| Application Type | Bond |
|---|---|
| 1 Part or 2 Part | 1 Part |
| Material Form | Liquid |
| Substrate | Polyacrylic, Aluminum, Glass, Metal, wide variety of plastics, Polycarbonate, PVC, wide variety of wood, ABS, Maple |
| Manufacturer | 3M |
| Chemistry | Urethane |
| Cure Method | Moisture |
| Viscosity (cPs) | 13,000 |
| Color | Off-White, White |
| Density (g/cm³) | 8.7 (Lbs/Gallon) |
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.
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.
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.)
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.
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.
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.
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| Set Time | Test Method |
|---|---|
| fast | The minimum amount of time required between when the bond is made and when it will support a 5 psi tensile load |
| 0.50 min | Open times and set times are based on a room temperature environment. High environmental temperatures lengthen open times and set times while lower temperatures will shorten open times and set times. |
| Viscosity | Test Method | Temperature |
|---|---|---|
| 13,000 cPs | Measured on Brookfield viscometer with Thermosel using spindle #27. | 121°C |
| Work / Pot Time | Test Method |
|---|---|
| 2.00 min | The bonding range of a 1/8" bead of molten adhesive on a non-metallic substrate |
| Shear Strength | Type | Substrate | Test Temperature | Test Method |
|---|---|---|---|---|
| 2,100 psi | Overlap Shear Strength | Polycarbonate | 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 substrates were approximately: Maple, .375", plastics .125"., The separation rate of the testing jaws was 2" per minute., tested @ 73°F (23°C) |
| 1,330 psi | Overlap Shear Strength | Polyacrylic | 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 substrates were approximately: Maple, .375", plastics .125"., The separation rate of the testing jaws was 2" per minute., tested @ 73°F (23°C), Substrate failure |
| 1,350 psi | Overlap Shear Strength | ABS | 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 substrates were approximately: Maple, .375", plastics .125"., The separation rate of the testing jaws was 2" per minute., tested @ 73°F (23°C), Substrate failure |
| 1,805 psi | Overlap Shear Strength | PVC | 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 substrates were approximately: Maple, .375", plastics .125"., The separation rate of the testing jaws was 2" per minute., tested @ 73°F (23°C) |
| 1,540 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 substrates were approximately: Maple, .375", plastics .125"., The separation rate of the testing jaws was 2" per minute., tested @ 73°F (23°C) |
| 540 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 substrates were approximately: Maple, .375", plastics .125"., The separation rate of the testing jaws was 2" per minute., tested @ 180°F (82°C) |
| 310 psi | Overlap Shear Strength | PVC | 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 substrates were approximately: Maple, .375", plastics .125"., The separation rate of the testing jaws was 2" per minute., tested @ 180°F (82°C) |
| Tensile Strength | Cure Time | Cure Temperature | Cure Humidity | Test Method |
|---|---|---|---|---|
| 3,900 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). |
| Peel Strength | Type | Substrate | Test Temperature | Test Method |
|---|---|---|---|---|
| 95 piw | 180° Peel Strength | Polycarbonate | 23°C | 180° peel strengths were measured on 1" x 8" pieces of flexible cotton duck (canvas) bonded to rigid 1" x 4" substrates. The rigid substrates were approximately .125" thick and the separation rate of the testing jaws was 2" per minute. All tests were conducted at 73°F (23°C)., Cotton duck failed during testing |
