require a primer on some substrates for maximum adhesion performance.