LORD 403
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

Main features
- LORD Accelerator 17/19/19GB Compatibility
- Alternative to Welding/Brazing/Fastening
- Acrylic Adhesive with Multiple Accelerators
Product Description
LORD® 403 Acrylic Adhesive is an acrylic adhesive designed for use with LORD Accelerator 17, 19 or 19GB. When used as a complete adhesive system, it provides an alternative to welding, brazing, riveting and other mechanical fastening methods. Product-specific selection must account for the chosen accelerator because working time, cure behavior and final performance may vary by system configuration.
Key Features
- Compatible with LORD Accelerator 17, 19 or 19GB as supported system options.
- Alternative to mechanical fastening methods including welding, brazing and riveting.
- Two-component acrylic adhesive system requiring the appropriate accelerator for use.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Thermal Properties
Physical Properties
Additional Information
As-Supplied / Before-Processing Properties
Typical component and mixed-system properties for LORD® 403 Acrylic Adhesive used with LORD® Accelerator 19 Black. Values are typical and are not intended for specification purposes.
| Property | LORD 403 Adhesive | Accelerator 19 Black | Mixed System | Method / Condition |
|---|---|---|---|---|
| Appearance | Off-white to tan paste | Black/gray paste | Gray paste | Typical |
| Viscosity | 100,000–300,000 cP | ≥250,000 mPa·s | — | LORD 403: Brookfield at 77°F (25°C); Accelerator 19 Black: 25°C |
| Density | 9.25–9.55 lb/gal (1108–1144 kg/m³) |
12.55 lb/gal (1.51 g/cm³) |
— | Typical |
| Flash Point | 59°F (15°C) |
≥201°F (≥93°C) |
— | Setaflash closed cup |
| Mix Ratio | 4 parts by volume 3.00 parts by weight |
1 part | 4:1 by volume 3.00:1 by weight |
Adhesive to Accelerator 19 Black |
| Solids Content | — | — | 100% | Mixed adhesive system |
| Working Time | — | — | 2–4 minutes | At 75°F (24°C) |
| Time to Handling Strength | — | — | 4–6 minutes | At 75°F (24°C); 50 psi shear |
| Typical Shelf Life | 9 months | — | — | Below 80°F (27°C) in original, unopened container; storage at 40–50°F (4–10°C) recommended |
After-Processing / Final-State Properties
Typical cured properties for LORD® 403 Acrylic Adhesive mixed with LORD® Accelerator 19. Values are typical and are not intended for specification purposes.
| Property | Value | Unit | Method / Condition |
|---|---|---|---|
| Full Cure Time | 24 | hours | At 75°F (24°C); approximately 90% of full strength after 2 hours |
| Cured Appearance | Black | — | With Accelerator 19 Black |
| Tensile Strength at Break | 2700 (18.6) |
psi (MPa) |
ASTM D638, modified; LORD 403 with Accelerator 19 |
| Elongation | 30 | % | ASTM D638, modified; LORD 403 with Accelerator 19 |
| Young’s Modulus | 130,000 (896.3) |
psi (MPa) |
ASTM D638, modified; LORD 403 with Accelerator 19 |
| Glass Transition Temperature | 162 (72) |
°F (°C) |
ASTM E1640-99, by DMA; LORD 403 with Accelerator 19 |
| Temperature Range | -40 to 300 (-40 to 149) |
°F (°C) |
Documented product-family performance range |





















