• Seal or grout plastic or steel casings in monitor and water well construction
• Seal or plug any earthen borehole
• Seal leaking ponds, ditches and dams
• Soil stabilization
• Prepare BENSEAL/EZ-MUD® grouting systems
• Prepare a dry grout of BENSEAL and sand, one-to-one ratio by volume, admixture

• High swelling capacity to create a tight seal
• Granular, dust free, single-sack product
• No heat of hydration
• Prevents commingling of aquifers and contamination from surface
• Forms a flexible seal to protect casing from corrosive contaminants
• Allows for hole re-entry 

• Appearance – Bluish to gray granules
• Dry screen analysis – 85% of 8 mesh
• Bulk density, lb/ft3 – 73.4 (as packaged)
• Moisture, % – 8 to 10
• Specific gravity – 2.6
• Permeability – less than 1 x 10-8 cm/sec (in fresh water) 

As a casing drill and drive operation:

• Dig a cone-shaped depression around casing. Depression should be 6 – 8 inches (152-203 mm) larger than the outside diameter of the casing and 2 – 3 feet (60-75 cm) deep.
• Keep cone-shaped depression filled with dry BENSEAL while driving the casing.

Note:
When drilling and driving a 4″ (102mm) pipe, expect to use 2.5 pounds of BENSEAL per foot of hole or 3.7 kilograms of BENSEAL per meter of hole.

• Combine BENSEAL and sand in a ratio of one-to-one by volume. Mix well.
• This mixture can be poured from the top into holes not over 100 feet (30.5 meters) deep, and through 50 feet (15.3 meters) or less of standing water in the hole.

BENSEAL/sand is often used to set shallow casing, heat-pumps, etc.

Note: Sand particle size should be approximately equal to BENSEAL.

• Work BENSEAL into the top six inches (152 mm) of soil and compact it, completely covering the area which will be under water.

Normal treatment is between 3 to 5 pounds per square foot (14.5 – 24.5 kg/m2), depending on the type of soil. If the leaking area can be identified and isolated, an attempt can be made to broadcast BENSEAL uniformly into the water over the area in question.

• Begin with the pit full of mud or water.
• Raise pump suction off bottom and place a shovel next to it and slightly under suction.
• Pour dry BENSEAL slowly into the space between shovel and suction.
  Pump it down the hole.
• Note:
  This product has been certified by the National Sanitation Foundation (NSF) to contribute no adverse health problems when used as the manufacturer recommends for the construction of potable water wells. 

BENSEAL is packaged in 50-lb (22.7 kg) multiwall paper bags, containing 0.7 ft3 (0.02 m3).