Dow 93-006-6 Aerospace Sealant
Application Type Bond, Coat, Seal, Gasketing: Formed-in-place gasket 1 Part or 2 Part 2-Part Material Form Paste, Silicone elastomer Substrate Cork, Epoxy, Phenolic, Glass, Aluminium, Metals, Titanium, Plastic, Polyester, Cured silicone rubber, Stainless Steel, Silicone resin laminates Industry Aerospace, Aircraft Manufacturer Dow Chemistry Silicone elastomer Application Method Trowel Cure Method Base/Catalyst Cure Temperature (°C) 20 to 25, 20 to 25, 20 to 25, 232 Cure Time (min) 2,880, 10,080, 1,440, 1,440, 10,080 Viscosity (cPs) 800000 (mPa.s) Color Gray Density (g/cm³) 0.001
Technical Data for Dow 93-006-6 Aerospace Sealant
1 Part or 2 Part
- Elastomer - Silicone elastomer
- Silicone - Silicone elastomer
- Dispenser - Air-injected with standard equipment
- Spatula/Trowel - Trowel
- Other - Cast
- 2-Part Cure - Base/Catalyst
Cure Temperature (°C) 20 to 25, 20 to 25, 20 to 25, 232 Test Method Cure Time (min) 2,880, 10,080, 1,440, 1,440, 10,080 Test Method Viscosity (cPs) 800000 (mPa.s) Work / Pot Time (min) 360 Thixotropic Thixotropic Mix Ratio 10:1 (by volume), 10:1 (by weight)
Shear Strength (psi) 2.4 (Mpa), 1.4 (Mpa) Test Method Tear Strength (piw) 4 (kN/m) Test Method Tensile Strength (psi) 30 (Mpa), 2.1 (Mpa) Test Method
Shore A Hardness 42, 30 Test Method Elongation (%) 180, 160 Test Method
% Solids (%) 99 Density (g/cm³) 0.001
Shelf Life Details When stored at or below 32°C (89.6°F) in the original unopened containers, DOW CORNING 93006 Aerospace Sealant has a usable life of 12 months from the date of production. Shelf Life Type From the date of production Shelf Life (mon) 12
Best Practices for Dow 93-006-6 Aerospace Sealant
DOW CORNING 93-006 Aerospace Sealant adheres well to primed surfaces of most materials used in the aerospace and aircraft industries. Typical materials include glass, cured silicone rubber, cork, phenolic, polyester, epoxy, silicone resin laminates and most metals including stainless steel, titanium and aluminum. It may not adhere well to polyethylene or certain plastics and organic materials (including rubber), which bleed or exude plasticisers. Stronger and more uniform bonds are obtained by preparing metal and plastic surfaces with DOW CORNING® 1200 Primer. For best results: Clean the surface with a chlorinated solvent (see Handling Precautions) and a slightly abrasive pad or a coarse lint-free cloth.
Rinse cleaned surface with acetone or methyl ethyl ketone.
Apply a thin coat of primer by dipping, brushing or spraying.
Allow the primer to dry for at least 1 hour, according to relative humidity.
Silicone rubber surfaces should not normally be primed, but only roughened slightly with abrasive paper and rinsed with acetone.
The catalysed material can be cast, troweled or air injected with standard equipment.
The catalyst is added in a ratio of 10 parts of base to 1 part catalyst by weight. For best results the base should be thoroughly de-aired in standard vacuum equipment for 2 hours at greater than 650mm of mercury vacuum. The catalyst may then be added to the base in an air free mixer, such as a Semco® Pressure Mixer, model S1350 or S1378. Hand mixing may also be used if, after mixing, the product is deaired in vacuum for about 30 minutes.
When using 1 catalyst, DOW CORNING 93-006 Aerospace Sealant will have a working time of 1 hour with a cure time of 10 hours. However if 6 catalyst is used, the working time will be 6 hours and the cure time 48 hours. With either catalyst, DOW CORNING 93-006 Aerospace Sealant will achieve optimum physical properties in 7 days.
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Cure Temperature Test Methods
|Cure Temperature||Cure Time Test Method|
|20 to 25°C|
|20 to 25°C||Mechanical properties - 24 hours at room temperature|
|20 to 25°C||Mechanical properties - 24 hours room temperature and 7 days 232°C (449.6°F)|
|232°C||Mechanical properties - 24 hours room temperature and 7 days 232°C (449.6°F)|
Cure Time Test Methods
|Cure Time||Test Method|
|2,880 min||Cure time is defined as time required for the Durometer hardness to reach 30 points (Shore A).|
|1,440 min||Mechanical properties - 24 hours at room temperature|
|1,440 min||Mechanical properties - 24 hours room temperature and 7 days 232°C (449.6°F)|
|10,080 min||Mechanical properties - 24 hours room temperature and 7 days 232°C (449.6°F)|
Shear Strength Test Methods
|Shear Strength||Type||Substrate||Test Time||Test Temperature||Test Method|
|2.4 (Mpa)||Lap shear strength||Aluminium||86,400 sec||Room temperature||CTM 0243, On aluminium, primed with DOW CORNING 1200 primer and air dried for 60 minutes.|
|1.4 (Mpa)||Lap shear strength||Aluminium||86400 (Seconds), 604800 (Seconds)||Room temperature, 232 (C)||CTM 0243, On aluminium, primed with DOW CORNING 1200 primer and air dried for 60 minutes, Mechanical properties - 24 hours room temperature and 7 days 232°C (449.6°F)|
Tensile Strength Test Methods
|Tensile Strength||Test Time||Test Temperature||Test Method|
|30 (Mpa)||1,440 min||Room temperature||CTM 0137A, ASTM D412|
|2.1 (Mpa)||86400 (Seconds), 604800 (Seconds)||Room temperature, 232 (C)||CTM 0137A, ASTM D412, Mechanical properties - 24 hours room temperature and 7 days 232°C (449.6°F)|
Tear Strength Test Methods
|Tear Strength||Test Time||Test Temperature|
|4 (kN/m)||1,440 min||Room temperature|
Elongation Test Methods
|180 %||CTM 0137A, ASTM D412, 24 hours at room temperature, at Break|
|160 %||CTM 0137A, ASTM D412, 24 hours room temperature and 7 days 232°C (449.6°F), at Break|
Shore A Hardness Test Methods
|Shore A Hardness||Shore Hardness Test Method||Hardness Temperature|
|42||CTM 0099, ASTM D2240, 24 hours at room temperature||25°C|
|30||CTM 0099, ASTM D2240, 24 hours room temperature and 7 days 232°C (449.6°F)||232°C|