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433 High Temperature Aluminium Foil Tape
Updated : March 1996 Supersedes : October 1993 Product Description No. 433 combines an aluminium foil backing (alloy 1100-0) with a silicone adhesive making it a good candidate for high temperature applications - 316 °C or more depending on length of exposure. Physical Properties Not for specification purposes Adhesive Type Silicone (white) Backing Aluminium Foil (alloy 1100-00) Thickness (ASTM D-3652) 90 µm Backing Thickness 50 µm Tape Colour Shiny silver Shelf Life 12 months from date of despatch by 3M when stored in the original carton at 21° C (70° F) & 50 % Relative Humidity Performance Characteristics Not for s pecification purposes Adhesion to Stainless Steel ASTM D-3330
3.3 N/10mm
4.2 N/10mm
7.0 % Temperature Range Maximum Minimum 316 ° C -54 ° C Water Vapour Transmission Rate 1.55 g/m²/24hrs Weight 0.0049kg/m/24mm
Date : March 1996
433 High Temperature
Ideal as a heat reflective wrap along or over asbestos, applied to tubes, engine support structures, missile ground handling equipment, or as a protector from other heat sources such as hot areas in steel mills. Good holding, splicing, patching or general protecting tape on applications involving high temperatures (over 150 °C). Performance range from -54 ° to over 316 °C. Adhesive will gradually thermoset at high temperatures. As it thermosets, the adhesive mass becomes firm and gradually loses its pressure sensitivity but will continue to hold the tape in place. Flame resistant - will not support combustion. Test results reflecting the most severe high temperature conditions indicate the following. No. 433 was applied to flat aluminium panels and conditioned at 316 °C for various periods of time. The various adhesion levels were then measured after the panels had cooled to room temperature. LENGTH OF TIME (HRS.) None 65 200 400 N/100mm 36 19 10 5 Application Techniques Best results are attained when applied to a clean, dry and non dusty surface above 0° C. To improve adhesion ensure firm and even application pressure is applied.
Applications
prevent fogging of glass. Repair tears or ruptures in insulation blankets used on jet engines. To hold insulation on hot air ducts in industry. Splice jumbo rolls of aluminium foil or holding the last lap of narrow width rolls in preparation to annealing the rolls (NOTE: The use of 3M TAPE PRIMER increases the bond on oily surfaces.) As a heat reflective wrap used in conjunction with asbestos, tube, cables, or where otherwise required for high heat protection. Maskant of metal during plastic coating.
Date : March 1996 FEATURES ADVANTAGES BENEFITS Aluminium foil backing. Silicone adhesive. Ultimate protection. Heat reflective. Non-flammable. Wide temperature range. Protects parts from water, dust or chemical damage. Protects from heat damage. Will not aid combustion. Will seal or protect even under extreme temperature conditions. 3M is a trademark of the 3M Company. Values presented have been determined by standard test methods and are average values not to be used for specification purposes. Our recommendations on the use of our products are based on tests believed to be reliable but we would ask that you conduct your own tests to determine their suitability for your applications. This is because 3M cannot accept any responsibility or liability direct or consequential for loss or damage caused as a result of our recommendations. 3M Svenska AB Industri Bollstanäsvägen 3 191 89 Sollentuna Tel: 08-92 22 50 Fax: 08-92 22 88 E-post: kundservice@mmm.com www.3M.se/tejp