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AP 280
A DPM 5979 Qualified silicone heat sink compound
Features
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- A kit of uncatalyzed silicone resin with a select grade of aluminum powder
- Pre-ratioed
- Maintain an excellent bond while exhibiting vibration resistance and flexibility over a very broad temperature range from -100°F to 550°F (-73°C to 288°C) in continuous service
- Putty-like consistency of AP 280 exhibits a high degree of flexibility and adhesion while functioning as an excellent heat sink
- Formulated specifically for use when changing the static port heater element on the DC-9 and MD80 powerplants
- Once the silicon resin and aluminum powder are thoroughly mixed and applied to the substrate, AP 280 will thicken to a “putty-like” consistency
- Mix both components of AP 280 completely prior to applying it to an area
- Use spatula to apply non-curing and pressure sensitive putty/aluminum mix at about 15 mils (381 microns) thick
- Let mix stand for 1 to 2 hours so that it gains “tack”
- Manipulate mix to lay heater element into putty compound
- On QPL For Boeing DPM 5979
- Dielectric Constant ASTM D150: 2.95 @ 100 Hz, 2.90 @ 100,000 Hz
- Dielectric Strength ASTM D 149: 900 v/mil
- Dissipation Factor ASTM D150: 0.004@100 Hz, 0.003 @ 100,000 Hz
- Flash Point: 27°C (80°F)
- Service Temperature: -100°F to 550°F (-73°C to 288°C) continuous
- Shelf Life: The un-mixed kit has a 6 month shelf-life from the date of packaging
- Solids: 52% prior to mixing
- Storage Conditions: Store in a cool, dry, and well ventilated place at a temperature between 40°F and 100°F (4°C to 38°C)
- Viscosity: 5500 cps prior to mixing
- Volume Resistivity ASTM D257: 4 X 10-¹³ OHM-CM
- 1 Oz (28 gram) Kit of Silicone Resin and Aluminum Powder Packaged in Separate Containers (008671)
- 5 Oz (142 gram) Kit of Silicone Resin and Aluminum Powder Packaged in Separate Containers (002788)