| 75 piw | 180° Peel Strength | Polyacrylic | 23°C | 180° peel strengths were measured on 1" x 8" pieces of flexible cotton duck (canvas) bonded to rigid 1" x 4" substrates. The rigid substrates were approximately .125" thick and the separation rate of the testing jaws was 2" per minute. All tests were conducted at 73°F (23°C)., Cotton duck failed during testing |
| 83 piw | 180° Peel Strength | ABS | 23°C | 180° peel strengths were measured on 1" x 8" pieces of flexible cotton duck (canvas) bonded to rigid 1" x 4" substrates. The rigid substrates were approximately .125" thick and the separation rate of the testing jaws was 2" per minute. All tests were conducted at 73°F (23°C).,Cotton duck failed during testing |
| 100 piw | 180° Peel Strength | PVC | 23°C | 180° peel strengths were measured on 1" x 8" pieces of flexible cotton duck (canvas) bonded to rigid 1" x 4" substrates. The rigid substrates were approximately .125" thick and the separation rate of the testing jaws was 2" per minute. All tests were conducted at 73°F (23°C)., Cotton duck failed during testing |
| General Bond Strength | Cure Time | Cure Temperature | Cure Humidity | Substrate | Test Time | Test Temperature | Test Method |
|---|---|---|---|---|---|---|---|
| Rapid | |||||||
| 325 psi | 10,080 min | 25°C | 50 % | PVC | 10 min | 23°C | PVC and maple Overlap Shear Strength (psi) tested @ 73°F (23°C) at various times after bonding. The substrates were conditioned for 7 days at 77°F (25°C)/50% RH prior to bonding. |
| 600 psi | 10,080 min | 25°C | 50 % | PVC | 60 min | 23°C | PVC and maple Overlap Shear Strength (psi) tested @ 73°F (23°C) at various times after bonding. The substrates were conditioned for 7 days at 77°F (25°C)/50% RH prior to bonding. |
| 1,900 psi | 10,080 min | 25°C | 50 % | PVC | 1,440 min | 23°C | PVC and maple Overlap Shear Strength (psi) tested @ 73°F (23°C) at various times after bonding. The substrates were conditioned for 7 days at 77°F (25°C)/50% RH prior to bonding. |
| 1,775 psi | 10,080 min | 25°C | 50 % | PVC | 4,320 min | 23°C | PVC and maple Overlap Shear Strength (psi) tested @ 73°F (23°C) at various times after bonding. The substrates were conditioned for 7 days at 77°F (25°C)/50% RH prior to bonding. |
| 1,805 psi | 10,080 min | 25°C | 50 % | PVC | 10,080 min | 23°C | PVC and maple Overlap Shear Strength (psi) tested @ 73°F (23°C) at various times after bonding. The substrates were conditioned for 7 days at 77°F (25°C)/50% RH prior to bonding. |
| 450 psi | 10,080 min | 25°C | 50 % | Maple | 10 min | 23°C | PVC and maple Overlap Shear Strength (psi) tested @ 73°F (23°C) at various times after bonding. The substrates were conditioned for 7 days at 77°F (25°C)/50% RH prior to bonding. |
| 1,295 psi | 10,080 min | 25°C | 50 % | Maple | 60 min | 23°C | PVC and maple Overlap Shear Strength (psi) tested @ 73°F (23°C) at various times after bonding. The substrates were conditioned for 7 days at 77°F (25°C)/50% RH prior to bonding. |
| 1,240 psi | 10,080 min | 25°C | 50 % | Maple | 1,440 min | 23°C | PVC and maple Overlap Shear Strength (psi) tested @ 73°F (23°C) at various times after bonding. The substrates were conditioned for 7 days at 77°F (25°C)/50% RH prior to bonding. |
| 1,155 psi | 10,080 min | 25°C | 50 % | Maple | 4,320 min | 23°C | PVC and maple Overlap Shear Strength (psi) tested @ 73°F (23°C) at various times after bonding. The substrates were conditioned for 7 days at 77°F (25°C)/50% RH prior to bonding. |
| 1,500 psi | 10,080 min | 25°C | 50 % | Maple | 10,080 min | 23°C | PVC and maple Overlap Shear Strength (psi) tested @ 73°F (23°C) at various times after bonding. The substrates were conditioned for 7 days at 77°F (25°C)/50% RH prior to bonding. |
| Elongation | Test Method |
|---|---|
| 725 % | ASTM D638, Die C, measured on .011" - .012" thick films cured for a minimum of 7 days at 77°F (25°C)/50% relative humidity (RH), at Break |
| Shore D Hardness | Shore Hardness Test Method |
|---|---|
| 50 | Measured on .090" - .110" thick bars. |
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