DAPCO™ 2900 is a two-part, organo-modified silicone sealant with 500° F service temperature that can withstand 2000° F flame while providing adequate thermal insulation to substrates it is coated on. The product has good resistance to fluids found in the aviation environment, including phosphate ester hydraulic fluids and engine oils (MIL-L-7808, MIL-PRF-23699 HTS), and unlike conventional condensation curing silicone products will not degrade in these fluids at 150° F; it will retain its physical integrity after immersion in JRF Type VII, JP-4, and JET-A fuels. Additionally, DAPCO 2900 is formulated to be ‘paint shop friendly’ with no free silicone that can ‘bleed out’ of the cured material, in addition, epoxy-based aerospace primers show excellent adhesion when applied to the sealant.
APPLICATIONS
• Sealing joints against the passage of fluids, air, and flame
• Sealing faying surfaces of mating parts
• Aerosmoothing on high-temperature areas
• Coating for insulating
• Ablative heat shielding
• Aircraft field repair over a variety of materials
• High-temperature sealing in painted areas
