Joske M…
Product Description
The Joske - M is a multi layer poured in place Full Pour Polyurethane and rubber running track system. Thickness of the surface can vary depending on the Owners needs and budget. A.T.G. Sports considers 13mm to be the ideal thickness. The specifications herein are based on 13mm. The impermeable running track system consists of (1) base primer, where necessary (2) 10.0mm EPDM rubber and two component polyurethane, (3) 3.0mm texturing coat for traction. The owner has the option of a “Encapsulated” or “Embedded” system texturing coating.
Actual bids will be based on owners’ specified thickness in base bid.
Materials
A) Pavement Primer - .20 kg/m2 (over concrete)
B) Industrial EPDM Rubber - 5.0 kg/m2
C) Two Component Polyurethane A&B - 8.8 kg/m2 (encapsulated) 9.0 kg/m2 (embedded).
D) Gezolan Red EPDM Rubber - 4.0 kg/m2, scattering quantity.
E) Soft Aliphatic Polyurethane - .64 LB/yd*
Amount will vary depending on Texture Coat and thickness required
Installation
A. Pavement Inspection - Check pavement for any irregularities. Area to be surfaced shall not vary from the required line, grade and cross-section set forth in the owner specifications by more than 1/8” in 10’. Any irregularities shall be corrected with polyurethane material. No fillers may be used to repair low areas. High spots shall be ground off prior to installation of shock mat material. Asphaltic pavement must have cured at least 14 days prior to surfacing installation. Concrete surfacing shall have a minimum of 30 days cure time. All areas to be surfaced must be clean from dust or other matter prior to installation.
B) Primer - Polyurethane based Primer shall be applied to the pavement at a rate of .20 kg/m2. Primer shall be formulated to insure adhesion between the paving and the new polyurethane surfacing. Polyurethane mat to be installed within 4 hours of applying primer. Normally primer is only necessary over concrete.
C) 10.0mm Two Component Polyurethane and Rubber - Two component Polyurethane consisting of polyol (Part A) and Isocyanate (Part B) shall be mixed at very precise ratios. The 10.0mm mat shall be approximately 65% two component polyurethane and 35% rubber. The 10.0mm mat shall be flow applied in two layers.
D) 3.0mm Texture Coat: 1) Embedded Texture - The embedded texture is two component Polyurethane which is flow applied over the 10.0mm mat followed by broadcasting colored EPDM rubber granules on top of the wet polyurethane. The Colored Rubber granules shall be broadcast on top of the freshly applied Polyurethane at a rate of 4.0 kg/m2. After the Polyurethane has cured, the excess rubber shall be removed. The embedded rubber which remains shall measure about 2.8 kg/m2. 2) Encapsulated Texture - Texture Coat - Using a structural spray machine, apply a mixture of Polyurethane and EPDM rubber. This mixture shall be 100 parts polyurethane to 45 parts rubber granules by weight. The two component Polyurethane shall be completely mixed and shall encapsulate the rubber. Spray apply a minimum of 2 coats.
E) Aliphatic Top Coat (Encapsulated Texture Only) - Using an airless spray machine, apply two coats of Polyurethane soft aliphatic top coating. This material shall be applied at a rate of not less than .32 lb./yd. per coat. Apply in two layers being sure to spray in opposite directions for each layer. Total application rate shall be .64 lb. per square yard.