RibbonFlo 85  CASE HISTORY: 3000 Gallon Garden Fish Pond Summer 2000 - Broken Arrow, Oklahoma	Elastomer Specialties, Inc. Polymers Division Installation Bulletin

 BACKGROUND:

• Customer desired a smooth liner installation for a straight walled pond with a ledge and backwall.
• Standard pond liner did not meet aesthetic requirements.

 MATERIAL:

• RibbonFlo 85 - 2 part Polyurea
• Low pressure spray application
  approx. 65psi
• 8 second set time
• Approx. 80 mils thick
• Geotextile Fabric

 INSTALLATION:

• Low pressure spray at 1 gpm using the Condor Duplex Pump System

Excavation took advantage of the ability to contour the pond liner. The waterfall end of the pond was stepped to aid in its construction. Plumbing was buried prior to installing the geotextile fabric. Mortar and 4" cap blocks were used to level the stepped sides and provide a solid base for the first layer of stones. 1/4" masonite hardboard was utilized to form the backwall around the pond providing positive water containment and soil retention.	Geotextile fabric was installed,creasing as necessary to conform to the curvature of the pond and spiked into the walls of the soil to provide support during the rapid 8 second set time of the Polyurea. Fabric was "draped" over the backwall form, lapping onto the cap block approx. 3" with small slits to accomodate curvature. Where the geotextile fabric lapped over the top from the side walls, cuts were also made to accomodate the curvature of the pond.
The first step in application of the polyurea liner was to "stitch" the edges and creases of the geotextile fabric. The Condor pump was used to "caulk" beneath the edges of the 3" lap from the backwall form, pressing the fabric into the polyurea. All edges and creases were coated, paying particular attention to folds on the sidewalls to ensure they were sealed to prevent water leakage.	The Condor Low Pressure Spray (LPS) Wand was then installed for the final coating of polyurea. The stepped ledge was given a heavy coat to withstand the abrasion of the planned large stones surrounding the pond. During application it is important to pay particular attention to material flow to ensure no "bug" holes are formed as a result of the rapid set nature of the material.
Low pressure spray application was continued, applying two moderate coats to the vertical walls to prevent sagging of the geotextile fabric. The 8 second set time of the RibbonFlo Polyurea was crucial to the success of the application.	The air supply to the LPS Wand was turned down to apply a "splatter" top coat of polyurea to the finished surface. This "splatter" or textured top coat disguised any sags and runs in the polyurea as well as the overlapping creases in the geotextile fabric.

 OBSERVATIONS ONE YEAR FROM INSTALLATION:

• No water loss beyond expected evaporation
• Outstanding durability to abrasion
  • installation and adjustment of rock and large stones
• Not toxic to aquatic life
  • fish, tadpoles, frogs, snails, insects
• Not toxic to plant life
  • potted water plants
  • algae growth
  • water lettuce
  • water crest
  • water lillies
• Ecological balance acheived approx. 3 months after installation
  • balance of water/fish/plant load
  • healthy aglae growth on Polyurea and rock
  • clear water without aid of chemicals
  • customer constructed biological filter of
    lava rock and fiber filter media