LORD 305-1/2

Harmonization Code : 3506.91.90.99 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg ; Adhesives based on polymers of headings 3901 to 3913 or on rubber; Other ; Other

LORD 305-1/2

Main features

  • Medium-Viscosity Application Control
  • Rubber-to-Wood Epoxy Bonding
  • Chemically, Environmentally and Temperature Resistant

Product Description

LORD® 305-1/305-2 Epoxy Adhesive is a general-purpose, medium-viscosity, two-component epoxy adhesive designed to produce strong, durable, chemically and environmentally resistant structural bonds. It provides excellent adhesion to prepared metals, fiberglass reinforced plastics (FRP), phenolics, wood, prepared rubber and other engineering materials. The adhesive is also suitable for bonding cured rubber to itself and rubber to metal, including gaskets, bushings, shock-absorbing devices and rubber rolls. LORD® 305 can be cured at room temperature or heat cured to accelerate production while delivering reliable performance across a service temperature range of -30°F to +250°F (-34°C to +121°C). :contentReference[oaicite:0]{index=0}

Key Features

  • Medium-viscosity, two-component epoxy adhesive for durable structural bonding.
  • Excellent adhesion to metals, FRP, phenolics, wood, prepared rubber and other engineering substrates.
  • Resists moisture, sunlight, weathering, dilute acids, alkalis, solvents, greases and oils while providing low shrinkage and good creep resistance.

Applications / Suitable For

  • General structural bonding applications
  • Metal and composite assemblies
  • Bonding cured rubber to itself or to metal components
  • Gaskets, bushings, shock-absorbing devices and rubber rolls
Product Family

LORD 305-1/2

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Appearance
Appearance at room temperature.
305-1 Resin: Clear Amber Liq | 305-2 Hardener: Blue Liq
Density
Volumetric mass per unit
Resin: 1126 -1198 | Hardener: 928 -1001 kg/m3
Physical Properties
Viscosity
Viscosity is a measurement of a fluid’s resistance to flow. Viscosity is commonly measured in centiPoise (cP). One cP is defined as the viscosity of water and all other viscosities are derived from this base. MPa is another common unit with a 1:1 conversion to cP. A product like honey would have a much higher viscosity -around 10,000 cPs- compared to water. As a result, honey would flow much slower out of a tipped glass than water would. The viscosity of a material can be decreased with an increase in temperature in order to better suit an application
Resin: 10,000 -18,000 | Hardener: 20,000 - 45,000 mPa.s
Thermal Properties
Flash Point
The flashpoint of a solvent is the lowest possible temperature at which it can vaporize to form an ignitable vapor. Flashpoint is often confused with “autoignition temperature”, which is the temperature at which a solvent ignites without an ignition source.
Resin: >93 | Hardener: >93 °C

Additional Information

As-Supplied / Before-Processing Properties

Property 305-1 Resin 305-2 Hardener Method / Condition
Appearance Clear amber liquid Blue liquid Typical
Viscosity 10,000–18,000 cP 20,000–45,000 cP Brookfield HBF, Spindle 2, 10 rpm, 77°F (25°C)
Density 9.4–10.0 lb/gal (1126–1198 kg/m³) 7.75–8.35 lb/gal (928–1001 kg/m³) Typical
Flash Point >200°F (>93°C) >200°F (>93°C) Closed Cup
General Purpose Mix Ratio 1:1 by volume (1.2:1 by weight) -30°F to +250°F (-34°C to +121°C)
Solids Content 100% Mixed adhesive
Working Time 1–2 hours 75°F (24°C), 54 g mass
Time to Handling Strength 8–16 hours Typical
Mixed Appearance Blue liquid Typical
Shelf Life 2 years Stored unopened at 60–80°F (16–27°C)

After-Processing / Final-State Properties

Property Value Method / Condition
Cure Schedule 24–48 hours 65°F (18°C) or higher
Service Temperature -30°F to +250°F (-34°C to +121°C) Typical operating range
Tensile Strength at Break 3350 psi (23.1 MPa) ASTM D638
Elongation 9.9% ASTM D638
Young's Modulus 283,694 psi (1956 MPa) ASTM D638
Glass Transition Temperature (Tg) 141°F (61°C) ASTM E1640-99 by DMA
Cured Appearance Translucent Blue Typical

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