Lord 850 Structural Acrylic Adhesive, 5 Gallon Metal Pail

Description

This structural adhesive is Lord 850, a two-component toughened acrylic system cured with Lord Accelerator 25GB. Supplied here in a 5 gallon metal pail, the system replaces welding, brazing, riveting, and other mechanical fastening on unprepared metals and composite panels.

Where This Structural Adhesive Is Used

Lord 850 bonds a wide range of metals with minimal surface preparation, along with polymer composites such as FRP. Fabricators use it in place of spot welds or rivets on panel assemblies, brackets, and enclosures where drilling or heat would weaken the substrate or leave a visible fastener mark on a finished surface. The 10:1 mix ratio, adhesive to Accelerator 25GB by volume, gives a working time of 6 to 10 minutes at 75 degrees F, with handling strength reached in 18 to 24 minutes and full cure in 2 hours. That handling window lets a line move a bonded assembly to the next station without a long clamp cycle tying up fixtures, and it shortens the gap between bonding and downstream operations such as painting or packaging compared to slower curing epoxy systems.

How This Structural Adhesive Holds Up

Cured Lord 850 delivers 100 percent elongation, which improves impact strength and fatigue resistance compared to rigid, brittle adhesives. The system performs across a service range of negative 40 degrees F to 300 degrees F and tolerates e-coat bake cycles, and tolerates e-coat bake exposure; the cited technical data reports cohesive failure at 338 degrees F (170 degrees C). Application-specific bake schedules should be confirmed against the current technical data sheet. The cured joint resists dilute acids, alkalis, solvents, greases, oils, moisture, and salt spray, and holds up to indirect UV exposure and general outdoor weathering. That combination makes the adhesive a common choice for transportation, enclosure, and appliance assemblies that see vibration, temperature swings, or washdown chemicals over years of service, and it is frequently specified anywhere a welded or riveted joint would otherwise concentrate stress at a single point rather than spreading load across the full bond area.

This pail size suits a production line running continuous bonding through a shift rather than bench-top or prototype work, where a cartridge would run out mid-batch and force a changeover in the middle of an assembly cycle. Meter dispensing equipment or hand-mixing batches should track pot life closely, since exceeding the working time window leaves material that will not spread evenly across the bond area. Related acrylics, epoxies, and other bonding chemistries are grouped in the structural adhesives category. For background on the manufacturer’s full acrylic adhesive line, see Parker LORD.

Need Help?

Need help sizing a mix ratio or checking substrate compatibility? Call (800) 220-1966 or email [email protected].