DowSil Silicone Pumps

At HG Adhesive Dispensing we strive to make and continuously improve a product that is practical, easy to use, and affordable for your glazing shop. The simplicity of our Meter Mix Dispense machines for structural 2-part silicones means fast and easy training, a fixed, never out of ratio system, and costs thousands less than a Graco HGR or Graco ExactaBlend to buy, maintain, and operate. Our DowSil Pumps are exceptional quality for less than our competitors.

The Big Bear 437 and Little Bear are highly recommended Meter Mix Dispense pumps by DowSil. These two machines will put your mind at ease for all your construction and curtainwall projects. Our metering and dispense systems have a very high up time. We carry a complete line of spare parts, static mixers, nozzles, and ship orders the same day. We also offer free technical support via email or phone, and will come to your site for routine maintenance if desired.

Dowsil Pump


BIG BEAR (Model 437)

  • Catalyst and Base Ratio Sleeves Are Tied Together to Ensure a Fixed Ratio That Is Always Green to Go!
  • Completely Pneumatic 55-Gallon and 5-Gallon Pumps for the Base and Catalyst
  • 180 Degree Swivel Boom on Top for A Clutter-Free Applicating Radius
  • Your Choice for Length of Applicator Hoses (Standard Is 15 Feet)
  • Heavy Duty Steel Mobility Cart (33”w x 66”l)
  • Quality Service Since 1978 and Includes 403Z Dispensing Gun, 100 Spare Static Mixers, And Spare O-Ring Kits for 403Z


LITTLE BEAR

  • Little Bear Is Small and Compact on a Mobile Cart (29”w x 48”l)
  • Catalyst and Base Ratio Sleeves Are Tied Together to Ensure a Fixed Ratio That Is Always Green to Go!
  • Completely Pneumatic 55-Gallon and 5-Gallon Pumps for the Base and Catalyst
  • Your Choice for Length of Applicator Hoses (Standard Is 15 Feet)
  • Includes 403Z Dispensing Gun, 100 Spare Static Mixers, And Spare O-Ring Kits for 403Z

Dowsil Pump

Specialized/Modified Pumps

We will build whatever helps you the most. The “Big Bear With Long Boom” is one example:

Like the Big Bear 437, the “Big Bear With Long Boom” has completely pneumatic 55-gallon and 5-gallon pumps for the base and catalyst, with choice of length of hoses etc. But is equipped with a heavier cart and boom 20 feet long.


Dowsil Pump


The HG Adhesive Dispensing machines for 2-part silicones are comprised of two pumps: one for the base and one for the catalyst. Through a chop-and-check pump, the silicone is moved into the ratio sleeves. Our machines’ ratio sleeves are tied together to ensure the ratio stays perfect without the operator having to change anything and regardless of the length of your dispensing hoses. The silicone then moves through a series of hoses to a static mixer and nozzle, connected to our patented 403Z dispensing applicator, completely mixed and ready for curing!

See videos here.

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Call Us 1-775-246-3031