Big Dog Adhesives BD5420 Epoxy Adhesive

BD5420 is a two-part, epoxy hybrid room temperature cure adhesive designed for bonding of metals, ceramics, and most plastics. It cures to a tough semi-rigid material, and is free flowing in viscosity. It gives good resistance to water, salt spray, inorganic acids and bases, and most organic solvents. It is especially formulated for a 2:1 mix ratio for use in side by side cartridges, or to be used by hand mixing, or use with meter mix equipment. A handling cure is normally achieved at room temperature within 120 minutes with a full cure at room temperature within 24 hours. To accelerate the final cure, or to quicken the handling simply elevate the temperature.

Product Type: 2K (2 component) Adhesive

Compatible Substrates & Surfaces: Ceramic, Metal, Plastics

Cure Method: Air Dry

Chemical Family: Epoxy & Epoxy Derivatives

Similar Products

  • TypeDocument Name
View All Documents

Knowde Enhanced TDS

Identification & Functionality

Features & Benefits

Applications & Uses

Compatible Substrates & Surfaces
Cure Method

Properties

Component A
ValueUnitsTest Method / Conditions
Viscosity40000cps
Component B
ValueUnitsTest Method / Conditions
Viscosity30000cps
Cured Properties
ValueUnitsTest Method / Conditions
Working Time (at 75°F/ 24°C)20 - 30minutes
Fixture Time (at 75°F/ 24°C)2hours
Full Cure (at Room Temperature, For Full Properties)24 - 48hours
Operating Temperature-60 to 302 (-76 to 150)°F (°C)
Density (at Room Temperature, Mixed)9.5 (1.15)lbs/gal (g/cc)
Flash Point (at Room Temperature)min. 392 (min. 200)°F (°C)
Mix Ratio (Part A:Part B)2:1
Hardness (at Room Temperature)75 - 80Shore D
Lap Shear Strength (at Room Temperature, AL to AL)min. 4,600 psi
Tensile Strength (at Room Temperature)9000psi
Elongation (at Room Temperature)3%
Impact Resistance (at Room Temperature)min. 150inch/lb
Dielectric Constant (at 25°C, 100Hz)4.5
Dielectric Strength (at Room Temperature)440v/mil
Volume Resistivity (at Room Temperature)8 x 10¹⁴ohm-cm
Water Absorption (for 24 hours)max. 1%
Volatile Organic Compounds (at Room Temperature)0% by weight

Regulatory & Compliance

Certifications & Compliance
Chemical Inventories

Storage & Handling

Shelf Life
12 Months
Storage & Handling
  • Bring both components to room temperature prior to mixing. Mix 2 parts A to 1 part B by volume or 225 grams part A to 100 grams part B by weight thoroughly for 30 to 60 seconds.
  • Dispense mixed material over properly positioned devices to be glued together.
  • Parts may be shipped within 24 hours but parts can be moved in 2 hours.