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Sauereisen - Model No. 10 -Insultemp Cement
Sauereisen Insultemp Cement No. 10 is primarily used where high electrical insulation and thermal conductivity are desired. No. 10 is a phosphate-bonded material that cures by a chemical-set and is ideal for potting applications subject to high temperature and/or thermal shock. Formulated as an alumina-filled cement, Insultemp Cement No. 10 is non-corrosive and compatible for applications with ceramics, glass and most metals. The material is supplied in Powder form and mixes with water to form a cement paste.
- Heat conductive and thermal shock resistant.
- High electrical resistance.
- Withstands temperatures to 2200oF (1204oC).
- Low shrinkage.
- Chemical set.
- Odorless.
Sauereisen No. 10 Powder should be thoroughly remixed before using. Weigh approximately 100 parts Powder and 16 parts water. Place Powder in a clean mixing container. Add water to the Powder at one time while mixing - do not add water gradually. Continue mixing until a smooth, uniform consistency is obtained. Mixing may be done with a slow-speed mixer or by hand with a spatula.
Minimum amount of water should be used as excess water reduces mechanical strength, increases shrinkage and delays set time. Failure of cement to adhere indicates setting has begun. Maintain batch sizes accordingly to limit wastage. Do not attempt to retemper the cement by adding more water. Porous substrates may require dampening with Sauereisen Thinning Liquid No. 14 prior to cement application.
- Coefficient of thermal expansion (ASTM C372): 5.0x10-6/Fo(9.0x 10-6/Co)
- Color: White
- Compressive strength (ASTM C579): 2500 psi (175.8 kg/cm2)
- Density (ASTM C20): 146pcf (2.34gm/cm3)
- Dielectric constant (ASTM D150): 6.86
- Dielectric strength @ 70°F (21 °C) (ASTM D149): 55-63 Volts/mil (2090-2394 Volts/mm)
- Maximum service temperature: 2400°F(1316<>C)
- Mix ratio (Powder:water, by weight): 100:16
- Tensile strength (ASTM C307): 300 psi (21.1 kg/cm2)
- Thermal conductivity: 16.2-9.7 Btu-in/ft2-hr-°F (5.47 - 3.27 x 10-3Cal-cm/cm2-sec-°C)
- Volume resistivity @ 70°F (21 °C) (ASTM D1829): 10.8 x 1011 ohm-cm
- Working time: 30 minutes
Insultemp Cement No. 10 hardens with an internal chemical-setting action after 18-24 hours at ambient temperature. Working time of Cement No. 10 when Powder is mixed with water is approximately 30 minutes at 70oF.
If it is desired to accelerate the cure, low temperature oven drying at 180oF can be used. Avoid steaming while drying. Proper curing of No. 10 is critical to developing maximum strengths. If the cement will be exposed to elevated temperatures, constant water immersion or steam environments, consult Sauereisen for an appropriate drying schedule recommendation.
For higher humidity resistance where it is impractical to fire the cement, a moistureresistant lacquer or silicone coating should be applied to the exposed surfaces.
Standard packaging for Insultemp Cement No. 10 is 50-pound bags. Smaller packaging options include 1- quart cans and 1-gallon cans.
All equipment should be cleaned with soap and water before No. 10 cures. If removal is required after the cure, consult Sauereisen for recommendations.
Sauereisen Insultemp Cement No. 10 Powder has a shelf life of one year when stored in unopened, tightly sealed containers in a dry location at 70oF. If there is a doubt as to the quality of the material, consult Sauereisen.
Consult Material Safety Data Sheets and container label Caution Statements for any hazards in handling this material.