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3M™ Scotch-Weld™ Epoxy Adhesive 420 Black Part B, 5 Gallon, 1 per case

3M ID  62277885307    UPC#  00021200415319     
3M™ Scotch-Weld™ Epoxy Adhesive 420 Off-White Part B
3M™ Scotch-Weld™ Epoxy Adhesive 420 Off-White Part B
3M™ Scotch-Weld™ Epoxy Adhesive 420 is a toughened, two-part epoxy structural adhesive that provides good strength along with high impact and vibration resistance to meet demanding bonding challenges. 3M™ Scotch-Weld Epoxy Adhesive 420 adhesive can replace mechanical fasteners, screws, rivets and spot welds in many applications.
  • High peel and shear strength maintains enduring bond at both and low temperatures
  • Toughened for impact and fatigue resistance
  • Moderate work-life provides ample time for positioning and adjustment for fit
  • Medium viscosity, self-leveling formula provides easy, precise dispensing
  • Adhesive cures at room temperature, making it a convenient and easy to use solution for tough end applications
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Overview

Our 3M™ Scotch-Weld™ Epoxy Adhesive 420 maintains bond strength at high and low temperatures and can withstand paint bake operations up to 400°F for 30 minutes. It works well on a variety of substrates such as metals, ceramics, wood, many plastics, and glass, and is an excellent indoor bonding agent for joining, gluing, potting, panel bonding, and structural bonding. Our adhesive meets the requirements for UL 94 HB.

3M™ Scotch-Weld™ Epoxy Adhesive 420 dispenses as a medium viscosity adhesive for easy, controlled application. The adhesive reaches handling strength in approximately two hours and is fully cured in 24 hours (at 72°F/22°C.) The mix ratio is 2:1 and provides a 20 minute work life, providing ample time to adjust for desired fit prior to curing. This adhesive is available in a variety of package sizes and can be dispensed in several ways to meet the demands of the user and the job.

What are Epoxy Adhesives?
Epoxy adhesives are part of the class of adhesives called structural adhesives, which also includes polyurethane, acrylic, cyanoacrylate, and others. Epoxies begin as liquid reactive polymers that undergo a chemical chain 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 need. This working time lasts anywhere from a few minutes to 48 hours or longer. Depending on the specific formulation, this class of structural adhesives can provide very high shear and peel strengths, and better heat and chemical resistance than other common adhesives. Epoxy adhesives are widely used in a variety of industrial applications in the automotive, aerospace, appliance, metalworking, sporting goods and electronics industries, among others; virtually anywhere high-strength bonds are needed along with resistance to environmental conditions. These adhesives are popular for their ease of use, mechanical strength, and chemical resistance. Formulations can be created to make epoxies that are flexible or rigid, transparent or opaque, quick setting or slow setting. The versatility with which epoxy adhesives can be formulated helps meet almost any requirement for bonding wood, metal, glass, stone, and various plastics.

Attributes

 Adhesive Type‎‎ Epoxy
 Applications‎‎ Hard Disk Drive Component Assembly
 Brand‎‎ Scotch-Weld
 Color‎‎ Black
 Consumer Label‎‎ No
 Container Volume‎‎ 5 Gallon
 Full Cure‎‎ 24 Hours @ 72 F (22 C)
 Hardness‎‎ 75-80 Shore D
 Industries‎‎ Transportation,‎ Specialty Vehicle,‎ Construction,‎ Military & Government,‎ General Industrial,‎ Electronics,‎ Consumer Goods
 Mix Ratio Volume Base:Accelerator‎‎ 2 : 1
 Peel Strength at 72 Degrees F (22 Degrees C)‎‎ 50 lb/in
 Physical Form‎‎ Flowable Liquid
 Product Form‎‎ Gallon
 Shear Strength at 72 Degrees F (22 Degrees C)‎‎ 4500 Pound-Force Per Square Inch
 Shelf Life in Months (from date of manufacture)‎‎ 24
 Specific Gravity‎‎ 1.14
 Storage Temperature‎‎ 72 Degree Fahrenheit
 Substrate 1‎‎ Metal,‎ Glass & Ceramics
 Substrate 2‎‎ Metal,‎ Glass & Ceramics
 Time to Handling Strength‎‎ 2 Hour
 Type‎‎ Epoxy Adhesive
 Viscosity Range (cps) at Room Temperature‎‎ 8,000-14,000
 Worklife‎‎ 20 minutes @ 72 F (22 C)