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The ‘barrier’ cartridge has a
foiled mixer dasher held in place inside the cartridge with a cinch tape on
the outside of the cartridge. The resin and hardener are separated by the
foil. This cartridge is best for ratios of 1:1 to 10:1 parts-by-volume.
The incorporation of an injection rod in this cartridge system allows for a
third component such as a pigment or filler.
The ‘injection’ system consists of
the main cartridge being filled with the resin and an injection rod that
contains the hardener. This cartridge system is best suited for a 10:1 (or
less) parts-by-volume/weight ratio. Its operation consists of a ramrod
being pushed against the rod piston, compressing the material and causing
the rod to rupture, injecting the curative into the resin. The two
materials are then mixed to a homogenous mixture.
Mixing of both systems can be done manually or with an
electric or pneumatic mixer. Dispensing is accomplished through manual or
pneumatic guns or stand-mounted units using a variety of nozzles and
needles.
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