3M DP920 Off-White Scotch-Weld Epoxy Adhesive , 37 mL, 12 per case

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3M DP920 Off-White Scotch-Weld Epoxy Adhesive , 37 mL, 12 per case

图片关键词3M™ Scotch-Weld™ Epoxy Adhesive DP920 

图片关键词3M™ Scotch-Weld™ Epoxy Adhesive DP920 (US) 

3M™ Scotch-Weld™ Epoxy Adhesive DP920 is a two-part, room-temperature curing epoxy adhesive, specially formulated to bond oily metals and other surfaces. At 3M, we have pioneered the bonding of surfaces which have been regarded as ‘hard-to-bond’, including oily metal and low surface energy (LSE) plastics.

 

  • Bonds with minimal surface prep
  • Provides high shear, peel, impact, vibration and fatigue resistance
  • Mixes as it dispenses for minimal material waste and maximum work-life
  • Medium viscosity, no-sag formula provides easy, precise dispensing
  • Effective system for joining, gluing, adhering, attaching, repairing, potting, panel bonding, adhering, and hard disc drive component assembly 

The mix ratio is 2:1 and its 20 minute work life gives you ample time to adjust for proper fit prior to curing. It starts as a medium viscosity liquid for easy, controlled application where you need it and won't sag when dispensed overhead. The adhesive reaches handling strength in approximately 3 hours and is fully cured in 48 hours. 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.

Specifications

Adhesive Type Epoxy
Applications Hard Disk Drive Component Assembly
Brand Scotch-Weld
Color Off-White
Consumer Label No
Container Volume 200 ml
Full Cure 48 Hours @ 72 F (22 C)
Industries Transportation, Specialty Vehicle, Metalworking, Construction, Military & Government, General Industrial, Electronics, Consumer Goods
Mix Ratio Volume Base:Accelerator 2 : 1
Peel Strength at 72 Degrees F (22 Degrees C) 30 lb/in
Physical Form Flowable Liquid
Product Form Each
Shear Strength at 72 Degrees F (22 Degrees C) 3700 Pound-Force Per Square Inch
Shelf Life in Months (from date of manufacture) 15
Specific Gravity 1.15
Storage Temperature 72 Degree Fahrenheit
Substrate 1 Plastics (High Performance Nylon), Plastics (ABS, PVC, Acrylic), Metal, Glass & Ceramics, Wood & Hardboard, Rubber (Except EPDM)
Substrate 2 Plastics (High Performance Nylon), Plastics (ABS, PVC, Acrylic), Metal, Glass & Ceramics, Wood & Hardboard, Rubber (Except EPDM)
Time to Handling Strength 4 Hour
Type Epoxy Adhesive
Viscosity Range (cps) at Room Temperature 100,000
Worklife 20-30 minutes @ 72 F (22 C)

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