Selleys 401 Silicone Adhesive for Gaskets Resists 205 Degrees [Clear]

Silicone 401 RTV is a one part ready to use, acid cure, room temperature vulcanising (RTV), silicone adhesive sealant. It cures rapidly on exposure to atmospheric moisture to form a versatile, durable, resilient silicone rubber. It is available in clear. Uses Silicone 401 is suitable for form-in-place gaskets and for adhesive, sealing and electrical insulating applications in manufacturing and plant maintenance. Technical Features Wide Temperature Tolerance: Remains permanently flexible under operating temperatures from – 60oC to 205oC, and will tolerate short periods of 260oC Good Chemical Resistance: Good resistance to most organic and inorganic chemicals, solvents and oils Primerless Adhesion: Adheres without primer to many metal, glass, ceramic, rigid plastic, rubber painted and wood substrates Non-toxic: Suitable for incidental food contact in food handling equipment and food contact surfaces Excellent Weatherability: Excellent resistance to ozone, UV light and ageing Good Electrical Insulating Properties: Insulating properties are comparable to other insulating rubbers at room temperature, though performs better than many other rubbers at higher temperatures and water has little effect on these properties Application Tips Not recommended for use with petrol, distillate and some other hydrocarbon solvents. These can cause softening and swelling which is undesirable in some applications. Do not use in totally confined joints where sealant is not exposed to atmospheric moisture Chemical compatibility should be tested for each application under consideration Cannot be over-painted Technical Details and Performance Indicative information only, not to be used for setting specifications. Typical Application Properties Consistency Non – sag, gun grade Tack Free Time (25oC, 50% r.h.): 15 – 20 minutes Skin Forming Time 5 to 10 minutes (depending on weather conditions) Cure Time (3mm Section @ 25oC, 50% R.H.): 24 hours Shrinkage During Curing Approximately 3.5% by volume Specific Gravity 1.04 Storage Life (Below 30oC in original unopened container):12 months Typical Mechanical Performance Properties (3 day cure @ 25oC, 50% R.H.) Tensile Strength (MPa) 1.2 Ultimate Elongation % 400 Hardness (Shore A) 25 Tear Strength (N/mm) 5.0 Joint Movement Capability ± 25% Typical Electrical Properties (at Room Temperature) Dielectric Strength kv/mm 21 Dielectric Constant @50Hz to 5MHz 2.6-2.8 Dissipation Factor Tan @50Hz-5MHz 20×10-4 to 5×10-4 Volume Resistivity (ohm-cm) 1×1013 (wet 60oC) 1×1014 (dry 23oC) Typical Thermal Properties Brittle Point -60oC Maximum Continuous Operating Temperatures 205oC Maximum Intermittent Operating Temperatures 260oC