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Description for 3M Scotch-Weld Urethane Adhesive EC-3532 B/A
It is a two-component, polyurethane adhesive which cures at room temperature or with heat to form tough, impact-resistant structural bonds, excellent adhesion to many primed or painted metal and plastic substrates.Brand Scotch-weld Chemical Resistance Salt spray, Chemical Resistance: Fluid Resistance: Water Application Type Bond 1 Part or 2 Part 2-Part Material Form Liquid Substrate Aluminum, FRP, PlexiGlass, Many Painted metal, Nylon, Lexan, Rigid PVC, Rubber, Cold rolled Steel, Wood, Polystyrene, ABS, Abraded Aluminum, Metal, Plastic, Polycarbonate, Primed Steel, Etched Aluminum, Many Primed Metal, Steel, Solvent Wiped Aluminum, Abraded Steel , Solvent Wiped Steel, Primed steel Manufacturer 3M Chemistry Polyurethane, Urethane Application Method Trowel, Spatula Cure Method 2-Part Cure, Heat cure, Room Temperature cure Cure Temperature (°C) 20 to 25 Room Temperature, 24 Cure Time (min) 1,440, Fast Viscosity (cPs) 30,000, Non-sag Color Brown (cured) High Temperature Resistance (°C) 82 Low Temperature Resistance (°C) -40 Durability Tough -
Technical Data for 3M Scotch-Weld Urethane Adhesive EC-3532 B/A
Overview
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Chemical Resistance
- Chemical Resistance : Fluid Resistance : Water Resistance - Water
- Chemical Resistance - Salt spray
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Application Type
- Adhesive - Bond
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1 Part or 2 Part
- 2-Part
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Material Form
- Liquid
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Substrate
- Glass - PlexiGlass
- Metal - Many Painted metal, Many Primed Metal
- Aluminum - Abraded Aluminum, Etched Aluminum, Solvent Wiped Aluminum
- Steel - Cold rolled Steel, Primed Steel, Abraded Steel , Solvent Wiped Steel, Primed steel
- Plastic - Lexan
- Nylon
- Polycarbonate
- Polyvinyl chloride (PVC) - Rigid PVC
- Polystyrene (PS) - Polystyrene
- ABS
- Rubber
- Wood
- Composites - FRP
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Industry
- Industrial - Structural bonds
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Chemistry
- Polyurethane - Urethane
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Application Method
- Flow - Flow equipment
- Spatula/Trowel - Spatula, Trowel
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Cure Method
- Room Temperature / Air Dry - Room Temperature cure
- Heat - Heat cure
- 2-Part Cure
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Color
- Brown - Brown (cured)
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Brand
- Scotch-weld
Specifications
Cure Specs
Cure Temperature (°C) 20 to 25 Room Temperature, 24 Test Method Cure Time (min) 1,440, Fast Test Method Viscosity (cPs) 30,000, Non-sag Test Method Fixture or Handling Strength Time (min) 20 to 30 Work / Pot Time (min) 5.00 to 15 Test Method Mix Ratio 1:1 (by volume), 100:109 (by weight) Bond Strength
General Bond Strength (psi) Excellent Shear Strength (psi) 2,500, 2,200, 300, 700 Test Method Material Resistance
High Temperature Resistance (°C) 82 Impact Resistance Impact-resistant Low Temperature Resistance (°C) -40 Moisture/Humidity Resistance Humidity Resistance Hardness
Durability Tough Elongation (%) 96 Flexibility Semi-rigid, Flexible Business Information
Shelf Life Details This product has a shelf life of one year from date of shipment when unopened and properly stored. Store product at 60-80°F (16-27°C) for maximum storage life. Higher temperatures reduce normal storage life. Lower temperatures cause increased viscosity of a temporary nature. Rotate stock on a “first in-first out” basis. Shelf Life Temperature (°F) 60 to 80 Shelf Life Type From date of shipment Shelf Life (mon) 12 -
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Best Practices for 3M Scotch-Weld Urethane Adhesive EC-3532 B/A
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Surface Preparation
Surfaces to be bonded must be dry and free from rust, oil, grease and wax. Surfaces can be cleaned with an abrasive such as 3MTM Coated Abrasives (240 grit) followed by wiping with a solvent such as MEK (methyl ethyl ketone), MIBK (methyl isobutyl ketone) or Acetone.
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Cure Temperature Test Methods
Cure Temperature | Cure Time Test Method |
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20 to 25°C Room Temperature | |
24°C | Full Cure |
Cure Time Test Methods
Cure Time | Test Method |
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1,440 min | Full Cure |
Fast |
Viscosity Test Methods
Viscosity | Test Method | Temperature |
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30,000 cPs | 24°C | |
Non-sag |
Work / Pot Time Test Methods
Work / Pot Time | Test Method | Temperature |
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5.00 to 15 min | 100 grams mixed | 24°C |
Shear Strength Test Methods
Shear Strength | Type | Substrate | Test Temperature | Test Method |
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2,500 psi | Overlap shear strength | Etched Aluminum | -40°C | Test specimens were 1/2-inch overlap, 1-inch wide with .005-inch thick bondlines pulled at a testing rate of .1-inch/min |
2,200 psi | Overlap shear strength | Etched Aluminum | 82°C | Test specimens were 1/2-inch overlap, 1-inch wide with .005-inch thick bondlines pulled at a testing rate of .1-inch/min |
300 psi | Overlap shear strength | Etched Aluminum | 24°C | Test specimens were 1/2-inch overlap, 1-inch wide with .005-inch thick bondlines pulled at a testing rate of .1-inch/min |
700 psi | Overlap shear strength | Polycarbonate | 24°C | Test specimens were 1/2-inch overlap, 1-inch wide with .005-inch thick bondlines pulled at a testing rate of .1-inch/min |

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