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Av-DEC Hi-TAK StructureSeal® is a pre-cured polyurethane sealant with a crush-resistant nonconductive carrier.  The polyurethane sealant demonstrates an exceptional balance between cohesion and adhesion which allows it to provide a consistent seal while remaining easy to remove.  The innovative carrier provides a rigid mechanical stop to increase crush resistance.  Hi-TAK StructureSeal is available in both two-sided sticky roll form and die cut gasket form.  It can be supplied with optional PTFE backing to provide a single-sided sticky alternative.  All four configurations are available in a flame retardant (FR) formulation.  Recommended uses: under floor boards, lavatories, galleys, door sills and on top of stringers.

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Product Specs

 

Part Number Series HT4935 HT4000 HT6935 HT6000
Color  Plum Gray w/PTFE Plum Gray w/PTFE
Frame (Mesh)

Polypropylene
(0.030in thick)

Polypropylene
(0.030in thick)

Nylon
(0.015in thick)

Nylon
(0.015in thick)

Thickness

0.045in
(1.14mm)

0.045in
(1.14mm)

0.045in
(1.14mm)

0.045in
(1.14mm)

Weight/Area

0.026 oz/in²
(0.116 g/cm²)

0.032 oz/in²
(0.139g/cm²)

0.025 oz/in²
(0.110 g/cm²)

0.027 oz/in²
(0.119 g/cm²)

Shelf Life     Indefinite (In original packaging and protected from UV exposure

Service Temperature Guide
(RTCA DO-160G, Sec. 5)

    -65°C to 135°C (-85°F to 275°F)

Corrosion Prevention
Salt Fog 3000hrs (ASTM B117)

    No Corrosion Present

Pressure Retention
(14 CFR part
25 § 25.1438(a))

    Pass, maintained a pressure of 2 atm (29.4 PSI) for 4 days
SDS     SDS information can be requested at

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Av-DEC’s Hi-TAK Fuel Access Panel Gasket, with its “peel and stick” application method and its polyurethane sealant, offers many advantages over commonly-used grease-impregnated gaskets:  ease of use resulting in reduced installation time; no VOCs that evaporate over time and lead to voids that trap moisture which promotes corrosion; infinite shelf life when stored in original packaging and protected from UV exposure;  no use of grease, no need to degrease and reapply grease every five years, no greasy mess.  

The gasket’s aluminum mesh provides a conductive path for lightning strike protection over the life of the gasket and reduces fretting to the wing skin and door surfaces.  Its fuel-resistant polyurethane sealant fills voids and surface imperfections to protect the faying surfaces from moisture intrusion and corrosion, providing a long-term environmental seal.  The  flexible and cohesive nature of the gasket provides a high degree of environmental protection to help reduce or eliminate corrosion, reducing the scrap rate of tank access doors, decreasing cost and saving time, and improving the reliability of the air vehicle.

pdfDownload the Printable Information Sheet

Project Specs

Product Name Fuel Resistant Conductive Gasket
Part Number Series FG323000-XX
Applications

FAA-STC approval for DC-9/MD-80 aircraft, FAA-PMA approval for DC-9/MD-80,
737, 747,757,767,777

 Frame (Mesh) Aluminum
Thickness

Before Compression 30 mils -- After Compression 15-20 mils, depending on clamping force applied

 Weight/Area 0.024 oz/in² (0.105 g/cm²)
Shelf Life Indefinite (in orginal packaging and protected from UV exposure)
Bonding Resistance Meets MIL-B-5087 Class "R", ≤2.5mΩ

Service Temperature Guide

(RTCA DO-160G, Sec. 5)

-65°C to 135°C (-85°F to 275°F)

Corrosion Prevention - Salt Fog 3000hrs
(ASTM B117)                                                                                                                                        

 No Corrosion Present

Fluid Resistance-Spray Test
(RTCA DO-160G,Sec. 11 @ 77°F;
MIL-STD-810,Method 504.1, Procedure 2)

