Parker Chomerics CHO-BOND 1018 is
a nickel-plated aluminum filled, two-
component electrically conductive
polythioether designed for use as a
fillet, gap filler and seam sealant on
electrical enclosures for EMI shielding.
Its nickel-plated aluminum filler provides
excellent corrosion resistance against
MIL-DTL-5541 Type I & Type II coated
aluminum substrates which reduces
maintenance costs and increases aircraft
availability with minimal downtime.
Because of this, CHO-BOND 1018 is
galvanically compatible with Parker
Chomerics CHO-SEAL® 6502 nickel-
aluminum filled silicone and CHO-SEAL
6503 nickel-aluminum filled fluorosilcone
gaskets.
CHO-BOND 1018’s custom formulated
polythioether polymer system offers
excellent fluid and fuel resistance to
jet fuels, de-icing solutions, hydraulic
fuels and more. It is also silicone-free,
removing any silicone contamination
concerns while also being easily
paintable – eliminating the need and cost
of an additional primer application.
Overcoat adhesion qualified with MIL-
PRF-23377 Type II Class N and MIL-
DTL-53022 Type II epoxy primers.
Product Features
• Good EMI shielding
• Excellent galvanic corrosion resistance
against aluminum substrates
• Silicone free, easily paintable
• Packaged in a pre-measured kit
• No weighing required, mix and
dispense in same package,
minimizes process scrap
• Lightweight
• More coverage per gram of material,
minimal weight added to assembly
or vehicle
• For overhead or vertical surfaces
Contact Information
Parker Hannifin Corporation
Chomerics Division
77 Dragon Court
Woburn, MA 01801
phone 781 935 4850
fax 781 933 4318
chomailbox@parker.com
parker.com/chomerics
Typical Applications
• Ballistics and guided weaponry
• Ground/transport vehicles
• Military shelters and containers
• Planes, drones, helicopters
• Defense radar systems
• Applications where corrosion
resistance is necessary combined
with exposure to fuels and fluids
CHO-BOND
®
1018
Two Component Electrically Conductive
Nickel-Plated Aluminum Polythioether Sealant
CHO-BOND
®
1018 Product Information
parker.com/chomerics
© 2023 Parker Hannin Corporation. All rights reserved. CHODS1009 March 2023
Typical Properties CHO-BOND 1018 Test Method
Polymer Polythioether N/A
Filler Nickel-Plated Aluminum N/A
Mix Ratio, A / B (by weight) 2-part prepackaged kit N/A
Color A: Gray, B: Black N/A (Q)
Consistency Medium Paste N/A (Q)
Maximum DC Volume Resistivity 0.200 ohm-cm CHO-95-40-5555* (Q/C)
Minimum Lap Shear Strength** 100 psi (689 kPa) CHO-95-40-5300* (Q/C)
Tensile 125 psi (862 kPa) MAT-1014 (Q/C)
Elongation 30% MAT-1014
Specific Gravity 2.1 ASTM D792 (Q/C)
Hardness Shore A 73 ASTM D2240 (Q/C)
Continuous Use Temperature -45C to 125C (-49F to 257F) N/A (Q)
Elevated Temperature Cure Cycle 3 days @ 70C (160F) N/A
Room Temperature Cure 1 week** N/A (Q)
Working Life 2 hours N/A (Q)
Tack Free Time 8 hours N/A (Q)
50% Cure Time 16 hours N/A (Q)
Time to Paint Over 3 days*** N/A (Q)
Shelf life, months from date of manufacture, frozen (-40°C) unopened 6 months N/A (Q)
Minimum thickness recommended 0.010 in (0.25 mm) N/A
Maximum thickness recommended 0.250 in (6.35 mm) N/A
Volatile Organic Content (VOC) 128 g/l Calculated
Theoretical Coverage - Area at 0.010” Thick per Pound (454 grams) 1310 in
2
(8451 cm
2
) N/A
Theoretical Coverage - Length of an 1/8” Diameter Bead per Pound (454 grams) 89 feet (27.1 m) N/A
Product Weight (grams) Packaging Part Number Primer Included
CHO-BOND 1018
280
6 fluid ounce SEMCO cartridge with dasher rod
50-01-1018-0000 Not Required
CHO-BOND 1018
120
2.5 fluid ounce SEMCO cartridge with dasher rod
50-02-1018-0000 Not Required
Notes: N/A – Not Applicable, (Q/C) - Qualification and Conformance Test, (Q) - Qualification Test
* This test Method is available from Parker Chomerics.
** Cure is sufficient for handling in 24 hours. Full specification properties are developed after 1 week (168 hours) at room temperature.
*** Chomerics’ recommend minimum time to wait before applying paint over CHO-BOND 1018. Material will continue to cure after painting.
Please refer to Parker Chomerics Surface Preparation and CHO-BOND Polythioether Application documents for information regarding the proper surface
preparation, primer application (if required), and use of these compounds.
Request a Sample
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CHO-BOND
®
1018 Ordering Information
Where to Buy
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