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3M™ Scotch-Weld™ Epoxy Adhesive 2158

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  • Formulated to create rigid bonds for reliable adhesion
  • High viscosity delivers controlled flow and accurate application without unwanted slumping
  • Extended work-life provides time for adjustment and positioning to achieve desired results
  • Offers strong bonds through high shear strength
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Specifications
Adhesive Type
Epoxy
Applications
Encapsulating, Panel to Frame/Stiffner to Panel Assembly, Potting, Sealing, Sealing, Potting and Encapsulating, Small Joint Assembly
Brand
Scotch-Weld™
Colour
Grey, White
Flame Retardant
UL94 HB
Full Cure
7 Days @ 72 F (22 C)
Hardness
85 Shore D
Indoor/Outdoor
Both
Industries
Construction, Consumer Goods, Electronics, General Industrial, Metalworking, Military and Government, Signage, Specialty Vehicle, Transportation, Woodworking
Mix Ratio Volume Base:Accelerator
1 : 1
Open Time
2 hours @ 72 F (22 C)
Physical Form
Paste
Position
Best
Product Form
Gallon, Kit
Product Type
Epoxy Adhesive
Shear Strength at 72 Degrees F (22 Degrees C)
2000 Pound-Force Per Square Inch
Shelf Life in Months (from date of manufacture)
24
Specific Gravity
1.53, 1.55
Storage Temperature
72 Degree Fahrenheit, 72 F (22 C)
Substrate
Glass, Glass & Ceramics, Metal, Metal (Unpainted), Plastics: HSE, MSE (ABS, Acrylic, Polycaronate, Nylon), Wood
Substrate 1
Glass, Glass & Ceramics, Metal, Metal (Unpainted), Plastics: HSE, MSE (ABS, Acrylic, Polycaronate, Nylon), Wood
Substrate 2
Glass, Glass & Ceramics, Metal, Metal (Unpainted), Plastics: HSE, MSE (ABS, Acrylic, Polycaronate, Nylon), Wood
Units per Case
1, 6
Viscosity
Non-Sag
Viscosity Range (cps) at Room Temperature
Base: 250,000 - 450,000, Accelerator: 200,000 - 800,000
Volume
1 Liquid Quart(US), 5 Gallon (US)
Volume (metric)
19 Litre, 950 Millilitre
Work Time
120 Minutes
Details
  • Formulated to create rigid bonds for reliable adhesion
  • High viscosity delivers controlled flow and accurate application without unwanted slumping
  • Extended work-life provides time for adjustment and positioning to achieve desired results
  • Offers strong bonds through high shear strength
  • Good adhesion to damp concrete

3M™ Scotch-Weld™ Epoxy Adhesive 2158 is a multi-purpose, two-part epoxy adhesive that offers rigid bonds and high shear strength. This epoxy adhesive provides a durable bond that can be applied to a wide variety of metals, wood, concrete, and some plastics.

3M™ Scotch-Weld™ Epoxy Adhesive 2158 is a rigid, multi-purpose, two-part, high-strength adhesive that chemically cures at room temperature. This equal mix ratio (1:1) epoxy has a 2 hour work life, allowing time for adjustments and positioning of substrates and parts. It reaches handling strength in approximately 10 hours and fully cures in 7 days. With a relatively high viscosity this epoxy dispenses easily to ensure a controlled, precise, and accurate application that won't migrate. This product can be used in a wide range of industries including: general industrial, metalworking, construction, military, transportation and, aerospace. Epoxy adhesives are part of the class of adhesives called "structural adhesives," which also includes polyurethane, acrylic, cyanoacrylate, and others. Epoxies are formulated as liquid reactive polymers that undergo a chemical reaction when mixed and then cure to form a solid plastic material. Once the two parts are mixed in their specified ratio, they begin the curing process and offer a limited working time where the adhesive can be applied and the two surfaces positioned as needed. This work life lasts anywhere from a few minutes to several hours. These structural adhesives provide high shear and peel strengths, depending on the formula, and better heat and chemical resistance than other common adhesives. In general, epoxy adhesives have the highest overall strength and offer the best performance and most resistance to high temperatures, solvents, and outdoor weathering.

Suggested Applications

  • Ideal alternative for riveting or welding, bolt setting, frame building, rivet free assembly
  • Designed for general industrial, sporting goods, solar energy, wind energy, composites, electronics, military, transportation and aerospace applications
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