Corkeen® Surface Specifications

1 – General

1.1 Summary

  • Corkeen® Play Original Playground Surfacing is a 2-layer, seamless system comprised of a base layer of 100% subproduct from cork stoppers extraction, granulated cork & polyurethane binder and a top layer of the same origin granulated cork and polyurethane binder. The porous system is field applied in any configuration and dimension to achieve required fall heights.

1.2 Safety and Testing:

A) American Society for Testing and Materials (ASTM):
  1. ASTM-F1292 (Latest Edition) – Standard Specification for Impact Attenuation of Surfacing Materials within the Use Zone of Playground Equipment.
  2. ASTM-F3313 (Latest Edition) – Standard Test Method for Determining Impact Attenuation of Playground Surfaces Within the Use Zone of Playground Equipment as Tested in the Field.
B) BS and EN:
  1. BS 7188 – Ease of ignition, Tensile properties, Elongation, Resistance to wear, Slip resistance wet and dry, Resistance to indentation.
  2. EN ISO 5470 – Resistance to wear.
  3. EN 12616 – Permeability.

1.3 Performance Requirements:

  • Shock attenuation (ASTM F1292) Gmax – Less than 200.
  • Head injury criteria (ASTM F1292) HIC – Less than 1000.
  • Accessibility: Expected to test according to requirements of ASTM F1951.
  • Ease of ignition BS 7188: Pass
  • Tensile properties BS 7188: 0.38 MPa (informational only, relevant for synthetic surfaces).
  • Elongation BS 7188: 12% (informational only, relevant for synthetic surfaces).
  • Permeability EN 12616: 72,000 mm/h
  • Resistance to wear EN ISO 5470-1: 0.55 g
  • Resistance to wear BS 7188 and ISO 5470 H18 wheels 500g weight per arm:
    • New – Pass (Wear index = 0.525 g, Wear ratio = 1.27)
    • After hot air aging – Pass (Wear index = 0.621 g, Wear ratio = 1.44)
    • After hot water aging – Pass (Wear index = 0.643 g, Wear ratio = 1.32)
  • Dry Slip Resistance BS 7188: 100, Pass
  • Wet Slip Resistance BS 7188: 42, Pass
  • Resistance to indentation BS 7188:
    • Residual indentation: 32.6 mm (informational only, relevant for synthetic surfaces).
    • No damage: Perforation (informational only, relevant for synthetic surfaces).

1.4 Approvals:

  • Corkeen® Play Original is certified by the International Play Equipment Manufacturers Association (IPEMA). Contact manufacturer for information on approvals by major owners, agencies and other industry entities. Environmental Consideration; this system makes extensive use of granulated cork which is a natural CO2 retention material and a subproduct from the cork-stoppers industry.

1.5 Submittals:

  • General: Submit listed submittals in accordance with Conditions of the Contract and Division 1 Submittal Procedures Section.
  • Product Data: Submit manufacturer’s product data and installation instructions.
  • Verification Samples: Submit manufacturer’s standard verification samples of 9″ x 9″ minimum.
  • Quality Assurance/Control Submittals: Submit the following:
    • Certificate of qualifications of the surfacing installer.
  • Closeout Submittals: Submit the following:
    • Warranty documents specified herein.

1.6 Quality Assurance:

  • Utilize an installer trained and approved by the manufacturer, having experience with other projects of the scope and scale of the work described in this section:
    • Approved installer: Safety Turf, Inc. P.O. Box 908, Royersford PA 19468. 1-800-804-4595.
    • If requested, impact attenuation results can be provided per ASTM-F3313 Impact Attenuation of Playground Surfaces Within the Use Zone of Playground Equipment as Tested in the Field for an additional cost.

1.7 Delivery and Storage:

  • Deliver materials in manufacturer’s original, unopened, undamaged containers with identification labels intact.
  • Store materials protected from exposure to harmful environmental conditions and at a minimum temperature of 40 degrees F and a maximum temperature of 90 degrees F.

