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LOCTITE STYCAST EO 8019 – Epoxy Glass Adhesive – Resilient, non-sag heat cure adhesive for potting and encapsulating applications

  • Item Name: LOCTITE STYCAST EO 8019
  • Manufacturer: Henkel Corporation
  • Product category: Epoxy adhesive for potting and encapsulation
  • Technologies: One-component epoxy technology
  • Applications: Ideal for potting and encapsulating applications requiring non-sag performance even at elevated temperatures.
  • Color: Black
  • Cure type: Heat cure
  • Package size: Contact to Techniq VN for details
  • Shelf life: 6 months

1. Product Overview

LOCTITE STYCAST EO 8019 is a black, heat-cure epoxy adhesive designed for potting and encapsulation. It is resilient, non-sagging, and maintains its non-sag properties up to 149°C.

2. Applications

  • Potting and encapsulating
  • Glass adhesive applications requiring heat curing

3. Typical Properties

Uncured Properties
Property Value
Viscosity @ 25°C 325,000 mPa∙s (cP)
Specific Gravity 1.14
Density 9.5 lbs/gal
Non-Sag (1/8″ Bead @ 149°C) Maintained
Shelf Life @ -16°C 182 days
Curing Performance
Condition Gel Time (20g mass)
@ 121°C 40 minutes
@ 149°C 20 minutes

Recommended Cure Schedule

  • 2 hours @ 121°C
  • Alternative: 1 hour @ 149°C
Cured Properties
Property Value
Hardness (Shore D) 82.5
Glass Transition Temperature (Tg) 35°C
Coefficient of Thermal Expansion
– Below Tg 7.6 × 10⁻⁵ in/in/°C
– Above Tg 26.3 × 10⁻⁵ in/in/°C

4. Storage & Handling

  • Store at -16°C in a dry, unopened container.
  • Allow 24-48 hours to reach room temperature before use if refrigerated or frozen.
  • Mix at low speed to minimize air entrapment. If bubbles persist, apply vacuum before curing.

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