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Description for 3M 1357
• Neoprene High Performance Contact Adhesive • Long bonding range • Excellent initial strength • High heat resistance.Application Type Bond 1 Part or 2 Part 1-Part Material Form Liquid Substrate Foamed Glass, Metal, Paper, Plastic, Most rubber, Wood, Foamed Glass, Paper Honeycomb, Plastic laminates, Birch, Decorative plastic laminates Industry Aerospace Interior Manufacturer 3M Chemistry Acetone, MEK, n-Hexane, Petroleum distillate, Polychloroprene, Toluene Cure Method Solvent Application Temperature (°F) 64 Cure Temperature (°C) 21 Cure Time (min) Long, 10, 30 Viscosity (cPs) 200 to 450 Color Gray, Green, Light Yellow High Temperature Resistance (°C) 107, 82, High Low Temperature Resistance (°C) -34 Key Specifications Mil-Spec (United States Military Standard): MIL-A-21366A; MMM-A-121 -
Technical Data for 3M 1357
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
- Aerospace Interior
- Industrial - Veneers
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Chemistry
- Other - Acetone, MEK, n-Hexane, Petroleum distillate, Polychloroprene, Toluene
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Application Method
- Dispenser - Lamination equipment
- Roll
- Brush
- Contact
- Spray
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Cure Method
- Solvent
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Color
- Gray
- Green
- Yellow - Light Yellow
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Key Specifications
- Mil-Spec (United States Military Standard) : MMM-A-121 - MIL-A-21366A; MMM-A-121
- Mil-Spec (United States Military Standard) : A-21366A - MIL-A-21366A; MMM-A-121
Specifications
Cure Specs
Application Temperature (°F) 64 Cure Temperature (°C) 21 Cure Time (min) Long, 10, 30 Viscosity (cPs) 200 to 450 Test Method Bond Strength
General Bond Strength (psi) Excellent initial strength. Peel Strength (piw) 16 (lbs./in.), 31 (lbs./in.), 42 (lbs./in.), 26 (lbs./in.), 24 (lbs./in.), 23 (lbs./in.), 13 (lbs./in.), 18.5 (lbs./in.), 12 (lbs./in.) Test Method Shear Strength (psi) 452, 536, 964, 199, 158 Test Method Material Resistance
High Temperature Resistance (°C) 107, 82, High Low Temperature Resistance (°C) -34 Other Properties
Flash Point (°F) -14.8 Test Method % Solids (%) 23 to 27 Test Method Business Information
Shelf Life Details Storage: Store product at 60-80°F (16-27°C) for maximum storage life. Higher temperatures can reduce normal storage life. Lower temperatures can cause increased viscosity of a temporary nature. Rotate stock on a “first in-first out” basis.;Shelf Life: When stored at the recommended conditions in the original, unopened container, 3M™ Scotch-Weld™ Neoprene High Performance Contact Adhesive 1357 and 1357-L have a shelf life of 15 months. Shelf Life Temperature (°F) 61 to 81 Shelf Life (mon) 15 -
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Best Practices for 3M 1357
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Surface Preparation
Remove all dust, dirt, oil, grease, wax, loose paint, etc.Wiping with solvent such as Methyl Ethyl Ketone (MEK) will aid in preparing the surface for bonding.*
*When using solvents, extinguish all ignition sources, including pilot lights, and follow the manufacturer’s precautions and directions for use.
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Application
When bonding wood veneers, success is dependent on many variables such as environmental conditions, bonding process, type of base material, type of veneer, adhesive type and top coat finishing systems to name a few. It is the user’s responsibility to thoroughly test any adhesive for its suitability in bonding wood veneers. It is also recommended to follow the veneer manufacturers recommendation and industry guidelines.
For best results the temperature of the adhesive and surfaces to be bonded should be at least 65°F (18°C). If stored below 30°F (-1°C), warm-up to room temperature in a warm room only (do not exceed 120°F (49°C) followed by thorough agitation).
Stir or agitate well before using for optimum results. Apply 2.5 gms to 3.5 gms/ft.2 dry weight to each surface. Unusually porous surfaces will require more adhesive.
