EPIKOTE LR285 Laminating Epoxy System

EPIKOTE™ MGS® LR285 Laminating Epoxy System

EPIKOTE™ MGS® LR285 is a premium laminating epoxy system widely used in high-performance composite applications. Known for its excellent fibre wet-out and proven reliability, it is a go-to choice for aerospace, marine, and advanced composite manufacturing.

With approval from the German Federal Aviation Authority, LR285 is trusted in demanding environments where consistency, strength, and processing flexibility are critical. It is suitable for use with glass, carbon, and aramid fibres, delivering high-quality laminates across a wide range of applications.


Key Features

  • Exceptional fibre wetting for high-quality laminates
  • Wide range of curing speeds depending on hardener selection
  • High thermal performance (up to ~100°C after post cure)
  • Solvent-free system for consistent mechanical properties
  • Suitable for precision and structural composite applications
  • Long shelf life (up to 24 months sealed)

Performance & Processing

  • Processing temperature range: 15°C – 50°C
  • Operational temperature: -40°C to +100°C after cure
  • Pot life range: approx. 30 minutes to 3.5 hours at 25°C
  • Post-curing required to achieve full mechanical and thermal properties

The data table on page 2 highlights how different curing agents (LH285–LH287) allow you to adjust working time from fast cures (~15 minutes) through to extended working times (~140 minutes), giving flexibility across different manufacturing setups.


Typical Applications

  • Aircraft and glider construction
  • Marine and boat building
  • High-performance sporting goods
  • Tooling and mould production
  • Structural composite components

Why Use LR285

LR285 is a proven, industry-trusted laminating system when you need top-tier performance and reliability. Its combination of excellent wet-out, adjustable cure speeds, and aerospace-level pedigree makes it ideal for precision composite work where quality matters.