1.8 Project Site Conditions:

  • Install surfacing on a dry sub-surface with no prospect of rain within initial drying period, and within 50 degrees F and 90 degrees F.
  • An inclination of 1 % for “flat” surfaces is important, especially if the subbase has low or no permeable properties, like asphalt or concrete.
  • There are three (3) Sub-Base applications acceptable for Poured In Place.
    • Applications. Any of these suggestions needs to be able to comply with permeability of Corkeen® and assure stability and adhesion:
      • Installations may be performed over 4” minimum compacted stone base PennDot 2B (3/4” clean) or #57 Crushed Stone.
      • Installations may be performed over fully cured (30 days) Asphalt (with proper drainage).
      • Installations may be performed over Concrete (porous or not, porous preferable) with a minimum of 7 Days cure time and as much as 30 days dependent on conditions and temperature.
  • Other Sub-Base requirements:
    • Load bearing capacity – The subbase needs to have a capacity to support the loads applied to the ground. The key is to make sure that no shoe marks show, when walking on the subbase prior to installation.
    • Hardness – The subbase should be hard, and compacted, no flexibility appearing in the subbase.
    • Other Conditions – We recommend a clean surface with no organic material on top of the subbase. The subbase should be dry and waste free. The subbase should always be inspected and approved by the installation supervisor prior to installation.
  • Barricade area to prohibit foot traffic on the surface for the time specified by the manufacturer.

1.9 Limitations:

  • Some chemicals may cause damage to the playground surface and should be avoided. They include disinfectants, concentrated chlorine bleach, gasoline, diesel fuel, hydraulic and lubricating oils, acids and organic solvents. Though not commonly used in water play areas, pool surrounds and similar applications, dissolved minerals and other chemicals (hydrochlorides) may cause surface discoloration over time. This condition, should it occur, is not considered to be a product failure.

1.10 Warranty:

  • Playground surface shall maintain required impact attenuation characteristics and be guaranteed against defects in workmanship and materials for a period of no less than (5) Five Years from date of completion of work. Typical wear, abuse, or neglect will be excepted. Maintenance requirements must be maintained for duration of warranty period.

1.11 Maintenance:

  • Hose off entire playground surface to remove food, drink, sand, dirt and loose debris. The surface is best cleaned with brushes and water. While surface is still damp, apply a mild household or commercial cleaner to a small area using a sprayer. Scrub using a medium bristle brush. Once entire surface has been cleaned, rinse using a garden hose with spray nozzle attachment. To increase longevity and performance of your surfacing it is recommended to maintain monthly maintenance work.
  • As a preventative measure, leaves and other organic material must be removed with a leaf blower and/or regular sweeping. This kind of cleaning prevents aging of the system, rotting caused by moss, algae, and weeds. It also prevents other vegetation to take roots.
  • Remove sand and gravel, which can cause the risk of breaking down and deteriorating the surface. Should additional maintenance recommendations be necessary contact the manufacturer or technical services.

1.12 Technical Services:

  • For technical assistance contact Brand Master – William (Bill) D. Famiglietti, CEO Joint Ventures North America, AMORIM Cork Composites USA, 26112 110th St, Trevor WI 53179 (262)869-9002.

2 – Products

2.1 Playground Surface:

  • Playground surface shall consist of a mix of natural materials with an agglomeration binder meeting the requirements of this specification. A primer application should be considered before the base layer is applied. Corkeen® Play Original components shall be installed by a certified installer.
    • Certified Installer: Safety Turf, Inc. P.O. Box 908, Royersford PA 19468. 1-800-804-4595.

2.2 Base Layer:

  • Primer: Polyurethane. Corkeen binder BT01.1 or similar as per manufacturers instructions.
  • Corkeen® Base Layer Engineered Cork Granules L. Color: Natural Cork Color (beige).
  • Corkeen® Play Original: Blend 100% granulated cork and Polyurethane to the proper ratios based on weight.
  • Base Thickness: May vary as determined by the fall height of the play equipment and as required to meet ASTM F1292 requirements for critical fall height.

