3M DP420 Off-White Scotch-Weld Epoxy Adhesive , 37 mL, 12 per case

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3M DP420 Off-White  Scotch-Weld Epoxy Adhesive , 37 mL, 12 per case

图片关键词Scotch-Weld™ Epoxy Adhesive DP420 Blck, NS-Blck, OffWhit, LH  (PDF, 71.0KB

图片关键词3M™ Scotch-Weld™ Epoxy Adhesive DP-420, Off-White (US) 

图片关键词3M™ Scotch-Weld™ Epoxy Adhesive, DP-420 Black (US) 

图片关键词3M™ Scotch-Weld™ Epoxy Adhesive DP420LH, Off-White (US) 

图片关键词3M™ Scotch-Weld™ Epoxy Adhesive DP-420 NS, Black or 3M™ Scotch-Weld™ Epoxy Adhesive 420 B/A NS, Black (US) 

3M™ Scotch-Weld™ Epoxy Adhesive 420 is a toughened, two-part epoxy adhesive. 2:1 mix ratio, 20 minute work life and handling strength in approximately 2 hour.
  • Toughened for impact and vibration resistance
  • Moderate work-life provides ample time for positioning and adjustment for fit
  • Adhesive meters and mixes as it dispenses, for maximum work-life
  • Medium viscosity, self-leveling formula provides easy, precise dispensing
  • Effective adhesive for joining, gluing, adhering, attaching, repairing, potting, panel bonding, adhering, and structural bonding 

It maintains bond strength at high and low temperatures and can withstand paint bake operations up to 400 degrees F for 30 minutes.In many applications, you can use DP420 in place of mechanical fasteners, screws, rivets, spot welds, and is excellent for indoor bonding on a variety of substrates such as metals, ceramics, wood, many plastics, and glass. Our adhesive meets the requirements for UL 94 HB.

DP420 dispenses as a medium viscosity adhesive for easy, controlled dispensing. The adhesive reaches handling strength in approximately 2 hours and is fully cured in 24 hours (at 72 degrees F/22 degrees 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. For best results, always use 3M™ Scotch-Weld™ EPX™ Plus II Applicator and Mixing Nozzles, sold separately. Both mixing nozzle and applicator are required for dispensing from the Duo-Pak cartridge.

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 "work life" lasts anywhere from a few minutes to 48 hours or longer. This class of structural adhesives provides high shear and peel strengths, depending on the formula and better heat and chemical resistance than other common adhesives. Epoxies that are heat cured are more heat and chemical resistant than those that cure at room temperature. Epoxy adhesives are widely used in building and home construction, aircraft and automobile manufacture, bicycle, boat, golf clubs, ski, and snowboard assembly and a host of home use and other applications; 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.

Industrial uses for epoxies range widely and include coatings, adhesives, and composite materials like carbon fiber and glass-reinforced plastic. They are the preferred choice for their ability to flow and conform to the work area, strong adhesion, chemical and heat resistance, and exceptional mechanical and electrical insulating properties.

Specifications

Adhesive Type Epoxy
Applications Hard Disk Drive Component Assembly
Brand Scotch-Weld
Color Off-White
Consumer Label No
Container Volume 37 ml
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 Each
Shear Strength at 72 Degrees F (22 Degrees C) 4500 Pound-Force Per Square Inch
Shelf Life in Months (from date of manufacture) 15
Specific Gravity 1.13
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 30,000
Worklife 20 minutes @ 72 F (22 C)
 

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