• Provide a clay-free boring fluid
• Inhibit sticky clay from swelling
• Stabilize the borehole while drilling or excavating
• Provide high cohesiveness to bind excavated sandy soil and gravel
• Facilitate the removal of drilled spoils from augers and increase excavation rate
• Maximize load transfer for drilled shaft application
• ANSI/NSF Standard 60 certified

• Disperses easily with minimal shear
• Develops a viscous slurry with small amount
• Does not require solids control unit to clean the slurry
• Promotes stable and gage borehole
• Alleviates bit balling and mud rings
• Requires less mixing equipment, reducing capital investment
• Results in maximum skin friction and ultimate end bearing capacity for a drilled shaft
• Breaks down chemically with bleach (sodium hypochlorite)
• Non-fermenting

• Appearance - White granular
• Bulk density, lb/ft³ - 52
• pH (0.25% solution) - 8.5 to 9.0

Reverse Circulation Drilling
Add 0.5 to 1 pound (0.2 to 0.5 kilograms) POLY-BORE dry polymer slowly through the hopper to mix with 100 gallons (0.38 m³) of fresh water. (See general instructions listed below.)

General Instructions
Continue mixing for another 15 to 20 minutes to allow POLY-BORE to hydrate.

• If POLY-BORE is being added directly to a tank with paddle mixers, make sure the freshwater level is well above the paddles. Add the POLY-BORE slowly to the vortex of the spinning paddles.
• Measure the funnel viscosity of the polymer slurry and adjust according to required specifications.

• Make-up water used to mix POLY-BORE should meet the following quality:
  • total chloride less than 1500 ppm (mg/L)
  • total hardness less than 150 ppm as calcium
  • total chlorine less than 100 ppm
  • water pH between 8.5-9.5
• Reduce total hardness of make-up water by adding 1 to 2 pounds (0.45 to 0.9 kilograms) soda ash (sodium carbonate) per 1,000 gallons (3.8 m³) of make-up water. (Do not add in excess as overtreatment can lead to detrimental effects and reduced performance of the drilling fluid).
• POLY-BORE can be chemically broken down with regular household liquid bleach (5% sodium hypochlorite). Use one gallon of liquid bleach per 100 gallons (10 liters/m³) of fluid formulated with POLY-BORE. Do not use perfumed liquid bleach or solid calcium hypochlorite.