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Description for 3M Scotch-Weld Polyurethane Reactive (PUR) Easy 250 Wood Adhesive EZ250015
A 100% solid, one component, warm temperature applied, moisture curing urethane. This product bond well to wood and wood based surfaces as well as select plastics.Application Type Bond 1 Part or 2 Part 1-Part Material Form Liquid Substrate Select plastics, Wood, Maple, Wood based surfaces Manufacturer 3M Chemistry Polyurethane Cure Method Moisture curing Application Temperature (°F) 250 Viscosity (cPs) 7,000 Color Off-white, White Density (g/cm³) 8.9 (lb/gal) Key Specifications Registered to ISO 9001 standards -
Technical Data for 3M Scotch-Weld Polyurethane Reactive (PUR) Easy 250 Wood Adhesive EZ250015
Overview
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Application Type
- Adhesive - Bond
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1 Part or 2 Part
- 1-Part
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Material Form
- Liquid
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Industry
- Industrial
- Furniture / Wood-Working - wood based surfaces
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Chemistry
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Application Method
- Dispenser - 3M™ Scotch-Weld™ Polyurethane Reactive Adhesive Applicator, 3M™ Scotch-Weld™ Polyurethane Reactive (PUR) Easy 250 Adhesive Applicator
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Cure Method
- Moisture / Condensation Cure - Moisture curing
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Color
- Off-White
- White
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Key Specifications
- International Organization for Standardization - Registered to ISO 9001 standards
Specifications
Cure Specs
Application Temperature (°F) 250 Viscosity (cPs) 7,000 Test Method Fixture or Handling Strength Time (min) 0.25 Test Method Set Time (min) Fast, 0.25 to 2.00 Work / Pot Time (min) 1.50 Test Method Open Time (min) 1.50 to 4.00 Bond Strength
General Bond Strength (psi) Rapid, 980, 1,650, 1,725, 1,690, 1,650 Test Method Shear Strength (psi) 1,650, 550 Test Method Tensile Strength (psi) 3,900 Test Method Hardness
Shore D Hardness 65 Test Method Elongation (%) 750 Test Method Other Properties
% Solids (%) 100 Density (g/cm³) 8.9 (lb/gal) Test Method Business Information
Shelf Life Details Storage: For maximum shelf life, store product at 60°F (16°C) to 80°F (27°C), indoors and protected from exposure to moisture., Products in 10 fluid ounce cartridges have 12 months while all others have a 6 month shelf life in unopened containers., Storage: For maximum shelf life, store product at 60°F (16°C) to 80°F (27°C), indoors and protected from exposure to moisture., Products in 10 fluid ounce cartridges have 12 months while all others have a 6 month shelf life in unopened containers. Shelf Life Temperature (°F) 140 to 176, 140 to 176 Shelf Life (mon) 12, 6 Unopened containers Not Good For
Don't Use With metal, glass, substrates that exceed 275°F (135°C) -
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Best Practices for 3M Scotch-Weld Polyurethane Reactive (PUR) Easy 250 Wood Adhesive EZ250015
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Surface Preparation
Apply to clean, dry surfaces. Remove oil, grease and other contaminants by wiping with isopropyl alcohol.* For fiber reinforced plastics and other materials that are often contaminated with mold release agents, it is recommended that the surface be solvent wiped, abraded and solvent wiped.* For additional information, see section on surface preparation.
Note: When using solvents, extinguish all ignition sources, including pilot lights, and follow the manufacturer’s precautions and directions for use.
All wood should be dry and free of contaminants such as sawdust, dirt or other substances that may interfere with the adhesive bonding process. If the surface to be bonded contains a coating or finish, bonds should be made and evaluated to ensure proper adhesion. It may be necessary to evaluate other 3M™ Scotch-Weld™ Polyurethane Reactive (PUR) Easy 250 Wood Adhesive products that are better suited to bond plastic surfaces.
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Application
Warm temperature applied
3M™ Scotch-Weld™ Polyurethane Reactive (PUR) Easy 250 Wood Adhesive Cartridges can only be dispensed through the 3M™ Scotch-Weld™ Polyurethane ReactiveAdhesive Applicator or the 3M™ Scotch-Weld™ Polyurethane Reactive (PUR) Easy 250 Adhesive Applicator. Other container sizes can be dispensed through bulk equipment specifically designed for use with hot melt polyurethane reactive adhesives (PUR). For more information on PUR application equipment, contact your local 3M sales representative. All equipment must be used in strict accordance with the recommendations of the manufacturer.After heating to recommended application temperature, apply adequate amount of 3M™ Scotch-Weld™ Polyurethane Reactive (PUR) Easy 250 Wood Adhesive to one of the substrates to be bonded. Join the substrates within the adhesives specified open time and hold/fixture the bonded part until the adhesive has adequately set.
