LORD 304-1

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 304-1

Main features

  • High-Viscosity Placement Control
  • Rubber, Wood, and FRP Bonding
  • Durable Cured Performance with Environmental

Product Description

LORD® 304-1/304-2 Epoxy Adhesive is a high-viscosity, two-component epoxy adhesive system designed for structural bonding applications requiring gap filling and non-sag performance on vertical or overhead surfaces. The adhesive develops durable, load-bearing bonds to prepared metals, fiberglass reinforced plastics (FRP), phenolics, wood, prepared rubber and other engineering substrates. It can be cured at room temperature or with heat to accelerate processing while providing excellent environmental, chemical and temperature resistance across a service range of -30°F to +250°F (-34°C to +121°C). :contentReference[oaicite:0]{index=0}

Key Features

  • High-viscosity, non-sag formulation suitable for vertical and overhead bonding applications.
  • Excellent adhesion to prepared metals, FRP, phenolics, wood, prepared rubber and other engineering materials.
  • Room-temperature or heat-curing system providing durable mechanical performance with low shrinkage, low water absorption and good creep resistance.

Applications / Suitable For

  • Structural bonding requiring gap-filling capability
  • Vertical and overhead assembly applications
  • Metal fabrication and engineered composite assemblies
  • Wood, fiberglass reinforced plastic (FRP) and prepared rubber bonding
Product Family

LORD 304-1

Loading pricing…
TDS, SDS & Technical Documents

Technical Specifications

General Properties
Appearance
Appearance at room temperature.
304-1 Resin: Grey Paste | 304-2 Hardener: Off White Paste
Density
Volumetric mass per unit
Resin: 1378 - 1474 | Hardener: 1007 -1078 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: 40000 - 400000 | Hardener: 20,000 -100,000 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: 85 | Hardener: >93 °C

Additional Information

As-Supplied / Before-Processing Properties

Property 304-1 Resin 304-2 Hardener Method / Condition
Appearance Gray paste Off-white paste Typical
Viscosity 40,000–400,000 P 20,000–100,000 P Brookfield HBF, Helipath, 1 rpm (T-Bar E / T-Bar C)
Density 11.5–12.3 lb/gal (1378–1474 kg/m³) 8.4–9.0 lb/gal (1007–1078 kg/m³) Typical
Flash Point 185°F (85°C) >200°F (>93°C) Closed Cup
Recommended Mix Ratio (General Purpose) 1:1 by weight (1:1.3 by volume) -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 Gray paste 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 4360 psi (30.1 MPa) ASTM D882-83A (modified)
Elongation 10% ASTM D882-83A (modified)
Young's Modulus 146,000 psi (1007 MPa) ASTM D882-83A (modified)
Glass Transition Temperature (Tg) 133°F (56°C) ASTM E1640-99 by DMA

Leading Brands Trust in Our Products and Services

Products that Perform| Knowledge that Serves| Service that Delivers