3M Scotch-Weld Polyurethane Reactive (PUR) Easy 250 Wood Adhesive EZ250060 Datasheet 3M Scotch-Weld Polyurethane Reactive (PUR) Easy 250 Wood Adhesive EZ250060

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  • Description for 3M Scotch-Weld Polyurethane Reactive (PUR) Easy 250 Wood Adhesive EZ250060

    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.

    *See Terms of Use Below

    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) Low, 7,000
    Color Off-White, White
    Density (g/cm³) 8.8 (Lbs/Gallon)
    Key Specifications Registered to ISO 9001 standards
  • Technical Data for 3M Scotch-Weld Polyurethane Reactive (PUR) Easy 250 Wood Adhesive EZ250060

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1-Part
    • Material Form
      • Liquid
    • Substrate
      • Plastic - Select plastics
      • Wood - Maple, Wood based surfaces
    • Chemistry
    • Application Method
      • Dispenser - 3M™ Scotch-Weld™ Polyurethane Reactive Adhesive Applicator, 3M™ Scotch-Weld™ Polyurethane Reactive (PUR) Easy 250 Adhesive Applicator
    • Cure Method
      • Moisture / Condensation Cure - Moisture curing
    • Color
      • Off-White
      • White
    • Key Specifications
      • International Organization for Standardization - Registered to ISO 9001 standards
    Specifications
    Cure Specs
    Application Temperature (°F) 250
    Viscosity (cPs) Low, 7,000 Test Method
    Fixture or Handling Strength Time (min) 1.00 Test Method
    Set Time (min) Medium, 0.25 to 2.00 Test Method
    Work / Pot Time (min) 2.00 Test Method
    Open Time (min) 1.50 to 4.00, >2.00
    Bond Strength
    General Bond Strength (psi) Rapid, 1,210, 1,725, 1,845, 1,830, 1,910 Test Method
    Shear Strength (psi) 1,910, 380 Test Method
    Tensile Strength (psi) 4,200 Test Method
    Hardness
    Shore D Hardness 60 Test Method
    Elongation (%) 675 Test Method
    Other Properties
    % Solids (%) 100
    Density (g/cm³) 8.8 (Lbs/Gallon) 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) 6 Unopened containers, 12
    Not Good For
    Don't Use With Metal, Glass
  • Best Practices for 3M Scotch-Weld Polyurethane Reactive (PUR) Easy 250 Wood Adhesive EZ250060

    *See Terms of Use Below

    1. 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.

    2. 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.

    3. 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.

    4. 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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    *See Terms of Use Below

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Fixture or Handling Strength Time Test Methods
Fixture or Handling Strength Time Fixture-Handling Strength Test Method
1.00 min 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.
Set Time Test Methods
Set Time Test Method
Medium
0.25 to 2.00 min The minimum amount of time required between when the bond is made and when it will support a 5 psi tensile load
Viscosity Test Methods
Viscosity Test Method Temperature
Low
7,000 cPs Measured on Brookfield viscometer with Thermosel using spindle #27. 121°C
Work / Pot Time Test Methods
Work / Pot Time Test Method
2.00 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
Rapid
1,210 psi 10,080 min 25°C 50 % Maple 10 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 60 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
1,845 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
1,830 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
1,910 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
4,200 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
1,910 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
380 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
675 % Test Method: ASTM D638, Dwell/Cure Time: 7.0, Dwell Time Units: day, Temp C: 23C, Notes: Die C, measured on .011" - .017" thick films
Shore D Hardness Test Methods
Shore D Hardness Shore Hardness Test Method
60 ASTM D2240, Temp: 23C
Density Test Methods
Density Test Method
8.8 (Lbs/Gallon) Molten