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ProductType of AdhesiveCarrier/BackingAdhesion To Stainless Steel (ounces per inch)Tensile Strength (pounds per inch)Thickness (mils)Operating Temp. MinimumOperating Temp. Maximum
ISC X-Flex Crash Repair Racers Tape butyl rubber aluminum foil - painted 45
3M 2212 Butyl Mastic Tape [Single-Sided] butyl rubber rubber 35
Nashua 360-17 FoilMastic Butyl Rubber Tape butyl rubber 2 mil aluminum foil - printed 200 20 17 40°F 200°F
Gorilla Waterproof Patch & Seal Tape rubber low density polyethylene (LDPE)
3M 2228 Scotch Rubber Mastic Tape [Single-Sided] butyl rubber rubber 240 150 65 266°F
T-REX Waterproof Tape rubber based low density polyethylene (LDPE) 320 15 28
Duck Brand Waterproofing Tape [Butyl Adhesive / Foil Backing] non-flammable, butyl rubber printed, aluminum foil 255 25 17 -20°F 200°F
Nashua 367-17 FoilMastic Butyl Rubber Sealant Tape [UL 181B-FX listed] butyl rubber 2 mil aluminum foil - printed 90 23 17 40°F 200°F
3M 08578 Butyl Rubber Strip Caulk butyl rubber rubber 118
3M Super Red Putty
Pro Tapes Pro Flex Patch & Shield Tape butyl rubber butyl 320 15 28 -70°F 200°F
3M 2210 Vinyl Mastic Tape [Single-Sided] mastic vinyl 200 90
Nashua 360-45 Heavy Duty FoilMastic Butyl Rubber Tape butyl rubber 2 mil aluminum foil - printed 63 20 45 40°F 300°F
3M 4411 Extreme Sealing Tape acrylic ionomer film 240 13 40 200°F
3M Scotchfil Electrical Insulation Putty butyl rubber rubber 125 32°F 176°F
Nashua 361-11 Waterproofing Repair Tape butyl rubber aluminum foil 75 20 11 40°F 200°F
Shurtape SF-685 ShurMASTIC Butyl Rubber Foil Tape non-flammable, butyl rubber printed, aluminum foil 255 25 17 -20°F 200°F
Shurtape SF-686 ShurMASTIC Indoor/Outdoor Mastic On A Roll non-flammable, butyl rubber printed, aluminum foil 111 23.8 17 -20°F 200°F
3M MP+ Fire Barrier Moldable Putty Stix Putty
Adhesion To Steel - refers to how strong the tape sticks (how hard it is to pull off surface), the spec literally means that if adhesion is 55 then it would take 55 ounces of pull per inch of tape width to break the bond between the tape and the stainless steel test panel when peeled back at a standardized rate and angle
Tensile Strength - the longitudinal strength of the tape which is not the same as tear (transverse) strength; it refers to a tapes ability to withstand force or stress or in other words how hard can you pull on the tape before it breaks apart
Thickness - a higher thickness tape usually equates to a higher performance/quality product
Elongation - measures how stretchable a tape is lengthwise - an elongation of 150% means the tape can be stretched over 1-1/2 times its original length before it breaks or stops stretching

FindTape.com: Butyl Rubber/Mastic Tape Comparison Matrix