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3M™ Scotch-Weld™ Epoxy Adhesive 420NS Black Part B, 43 Gallon, 1 per case

3M ID  62329995302    UPC#  00048011581323    Part Number  420NS    3M Product Number  420     
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 420NS is a toughened, non-sag two-part epoxy. 2:1 mix ratio, 20 minute work life and handling strength in 2 hour. This product is the Base (B) part for a B/A system.
  • 20 minute work life
  • Non-sag
  • High peel and shear strength
  • General industrial, sporting goods, solar energy, wind energy, composites, electronics, military, transportation and aerospace
  • Joining, gluing, attaching, reparing, potting, panel bonding, adhering, and structural bonding.
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3M™ Scotch-Weld™ Epoxy Adhesive 420NS exhibits good shear and peel strengths along with good impact and durability. It bonds extremely well to many surfaces, such as metals, ceramics, wood and some plastics.


Adhesive TypeEpoxy
ApplicationsHard Disk Drive Component Assembly
Consumer LabelNo
Container Volume43 Gallon
Full Cure24 Hours @ 72 F (22 C)
Hardness75-80 Shore D
IndustriesTransportation, Specialty Vehicle, Construction, Military & Government, General Industrial, Electronics, Consumer Goods
Mix Ratio Volume Base:Accelerator2 : 1
Peel Strength at 72 Degrees F (22 Degrees C)50 lb/in
Physical FormPaste
Product FormGallon
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 Gravity1.15
Storage Temperature72 Degree Fahrenheit
Substrate 1Metal, Glass & Ceramics, Rubber (Except EPDM)
Substrate 2Metal, Glass & Ceramics, Rubber (Except EPDM)
Time to Handling Strength2 Hour
TypeEpoxy Adhesive
Viscosity Range (cps) at Room Temperature190,000-270,000
Worklife20 grams: 15 minutes @ 72 F (22 C), 10 grams: 20 minutes @ 72 F (22 C), 5 grams: 30 minutes @ 72 F (22 C)