LORD 661/6
Harmonization Code : 38159000 | Unspecified reaction initiators, accelerators, and catalytic preparations
Main features
- Up to 25.4 mm Gap Fill
- 11-19 Minute Working Window at 32 deg C
- 45-55 Minute Handling Strength
Product Description
LORD 661/Accelerator 6 is a two-part acrylic adhesive system for DCPD and modified-DCPD FRP and for cross-bonding those composites to metals. LORD 661 is a white to off-white paste with blue tint and typical viscosity of 125,000-350,000 cP. The system mixes 10:1 by volume or 7.4:1 by weight. At 32 deg C, LORD 661 has an 11-19 minute working time; handling strength is reached in 45-55 minutes, with 24-hour room-temperature cure. The mixed adhesive is non-sag and fills gaps up to 25.4 mm. This page refers specifically to Accelerator 6, not the separate 6GB variant.
Key features
- Gap-Filling Capacity: The mixed system fills gaps up to 25.4 mm.
- Mixed-System Work Time: LORD 661 mixed with Accelerator 6 has a typical working time of 11 to 19 minutes at 32 deg C.
- Assembly Handling: The LORD 661 system reaches the stated handling-strength endpoint in 45 to 55 minutes.
Applications
DCPD and modified-DCPD FRP bonding and cross-bonding composites to metals.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Thermal Properties
Additional Information
As-supplied / before-processing properties
LORD 661 values and mixed-system values apply specifically to the LORD 661/Accelerator 6 system, not Accelerator 6GB.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| LORD 661 viscosity | 125,000-350,000 | cP | Typical |
| LORD 661 density | 1,055-1,174 | kg/m3 | Typical |
| Flash point | 15 | deg C | Typical; LORD 661 component |
| Mix ratio | 10:1 | by volume | LORD 661 adhesive to Accelerator 6 |
| Mix ratio | 7.4:1 | by weight | LORD 661 adhesive to Accelerator 6 |
| Solids content | 100 | % | Typical; mixed system |
| Working time | 11-19 | minutes | Typical; 1 in diameter bead at 32 deg C |
| Time to handling strength | 45-55 | minutes | Typical; 100 psi lap-shear endpoint, 30 mil x 1 in x 1 in |
