• Description for 3M 7955MP

    Excellent resistance to harsh environments, this adhesive can withstand splashes of organic solvents, weak acids and bases and salt water, cleaning solutions, germicidals, disinfectants, oils, etc. In addition, it performs well after exposure to humidity and hot/cold cycles.

    *See Terms of Use Below

    Application Type Bond
    1 Part or 2 Part 1 Part
    Material Form Transfer Tape
    Substrate Aluminum, Glass, Metal, plastic, polycarbonate, Polyester, Rigid PVC (unplasticized), Stainless Steel, Plastic: Acrylic, ABS, High surface energy plastics
    Industry membrane switch applications, Transportation: automotive, electronic markets, graphic overlays for membrane switches, telecommunications, flexible circuits
    Manufacturer 3M
    Chemistry Acrylic
    Cure Method Pressure Sensitive
    Color Clear
    Chemical Resistance gasoline, MEK, weak acid, weak base, oil, water, salt water, warm/humid, cleaning solutions, germicidals, disinfectants, oils
    Relative Solvent Resistance Chemical Resistance: splashes of organic solvents, Chemical Resistance: Excellent Solvent
    High Temperature Resistance (°C) Excellent, 204, 149, Performs well after exposure to hot/cold cycles
    Low Temperature Resistance (°C) Performs well after exposure to hot/cold cycles, -35
    Key Specifications UL 969
  • Technical Data

    Overview
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    Specifications
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  • Best Practices