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Curing
Cure Time: The cure rate will vary depending on air temperature, relative humidity, substrate type and bond line thickness. Cure rate is more rapid on wood (moisture rich substrate) than on plastic.
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Clean-Up
Allow products to solidify. Remove uncured waxy material (usually within the first 20 minutes after application) by scraping with a putty knife or similar tool. For cured material, remove by cutting or sanding. Do not use heat or flame to remove adhesive.
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Fixture or Handling Strength Time Test Methods
Fixture or Handling Strength Time | Fixture-Handling Strength Test Method |
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0.25 min | Time to Handling Strength, Notes: Min time between bond creation and ability to support a 5 psi tensile load. Open and set times determined by RT environment. Higher temps will lengthen open and set times, while lower temperatures will shorten open time and set time. |
Viscosity Test Methods
Viscosity | Test Method | Temperature |
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7,000 cPs | Measured on Brookfield viscometer with Thermosel using spindle #27. | 121°C |
Work / Pot Time Test Methods
Work / Pot Time | Test Method |
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1.50 min | The bonding range of a 1/8" bead of molten adhesive on a non-metallic substrate |
General Bond Strength Test Methods
General Bond Strength | Cure Time | Cure Temperature | Cure Humidity | Substrate | Test Time | Test Temperature | Test Method |
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Rapid | |||||||
980 psi | 10,080 min | 25°C | 50 % | Maple | 0.17 min | 23°C | Maple Overlap Shear Strength (psi) tested @ 73°F (23°C) at various times after bonding. The Maple was conditioned for 7 days at 77°F (25°C)/50% RH prior to bonding |
1,650 psi | 10,080 min | 25°C | 50 % | Maple | 1.00 min | 23°C | Maple Overlap Shear Strength (psi) tested @ 73°F (23°C) at various times after bonding. The Maple was conditioned for 7 days at 77°F (25°C)/50% RH prior to bonding |
1,725 psi | 10,080 min | 25°C | 50 % | Maple | 1,440 min | 23°C | Maple Overlap Shear Strength (psi) tested @ 73°F (23°C) at various times after bonding. The Maple was conditioned for 7 days at 77°F (25°C)/50% RH prior to bonding |
1,690 psi | 10,080 min | 25°C | 50 % | Maple | 4,320 min | 23°C | Maple Overlap Shear Strength (psi) tested @ 73°F (23°C) at various times after bonding. The Maple was conditioned for 7 days at 77°F (25°C)/50% RH prior to bonding |
1,650 psi | 10,080 min | 25°C | 50 % | Maple | 10,080 min | 23°C | Maple Overlap Shear Strength (psi) tested @ 73°F (23°C) at various times after bonding. The Maple was conditioned for 7 days at 77°F (25°C)/50% RH prior to bonding |
Tensile Strength Test Methods
Tensile Strength | Cure Time | Cure Temperature | Test Method |
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3,900 psi | 10,080 min | 23°C | ASTM D638, At Break, Dwell, Die C, measured on .011" - .017" thick films |
Shear Strength Test Methods
Shear Strength | Type | Substrate | Test Temperature | Test Method |
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1,650 psi | Overlap shear Strength | Maple | 23°C | Overlap shear (OLS) strengths were measured on 1" wide 1/2" overlap specimens. These bonds were made individually using 1" x 4" sample coupons. The thickness of the bond line was .003-.006". The thickness of the Maple, .375". The separation rate of the testing jaws was 2" per minute |
550 psi | Overlap shear Strength | Maple | 82°C | Overlap shear (OLS) strengths were measured on 1" wide 1/2" overlap specimens. These bonds were made individually using 1" x 4" sample coupons. The thickness of the bond line was .003-.006". The thickness of the Maple, .375". The separation rate of the testing jaws was 2" per minute |
Elongation Test Methods
Elongation | Test Method |
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750 % | ASTM D638, Dwell/Cure Time: 7.0 days, Temp C: 23C, Die C, measured on .011" - .017" thick films |
Shore D Hardness Test Methods
Shore D Hardness | Shore Hardness Test Method |
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65 | ASTM D2240, Temp: 23C |
Density Test Methods
Density | Test Method |
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8.9 (lb/gal) | Molten |

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