BEP870 Black High Temp 2-Part Epoxy Adhesive Kit 1:1 Ratio

The BEP870 is a high-temp, two-part black structural epoxy adhesive engineered for strong, durable bonds in demanding applications. Furthermore, its toughened formula resists vibration, shock, and fatigue. As a result, it is one of the most trusted adhesives for loudspeaker repair, recone kits, and industrial bonding applications.

This epoxy bonds strongly to metals, composites, ceramics, wood, cloth, and many plastics. Moreover, it is widely used as a voice coil epoxy for speaker assembly and reconing. In addition, it performs exceptionally well for panel bonding, potting, and structural reinforcement. Consequently, it is a go-to choice for both professional reconers and serious DIY builders.

BEP870 is also available in a 50ml cartridge format for use with a dispensing gun — perfect for cleaner, faster, and more precise applications.

Key Features:

• High-temp, toughened structural formula for extreme durability
• Ideal speaker repair adhesive — used for recone kits and voice coil bonding
• Bonds metals, composites, ceramics, wood, cloth, and plastics
• 1:1 mix ratio — easy-to-measure equal parts for reliable results
• Working Time: 8–10 minutes at 77°F
• Handling Strength: ~1–2 hours; full cure in 24 hours at room temperature
• Temperature resistant — maintains bond strength through paint bake cycles up to 400°F for 60 minutes
• Available in 2oz, 4oz, 8oz, 16oz, 32oz, 64oz, and gallon sizes

Which BEP870 Kit Is Right for You?

• Two-Bottle Kit → Economical, mix by hand, no extra tools needed
• Cartridge Kit → Cleaner, faster, and easier if you own a dispensing gun

Recommended Applications:

• Loudspeaker repair and reconing — cones, spiders, voice coils, and panels
• Bonding aluminum, steel, composites, cloth, and wood
• Structural bonding projects requiring durability, shock resistance, and fatigue resistance
• Automotive, marine, and general shop use

How to Use:

1. First, mix equal parts resin and hardener (1:1 by volume or weight)
2. Next, stir thoroughly until the blend is uniform
3. Then, apply to properly prepared surfaces
4. Allow approximately 1–2 hours for handling strength
5. Finally, allow 24 hours at room temperature for full cure — however, heat curing is recommended when faster results are needed

Storage and Shelf Life:

The BEP870 has a shelf life of 5–6 months when stored at 60–80°F. Lower temperatures may temporarily increase viscosity. Higher temperatures, however, can cause permanent changes. Therefore, always store in a cool, dry place and keep containers tightly sealed when not in use.