    *See Terms of Use Below

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Shear Strength Test Methods
Shear Strength Type Substrate Test Time Test Temperature Test Method
Excellent
55 (lbs.) Lap shear strength aluminum Peak Load, ASTM D1002-72, (0.5 square inch on #6061 aluminum)
109 psi Lap shear strength Peak Stress, ASTM D1002-72
2000 (grams) Static shear strength aluminum foil to stainless steel 600,000 sec 23°C ASTM D3654 - 1" x 1" sample area - aluminum foil to stainless steel, 2 mil
1000 (grams) Static shear strength aluminum foil to stainless steel 600,000 sec 93°C ASTM D3654 - 1" x 1" sample area - aluminum foil to stainless steel, 2 mil
500 (grams) Static shear strength aluminum foil to stainless steel 600,000 sec 177°C ASTM D3654 - 1" x 1" sample area - aluminum foil to stainless steel, 2 mil
400 (grams) Static shear strength aluminum foil to stainless steel 3,600 sec 232°C ASTM D3654 - 1" x 1" sample area - aluminum foil to stainless steel, 2 mil
200 (grams) Static shear strength aluminum foil to stainless steel 600,000 sec 232°C ASTM D3654 - 1" x 1" sample area - aluminum foil to stainless steel, 2 mil
Tensile Strength Test Methods
Tensile Strength Test Method
51 psi ASTM D2370-82
Peel Strength Test Methods
Peel Strength Type Cure Time Cure Temperature Substrate Chemical Test Time Test Temperature Test Method
47 (ounces/inch) 90° Peel Strength 15 min 25°C Stainless Steel ASTM D3330 modified (90° peel, 2 mil aluminum foil backing), 2 mil
82 (ounces/inch) 90° Peel Strength 4,320 min 25°C Stainless Steel ASTM D3330 modified (90° peel, 2 mil aluminum foil backing), 2 mil
168 (ounces/inch) 90° Peel Strength 4,320 min 70°C Stainless Steel ASTM D3330 modified (90° peel, 2 mil aluminum foil backing), 2 mil
77 (ounces/inch) 90° Peel Strength 4,320 min 25°C Aluminum ASTM D3330 modified (90° peel, 2 mil aluminum foil backing), 2 mil
62 (ounces/inch) 90° Peel Strength 4,320 min 25°C ABS ASTM D3330 modified (90° peel, 2 mil aluminum foil backing), 2 mil
61 (ounces/inch) 90° Peel Strength 4,320 min 25°C Acrylic ASTM D3330 modified (90° peel, 2 mil aluminum foil backing), 2 mil
80 (ounces/inch) 90° Peel Strength 4,320 min 25°C Glass ASTM D3330 modified (90° peel, 2 mil aluminum foil backing), 2 mil
58 (ounces/inch) 90° Peel Strength 4,320 min 25°C Polycarbonate ASTM D3330 modified (90° peel, 2 mil aluminum foil backing), 2 mil
52 (ounces/inch) 90° Peel Strength 4,320 min 25°C Rigid PVC (Unplasticized) ASTM D3330 modified (90° peel, 2 mil aluminum foil backing), 2 mil
66 (ounces/inch) 90° Peel Strength 15 min 25°C Stainless Steel Adhesion Retention after Immersion and Exposure, gasoline - 1 hour RT immersion, 89% 60 min 25°C ASTM D3330 modified (90° peel, 2 mil aluminum foil backing), 5 mil
118 (ounces/inch) 90° Peel Strength 4,320 min 25°C Stainless Steel Adhesion Retention after Immersion and Exposure, MEK - 1 hour RT immersion, 64% 60 min 25°C ASTM D3330 modified (90° peel, 2 mil aluminum foil backing), 5 mil
181 (ounces/inch) 90° Peel Strength 4,320 min 70°C Stainless Steel Adhesion Retention after Immersion and Exposure, weak acid - 4 hour RT immersion, 86% 240 min 25°C ASTM D3330 modified (90° peel, 2 mil aluminum foil backing), 5 mil
115 (ounces/inch) 90° Peel Strength 4,320 min 25°C Aluminum Adhesion Retention after Immersion and Exposure, weak base - 4 hour RT immersion, 84% 240 min 25°C ASTM D3330 modified (90° peel, 2 mil aluminum foil backing), 5 mil
68 (ounces/inch) 90° Peel Strength 4,320 min 25°C ABS Adhesion Retention after Immersion and Exposure, oil (10W30) - 72 hour, 120°F (49°C) immersion, 146% 4,320 min 49°C ASTM D3330 modified (90° peel, 2 mil aluminum foil backing), 5 mil
67 (ounces/inch) 90° Peel Strength 4,320 min 25°C Acrylic Adhesion Retention after Immersion and Exposure, water - 100 hours, 70°F (21°C), 105% 6,000 min 21°C ASTM D3330 modified (90° peel, 2 mil aluminum foil backing), 5 mil
92 (ounces/inch) 90° Peel Strength 4,320 min 25°C Glass Adhesion Retention after Immersion and Exposure, salt water (5%) - 72 hours, 70°F (21°C), 105% 4,320 min 21°C ASTM D3330 modified (90° peel, 2 mil aluminum foil backing), 5 mil
65 (ounces/inch) 90° Peel Strength 4,320 min 25°C Polycarbonate Adhesion Retention after Immersion and Exposure, warm/humid - 7 days, 90°F (32°C) and 90% relative humidity, 131% 7 (days),30 (days) 32°C ASTM D3330 modified (90° peel, 2 mil aluminum foil backing), 5 mil
69 (ounces/inch) 90° Peel Strength 4,320 min 25°C Rigind PVC (Unplasticized) Adhesion Retention after Immersion and Exposure, UV cabinet - 30 days, 70°F (21°C), 147% 240 min 21°C ASTM D3330 modified (90° peel, 2 mil aluminum foil backing), 5 mil
101 (oz./inch) 90° Peel Strength 1,440 min 25°C Adhesion Retention after Immersion and Exposure, Temperature Cycle - I, 148% 240 min 70°C Control is 24 hour RT dwell on stainless steel, 2 mil al foil backing, 90° peel, 12 ipm, 2 , mil
101 (oz./inch) 90° Peel Strength 1,440 min 25°C Adhesion Retention after Immersion and Exposure, Temperature Cycle - II, 148% 960 min -29°C Control is 24 hour RT dwell on stainless steel, 2 mil al foil backing, 90° peel, 12 ipm, 2 , mil
