CHO-BOND 2165 is a two component, corrosion resistant, electrically conductive, copper filled, polyurethane sealant
CHO-BOND® 2165 is a stabilized-copper filled, two-component polyurethane conductive sealant specifically designed for aerospace and military applications. CHO-BOND 2165 provides a conductive, corrosion resistant protective compound for aluminum and composite airframes used in conjunction with Parker Chomerics CHO-SHIELD 2000 series EMI coatings. CHO-BOND 2165 is a good compound choice for EMI shielding and electrical grounding applications. This thick conductive paste may be used as fastener fill, gap fill, or repair compound for aircraft. CHO-BOND 2165 achieves full properties in less than 4 hours with a combination room temperature cure plus a 125°C cure minimizing aircraft downtime. Due to material shrinkage, multiple applications may be necessary. CHO-BOND 2165 is designed to be used with CHO-SHIELD 1091 Primer, sold separately. For best adhesion results, CHO-BOND 1075 should be used in conjunction with CHOSHIELD 1086 primer. Typical applications include man portable electronics, radar and communication systems, EMI vents, military ground vehicles, and shelters.
|Typical Properties||Typical Values||Test Method|
|Mix Ratio, A : B (by weight)||100 : 7||N/A|
|Color||Brownish Red||N/A (Q)|
|Consistency||Thick Paste||N/A (Q)|
|Maximum DC Volume Resistivity (Cure Cycle 1)||0.010 ohm-cm||MAT-1003* (Q/C)|
|Minimum Lap Shear Strength** (Cure Cycle 1)||120 psi (827 Kpa)||CHO-95-40-5300*(Q/C)|
|Minimum Peel Strength** (Cure Cycle 1)||1.9 lb./inch (333 N/m)||CHO-95-40-5302* (Q)|
|Specific Gravity (Cure Cycle 1)||2.9||ASTM D792 (Q/C)|
|Hardness (Cure Cycle 1)||70 Shore A||ASTM-D2240 (Q/C)|
|Continuous Use Temperature||- 65 °C to 85 °C (-85 °F to 185 °F)||N/A (Q)|
|Elevated Temperature Cure Cycle||Cure Cyle Option 1: 0.25 hour @ 113°C (235°F) Cure Cyle Option 2: 2.0 hours @ 65°C (150°F)||N/A (Q)|
|Room Temperature Cure||1 week***||N/A (Q)|
|Working Life||1.0 hour||N/A (Q)|
|Shelf Life, unopened||9 months @ 25°C (77°F)||N/A (Q)|
|Minimum thickness recommended||0.004 in (0.10 mm)||N/A|
|Maximum thickness recommended||0.060 in (1.52 mm)||N/A|
|Volatile Organic Content (VOC)||207 g/l||Calculated|
|Theoretical Coverage Area at 0.010” Thick per Pound (454 grams)||900 in2 (5806 cm2)||N/A|
|Theoretical Coverage - Length of an 1/8” Diameter Bead per Pound (454 grams)||60 feet (18.3 m)||N/A|
Features and Benefits
- Two component
- Mix ratio by weight A:B (100: 7), working life doesn’t start until the two components are mixed.
- Stabilized copper filler
- Excellent conductivity 0.010 ohm-cm, very good corrosion resistance, Survives 2,000 hour in salt spray (MIL-STD-810) against a 6060-T6 aluminum substrate with a MIL-DTL-5541, Type II, Class 3 chromate.
- Accelerated heat cure, aircraft fluid resistance, compatible with Parker Chomerics CHO-SHIELD 2000 Series Coatings, can be painted over.
- Chromate free
- Environmentally friendly.
- Thick paste
- Can be used on overhead or vertical surfaces.