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An 850ml jumbo cartridge gun in steel, for structural sealants that would stall a standard gun. The low gearing trades speed for push: thick material comes out at steady pressure, so the joint fills without voids.
The frame rotates a full circle, which matters in tight structural joints where the nozzle has to stay square to the work while the handle swings.
Low gearing pushes thick structural sealants without stalling.
Steady bead pressure fills joints without voids.
360-degree rotating frame keeps the nozzle square in tight joints.
Load the 850ml cartridge, cut and purge, and bead with slow, even trigger strokes. Low gearing is deliberate: let it push rather than racing the trigger. Clean the drive plate and plunger after use.
Takes 850ml jumbo cartridges only; standard 300ml cartridges will not seat. Slow by design, so not the gun for fast thin beads.