3M EZ250120 Scotch-Weld Polyurethane Reactive (PUR) Easy 250 Adhesive Datasheet 3M EZ250120 Scotch-Weld Polyurethane Reactive (PUR) Easy 250 Adhesive

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  • Description for 3M EZ250120 Scotch-Weld Polyurethane Reactive (PUR) Easy 250 Adhesive

    One component, Medium setting, low viscosity ideal for bonding wood and producing thin glue lines.

    *See Terms of Use Below

    Application Type Bond
    1 Part or 2 Part 1-Part
    Material Form Liquid
    Substrate select plastics, Wood, maple
    Manufacturer 3M
    Chemistry Urethane
    Cure Method Moisture
    Application Temperature (°F) 250
    Viscosity (cPs) low, 3,000
    Color Off-White, White
    Density (g/cm³) 8.9 (Lbs/Gallon)

  • Technical Data for 3M EZ250120 Scotch-Weld Polyurethane Reactive (PUR) Easy 250 Adhesive

    *See Terms of Use Below

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1-Part
    • Material Form
      • Liquid
    • Substrate
    • Industry
    • 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
    • Color
      • Off-White
      • White
    Specifications
    Cure Specs
    Application Temperature (°F) 250
    Viscosity (cPs) low, 3,000 Test Method
    Set Time (min) medium, 2.00 Test Method
    Work / Pot Time (min) 4.00 Test Method
    Bond Strength
    General Bond Strength (psi) Rapid, 1,105, 1,805, 1,915, 1,975, 1,950 Test Method
    Shear Strength (psi) 1,950, 620 Test Method
    Tensile Strength (psi) 4,000 Test Method
    Hardness
    Shore D Hardness 60 Test Method
    Elongation (%) 625 Test Method
    Other Properties
    % Solids (%) 100
    Density (g/cm³) 8.9 (Lbs/Gallon)
    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.
    Shelf Life Temperature (°F) 60 to 80, 60 to 80
    Shelf Life (mon) 12, 6
    Not Good For
    Don't Use With metal, glass, substrates that exceed 275°F (135°C)

  • Best Practices for 3M EZ250120 Scotch-Weld Polyurethane Reactive (PUR) Easy 250 Adhesive

    *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. After heating to recommended application temperature, apply adequate amount of 3M™ Scotch-Weld™ Polyurethane Reactive (PUR) Easy 250 Plastic 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. Do not use to bond metal or glass to itself or each other or cure will not occur due to low moisture vapor transmission of the substrate.

      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 Plastic Adhesive products that are better suited to bond plastic surfaces.

    2. Application

      After heating to recommended application temperature, apply adequate amount of 3M™ Scotch-Weld™ Polyurethane Reactive (PUR) Easy 250 Plastic 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.

      Do not use to bond metal or glass to itself or each other or cure will not occur due to low moisture vapor transmission of the substrate.

      (Important: Adhesive heated at application temperature for more than 16 hours should be discarded.)

    3. Curing

      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.

      With the exception of rate of strength build-up, all bonds, unless otherwise noted, were cured for a minimum period of 7 days at 77°F (25°C)/50% RH before testing or subjecting to further conditioning or environmental aging. Bonds were prepared using the suggested procedure for the particular substrate tested

    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.

    5. Testing

      With the exception of rate of strength build-up, all bonds, unless otherwise noted, were cured for a minimum period of 7 days at 77°F (25°C)/50% RH before testing or subjecting to further conditioning or environmental aging. Bonds were prepared using the suggested procedure for the particular substrate tested.

  • Comparable Materials for 3M EZ250120 Scotch-Weld Polyurethane Reactive (PUR) Easy 250 Adhesive

    *See Terms of Use Below

    Spec Engine® Results

    • 3M
      TE200(3M)

      Extrudable with fast set time • Low viscosity • Bond wood and selected plastics • Thin bond lines

    • 3M
      TS230(3M)

      Sprayable/extrudable with long set time • Bond variety of plastics, including polystyrene and polyacrylic • Bond aluminum and glass to plastic and wood

    • Compare All
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Set Time Test Methods
Set Time Test Method
medium
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
3,000 cPs Measured on Brookfield viscometer with Thermosel using spindle #27. 121°C
Work / Pot Time Test Methods
Work / Pot Time Test Method
4.00 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
1,105 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
1,805 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
1,915 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
1,975 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
1,950 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 Cure Humidity Test Method
4,000 psi 10,080 min 25°C 1 % ASTM D638, Die C, measured on .011" - .012" thick films cured for a minmum of 7 days at 77°F (25°C)/50% relative humidity (RH), @ Break(2).
Shear Strength Test Methods
Shear Strength Type Substrate Test Temperature Test Method
1,950 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
620 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
625 % ASTM D638, Die C, measured on .011" - .012" thick films cured for a minmum of 7 days at 77°F (25°C)/50% relative humidity (RH)., at Break
Shore D Hardness Test Methods
Shore D Hardness Shore Hardness Test Method
60 Measured on .090" - .110" thick bars