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Description :
Dowsil 1080 RTV Silicone Sealant is a one part, Neutral (Non Acid) cure Silicone material of paste like consistency that cures to a rubbery substrate when exposed to moisture in the air. It is essentially recommended for corrosion sensitive materials where acid - curing types of sealants cannot be tolerated or where curing odours may be objectionable. Important Features : Ease of use - one part, no mixing required, Non slumping, Non shrinking. Can be applied to overhead or vertical joints. Does not crack, crumble or dry out in direct Sunlight. Excellent temperature range -65 °C to + 232 °C. Upto 260 °C for short periods. Bonds almost all surfaces: Clean metal-including chrome, painted surfaces, glasses, ceramics, most plastics, non-oily woods, fibrous cement and concrete surfaces. Chemically stable. Excellent resistance to weathering, vibration, moisture, ozone under extreme temperatures. Colors : Clear. Uses : Sealing of lock seams, welds and fasteners in metal fabrication. Sealing dissimilar metals and corrosion sensitive surfaces like Chrome, Copper and Steel. Bonding and sealing appliance parts. As formed-in-place gasket it replaces conventional cork, paper, and rubber gaskets on bear boxes, differential housing pumps and compressors. Oven doors in glass-to-metal applications. Caulking joints in ductwork. Cement surfaces and metal pipes. Attaching signs and sign-letters to metals, masonry and concrete surfaces. Packing : 100 GM tube & 300 GM cartridges (Suitable Caulking guns available). Typical Properties : Flow, sag or sump - nil Tack free time at 25 °C & 50 % RH - 20 to 30 min. Cure time at 25 °C & 50 % RH - 24 hours. After curing for 7 days As Cured - Physical Properties - ASTM D 676 - Durometer Hardness, Shore A - 23 ASTM D 412 - Tensile Strength - 2.0 MPa ASTM D 412 - Elongation % - 500 ASTM D 745 - Brittle point, Deg C 70. As cured - Electrical Properties - ASTM D 257 - Volume Resistivity , Ohm-cm….1.7 * 10 14 ASTM D 149 - Dielectric Strength, Volts-mil…. 390 Caution : Users are advised to conduct their own tests to check suitability to specific applications. Molykote, Dowsil & Dowsil are registered brand names of Dowsil Corporation, USA. |
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