Assembly: Spacers, such as dowels or strips of laminate, may be used to help prevent premature adhesive/adhesive contact and bonding prior to positioning. Slide out of the spacers and apply uniform pressure, working toward the edges. A 3 in. roller used with maximum body pressure should be used to help ensure adequate contact and bonding, especially on edges. The use of a pinch roll is preferred for optimum performance. Bonded assemblies may be machined, trimmed, etc. immediately after bonding.
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Curing
The adhesive dries in about 10 minutes. High humidity will slow drying-high temperatures speed the drying. This adhesive has a bonding range of approximately 30 minutes when applied to both bond surfaces under conditions of 70°F (21°C) and 35% R.H. If the adhesive becomes too dry, apply another thin coat of adhesive to one surface, allow to become slightly tacky, and bond.
Relative humidity above 50% can cause blushing (condensation of moisture on surface) and a false bond. To avoid this, we recommend a force drying temperature of 180-220°F (82-104°C). Force drying will also help remove the solvent more rapidly.
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Clean-Up
Adhesive residue of 3M™ Scotch-Weld™ Neoprene High Performance Contact Adhesive 1357 and 1357-L may be removed from exposed surfaces with solvents such as Methyl Ethyl Ketone (MEK), or 3M™ Citrus Base Industrial Cleaner.* For flushing fluid lines use MEK.
*When using solvents, extinguish all ignition sources, including pilot lights, and follow the manufacturer’s precautions and directions for use.
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Viscosity Test Methods
Viscosity | Test Method | Temperature |
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200 to 450 cPs | RVF #2 Sp. @20 rpm@80°F 27°C | 27°C |
Peel Strength Test Methods
Peel Strength | Type | Cure Time | Cure Temperature | Substrate | Test Temperature | Test Method |
---|---|---|---|---|---|---|
16 (lbs./in.) | 180° Peel Strength | 1,440 min | 24°C | Canvas-Steel | 24°C | width |
31 (lbs./in.) | 180° Peel Strength | 4,320 min | 24°C | Canvas-Steel | 24°C | width |
42 (lbs./in.) | 180° Peel Strength | 7,200 min | 24°C | Canvas-Steel | 24°C | width |
26 (lbs./in.) | 180° Peel Strength | 10,080 min | 24°C | Canvas-Steel | 24°C | width |
24 (lbs./in.) | 180° Peel Strength | 20,160 min | 24°C | Canvas-Steel | 24°C | width |
23 (lbs./in.) | 180° Peel Strength | 30,240 min | 24°C | Canvas-Steel | 24°C | width |
13 (lbs./in.) | 180° Peel Strength | >30,240 min | 24°C | Canvas-Steel | -34°C | width |
18.5 (lbs./in.) | 180° Peel Strength | >30,240 min | 24°C | Canvas-Steel | 66°C | width |
12 (lbs./in.) | 180° Peel Strength | >30,240 min | 24°C | Canvas-Steel | 82°C | width |
Shear Strength Test Methods
Shear Strength | Type | Cure Time | Cure Temperature | Substrate | Test Temperature | Test Method |
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452 psi | Overlap shear strength | >20,160 min | 24°C | 1/8" Birch/Birch | 24°C | 1/8" Birch/Birch |
536 psi | Overlap shear strength | >30,240 min | 24°C | 1/8" Birch/Birch | 24°C | 1/8" Birch/Birch |
964 psi | Overlap shear strength | >30,240 min | 24°C | 1/8" Birch/Birch | -34°C | 1/8" Birch/Birch |
199 psi | Overlap shear strength | >30,240 min | 24°C | 1/8" Birch/Birch | 82°C | 1/8" Birch/Birch |
158 psi | Overlap shear strength | >30,240 min | 24°C | 1/8" Birch/Birch | 107°C | 1/8" Birch/Birch |
Flash Point Test Methods
Flash Point | Test Method |
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-26.0°C | T.C.C. |
% Solids Test Methods
% Solids | Test Method |
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23 to 27 % | By Weight |