2.3 Top Layer:

  • Aromatic Polyurethane Primer. Corkeen binder BT01.1 or similar as per manufacturers instructions.
  • Corkeen® Top Layer Engineered Cork Granules.
  • Colors: Cork natural color (some variation expected, given that it is a natural material).
  • Poured In Place Top Layer: Blend of Top layer engineered cork granules and Polyurethane.
  • Nominal thickness of Cork Top Layer 0.59″, with a minimum 0.325″ and a maximum 0.625″.
  • System Total Thickness: To be not less than the fall height of the play equipment which may vary and as required meet ASTM F1292 requirements for critical fall height.

2.4 Performance Requirements:

  • Impact Attenuation: Critical fall height tested according to ASTM F 1292 for equipment as specified in Drawings.
  • Accessibility Standard: Minimum surfacing performance according to ASTM F 1951 (Testing in process).

3 – Execution

3.1 Compliance:

  • Comply with the instructions and recommendations of the surfacing manufacturer.

3.2 Examination:

  • Verification of Site Conditions: Verify that substrate conditions are suitable for installation of the poured in place surfacing. Do not proceed with installation until unsuitable conditions are corrected.
  • Drainage: Proper drainage is critical to the longevity of the surfacing system. Inadequate drainage will cause premature breakdown of the poured system in affected areas; and void the warranty.

3.3 Preparation:

  • Existing Substrate Preparation: Remove any loose or delaminated material that would be deleterious to application of the new surface. Fill cracks in existing concrete with cementitious patching compound.
  • Surface Preparation: Using a brush or short nap roller, apply primer to the sub-base surface, sub-base perimeter and any adjacent vertical barriers (such as playground equipment).The sub-base will show different consumption levels according to its characteristics.

3.4 Installation:

  • Do not proceed with playground surfacing installation until all applicable site work, including substrate preparation, fencing, playground equipment installation and other relevant work, has been completed. Consider dust and traffic in adjacent work areas that may impact surfacing finish.
  • Primer Application: Using a brush or short nap roller, apply primer to the base layer, base layer perimeter and any adjacent vertical barriers that will contact the surfacing system. The approved Brand Master should use Corkeen’s recommended and approved installation tools.
  • Base Layer Installation:
    • Using screeds and hand trowels, install the base layer to the specified thickness. The Brand Master should use Corkeen’s recommended and approved installation tools and methods to achieve the target density.
    • Allow base layer to cure for sufficient time so that indentations are not left in the base layer from applicator foot traffic or equipment.
    • Do not allow foot traffic or use of the base layer surface until it is sufficiently cured.
  • Top Layer Installation:
    • Using a hand trowel, install top layer to a nominal thickness of 0.5″. The Brand Master should use Corkeen’s recommended and approved installation tools and methods to achieve the target density.
    • Allow top layer to cure for a minimum of 48 hours with Aromatic binder and up to 72 hours with Aliphatic binder, (dependent on weather conditions).
    • At the end of the minimum curing period, verify that the surface is sufficiently dry and firm to allow foot traffic and use without damage to the surface.
    • Do not allow foot traffic or use of the surface until it is sufficiently cured.

3.5 Field Quality Control:

  • Testing Agency: CSPI certified representative or another qualified testing agency to perform tests and inspections.
  • Perform the following tests and inspections (if a project requirement):
    • Perform inspection and testing for installed playground surface according to ASTM F 1292. Must meet the critical fall height requirements of the playground equipment (may be additional cost).
  • Playground surfacing will be considered defective if they do not pass tests and inspections.
  • Prepare test and inspection reports.

3.6 Protection:

  • Protect the installed surface from damage resulting from subsequent construction activity on the site.

3.7 Product Substitutions:

  • Substitutions: No Substitutions Permitted.