Isopropyl Alcohol Solvent
Denature Alcohol Solvent
Aviation Jet A Fuel
Sky-Kleen Solvent
De-Ionized Water
NaCl Solution
Non-Mineral Based Hydraulic Fluid
Silicone-Based Hydraulic Fluid
Synthetic Hydrocarbon Based Hydraulic Fluid
Mineral-Based Hydraulic Fluid
Mineral-Based Lubricating Oil
Ester-Based Lubricating Oil
Propylene Glycol De-Icing Fluid
Ethylene Glycol De-Icing Fluid
Potassium Acetate De-Icing Fluid
Phosphate Ester-Based Hydraulic Fluid
Potassium Formate De-Icing Fluid

Pressure Retention
(14 CFR part 25 § 25.1438(a))
 Pass, maintained a pressure of 2 atm (29.4 PSI) for 4 days
Lightning Strike (Zone 1A and 2A) Pass*
SDS SDS information can be requested at

*Zone determined per SAE ARP5412, each airframe configuration may be different

Sprayseal

 

Av-DEC SpraySeal® for aircraft interiors is a two-component urethane material that is designed to create a watertight, flexible sealant to protect aircraft surfaces against corrosion. The low viscosity allows the material to be applied via spray or brush application. Av-DEC SpraySeal's transparent nature allows for inspection of the protected surface through the material without removing the sealant from the surface. The adhesive strength and cohesive strength for this material are carefully balanced to create a durable coating that can be cleanly removed for service or access to coated parts. This product is commonly used to protect large contiguous areas as well as irregular or complex structural surfaces, particularly corrosion-vulnerable areas such as under lavatories and galleys.

 

pdfDownload the Printable Information Sheet

Product Specs

Product Name  Av-DEC SpraySeal® Sprayable Sealant
Part Number – 50cc  SF2470-50
Part Number – 1500cc  SF2470-1500
Color  Amber
Reaction Ratio (by weight)  100 : 92.9
Reaction Ratio (by volume)  100 : 100
Specific Gravity , Resin, at 77°F(25°C)  1.08 to 1.10
Specific Gravity , Hardener, at 77°F(25°C)  1.01 to 1.03
Specific Gravity , Mixed, at 77°F(25°C)  1.05 to 1.07
Viscosity, Resin, Cps at 77°F(25°C)  750 to 1,300
Viscosity, Hardener, Cps at 77°F(25°C)  180 to 275
Gel Time 10g Mass at 77°F(25°C)  8 to 14 minutes
Hardness at 77°F(25°C) Shore "A" 40 to 60
Storage Temperature  > 55.4ºF (13ºC)
Shelf life, sealed container  Six months (in original packaging and used within 24 hours after opening)
Service temperature guide  -85ºF to 185ºF (-65ºC to 85ºC)
Storage / Application temperature  >55.4ºF (13ºC)
 Peel Strength (bare 6061)   2.4 piw
 Tensile Strength (ASTM D412)  145 PSI
 Salt Fog 3000hrs (ASTM B117)  No corrosion present
12 Second Vertical Burn
perTitle 14 CFR, 
Part 25-Subpart D, 
§ 25.853(a) compartment interiors,
Appendix F, Part I (A)(1)(ii)
 Passed at all thicknesses tested: 0.060”, 0.080”, 0.235”
 Material Safety Data Sheet  SDS information can be requested at 

 

 

 

QuadABC

 

The Av-DEC® Hi-TAK Quad Seal™ is Av-DEC's recommendation for the best way to achieve a complete and total seal between an aircraft antenna and the surface of the aircraft when a fillet seal is required. This process is achieved when four different Av-DEC® products are combined in conjunction with each other. The Hi-TAK® Polyurethane Conductive Gasket makes a seal between the antenna and aircraft interface, StretchSeal® is used to wrap the coaxial connector for sealing, Self-Leveling Green® is placed at the connector to antenna interface to provide ample sealant, and Thixoflex Black® is used around the antenna for a fillet seal.