MGS LR 635 Epoxy Resin

MGS LR 635 is a premium, DNVGL-approved epoxy laminating resin system engineered for demanding structural composite applications. Trusted throughout the wind energy, marine, transportation, tooling, and industrial manufacturing sectors, LR 635 delivers exceptional laminate quality, reliable processing, and outstanding mechanical performance.

This solvent-free, filler-free resin features excellent wet-out characteristics and is designed for use with fiberglass, carbon fiber, and aramid reinforcements. Its balanced viscosity promotes efficient fiber saturation, making it ideal for hand lay-up, vacuum bagging, resin infusion, filament winding, and structural bonding applications.

One of the key advantages of the LR 635 system is its processing flexibility. When combined with the MGS LH-series hardeners, users can select pot lives ranging from approximately 10 minutes to more than 5 hours, allowing the system to be tailored to everything from small repairs to large-scale infusion projects. Hardeners can also be blended to achieve customized cure profiles and working times.

After proper curing and post-curing, LR 635 delivers excellent thermal stability and long-term durability, with service temperatures ranging from -40°C to +70°C.

Features & Benefits

• DNVGL-approved epoxy laminating system

• Designed for structural composite applications

• Compatible with fiberglass, carbon fiber, and aramid fibers

• Solvent-free and filler-free formulation

• Excellent wet-out and fiber impregnation characteristics

• Suitable for vacuum infusion, hand lay-up, vacuum bagging, and filament winding

• Pot life options from approximately 10 minutes to over 5 hours

• Customizable cure schedules through hardener selection or blending

• Processing temperatures from 15°C to 50°C

• Cold-cure capability down to 5°C when used with LH633 hardener

• Excellent mechanical properties and fatigue resistance

• Service temperatures from -40°C to +70°C after appropriate cure

Typical Applications

• Wind turbine blade manufacturing and repair

• Marine hulls, decks, and structural components

• Composite tooling and molds

• Carbon fiber and fiberglass composite structures

• Sporting goods and performance equipment

• Industrial and transportation composites

• Structural bonding and reinforcement

MGS LR 635 has become an industry-standard epoxy system for manufacturers seeking superior processing flexibility, dependable performance, and high-strength composite laminates in both production and repair environments.