101 (oz./inch) 90° Peel Strength 1,440 min 25°C Adhesion Retention after Immersion and Exposure, Temperature Cycle - III, 148% 60 min 21°C Control is 24 hour RT dwell on stainless steel, 2 mil al foil backing, 90° peel, 12 ipm, 2 , mil
101 (oz./inch) 90° Peel Strength 1,440 min 25°C Adhesion Retention after Immersion and Exposure, gasoline - 1 hour RT immersion, 89% 60 min 25°C Control is 24 hour RT dwell on stainless steel, 2 mil al foil backing, 90° peel, 12 ipm, 2 , mil
101 (oz./inch) 90° Peel Strength 1,440 min 25°C Adhesion Retention after Immersion and Exposure, MEK - 1 hour RT immersion, 64% 240 min 25°C Control is 24 hour RT dwell on stainless steel, 2 mil al foil backing, 90° peel, 12 ipm, 2 , mil
101 (oz./inch) 90° Peel Strength 1,440 min 25°C Adhesion Retention after Immersion and Exposure, weak acid - 4 hour RT immersion, 86% 240 min 25°C Control is 24 hour RT dwell on stainless steel, 2 mil al foil backing, 90° peel, 12 ipm, 2 , mil
101 (oz./inch) 90° Peel Strength 1,440 min 25°C Adhesion Retention after Immersion and Exposure, weak base - 4 hour RT immersion, 84% 4,320 min 25°C Control is 24 hour RT dwell on stainless steel, 2 mil al foil backing, 90° peel, 12 ipm, 2 , mil
101 (oz./inch) 90° Peel Strength 1,440 min 25°C Adhesion Retention after Immersion and Exposure, oil (10W30) - 72 hour, 120°F (49°C) immersion, 146% 6,000 min 49°C Control is 24 hour RT dwell on stainless steel, 2 mil al foil backing, 90° peel, 12 ipm, 2 , mil
101 (oz./inch) 90° Peel Strength 1,440 min 25°C Adhesion Retention after Immersion and Exposure, water - 100 hours, 70°F (21°C), 105% 4,320 min 21°C Control is 24 hour RT dwell on stainless steel, 2 mil al foil backing, 90° peel, 12 ipm, 2 , mil
101 (oz./inch) 90° Peel Strength 1,440 min 25°C Adhesion Retention after Immersion and Exposure, salt water (5%) - 72 hours, 70°F (21°C), 105% 7 (days),30 (days) 21°C Control is 24 hour RT dwell on stainless steel, 2 mil al foil backing, 90° peel, 12 ipm, 2 , mil
101 (oz./inch) 90° Peel Strength 1,440 min 25°C Adhesion Retention after Immersion and Exposure, warm/humid - 7 days, 90°F (32°C) and 90% relative humidity, 131% 240 min 32°C Control is 24 hour RT dwell on stainless steel, 2 mil al foil backing, 90° peel, 12 ipm, 2 , mil
101 (oz./inch) 90° Peel Strength 1,440 min 25°C Adhesion Retention after Immersion and Exposure, UV cabinet - 30 days, 70°F (21°C), 147% 240 min 21°C Control is 24 hour RT dwell on stainless steel, 2 mil al foil backing, 90° peel, 12 ipm, 2 , mil
149 (oz./inch) 90° Peel Strength 1,440 min 25°C Adhesion Retention after Immersion and Exposure, Temperature Cycle - I, 148% 960 min 70°C Control is 24 hour RT dwell on stainless steel, 2 mil al foil backing, 90° peel, 12 ipm, 5 mil
149 (oz./inch) 90° Peel Strength 1,440 min 25°C Adhesion Retention after Immersion and Exposure, Temperature Cycle - II, 148% 4,320 min -29°C Control is 24 hour RT dwell on stainless steel, 2 mil al foil backing, 90° peel, 12 ipm, 5 mil
149 (oz./inch) 90° Peel Strength 1,440 min 25°C Adhesion Retention after Immersion and Exposure, Temperature Cycle - III, 148% 4,320 min 21°C Control is 24 hour RT dwell on stainless steel, 2 mil al foil backing, 90° peel, 12 ipm, 5 mil
149 (oz./inch) 90° Peel Strength 1,440 min 25°C 25°C Control is 24 hour RT dwell on stainless steel, 2 mil al foil backing, 90° peel, 12 ipm, 5 mil
149 (oz./inch) 90° Peel Strength 1,440 min 25°C 25°C Control is 24 hour RT dwell on stainless steel, 2 mil al foil backing, 90° peel, 12 ipm, 5 mil
149 (oz./inch) 90° Peel Strength 1,440 min 25°C Control is 24 hour RT dwell on stainless steel, 2 mil al foil backing, 90° peel, 12 ipm, 5 mil
149 (oz./inch) 90° Peel Strength 1,440 min 25°C Control is 24 hour RT dwell on stainless steel, 2 mil al foil backing, 90° peel, 12 ipm, 5 mil
149 (oz./inch) 90° Peel Strength 1,440 min 25°C Control is 24 hour RT dwell on stainless steel, 2 mil al foil backing, 90° peel, 12 ipm, 5 mil
149 (oz./inch) 90° Peel Strength 1,440 min 25°C Control is 24 hour RT dwell on stainless steel, 2 mil al foil backing, 90° peel, 12 ipm, 5 mil
149 (oz./inch) 90° Peel Strength 1,440 min 25°C Control is 24 hour RT dwell on stainless steel, 2 mil al foil backing, 90° peel, 12 ipm, 5 mil
149 (oz./inch) 90° Peel Strength 1,440 min 25°C Control is 24 hour RT dwell on stainless steel, 2 mil al foil backing, 90° peel, 12 ipm, 5 mil
149 (oz./inch) 90° Peel Strength 1,440 min 25°C Control is 24 hour RT dwell on stainless steel, 2 mil al foil backing, 90° peel, 12 ipm, 5 mil
77 (ounces/inch) 180° Peel Strength Stainless Steel ASTM D3330 modified (180° peel, 2 mil al foil), 2 mil (0.002 inches)
133 (ounces/inch) 180° Peel Strength Stainless Steel ASTM D3330 modified (180° peel, 2 mil al foil), 5 mil (0.005 inches)
Coefficient of Thermal Expansion (CTE) Test Methods
Coefficient of Thermal Expansion (CTE) CTE Test Method
28 x 10(-5) (m/m/C) first heat, ASTM D 696
72 x 10-5 (m/m/C) second heat, ASTM D 696
-6 x 10(-5) (m/m/C) first heat, ASTM D 696
92 x 10(-5) (m/m/C) second heat, ASTM D 696