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D. Minimum curing time for base prior to beginning of surfacing is 14 days for <br /> new asphalt paving and 28 days for new concrete. No concrete curing <br /> compounds are allowed. <br /> E. Beginning installation stipulates track installer"accepts"existing conditions. <br /> Adhesion to the existing asphalt is the surfacing contractor's responsibility. <br /> 3.02 PRODUCT AND MATERIAL DESCRIPTION <br /> A The Spurtan BS synthetic surfacing system shall be a 13 mm thick, <br /> permeable paved mat with structural spray. The base layer is a paved in <br /> place rubber granule and a Qualipur polyurethane binder basemat. <br /> Two coats of a mixture of colored Qualipur polyurethane and Melos EPDM <br /> spray rubber(or approved equivalent)are then structurally sprayed onto the <br /> base to form a textured finish. <br /> B. Rubber(SBR Broadcast): The basemat rubber shall be specifically graded <br /> Styrene Butadiene Rubber(SBR). SBR is to be dried to no less than 2.5% <br /> moisture and sealed in bags. <br /> C. Basemat Binder:The basemat shall be bound by a moisture-cured,Qualipur <br /> polyurethane, compatible with the basemat rubber. No asphaltic emulsions <br /> or epoxies are allowed in the basemat. Installation of the basemat shall take <br /> place with a specially designed track-paving machine to an average finish <br /> depth of 10 mm. No sprayed basemat systems will be allowed. <br /> D. One-Component Structural Spray: The basemat shall be coated by a one <br /> component,solvent based, Qualipur polyurethane resin based, structural <br /> spray mixed with Melos spray rubber(or approved equivalent). <br /> 3.03 APPLICATIONS PROCEDURES <br /> A The entire asphalt or concrete track surface shall be clean and free of dirt, <br /> oil, grease or any other matter upon arrival of the installation team.Any dirt, <br /> construction debris etc. shall be pressure washed off the base by the general <br /> contractor prior to the arrival of the track installation crew. <br /> B. Prime entire surface area with a compatible Qualipur polyurethane primer. <br /> Qualipur 1020 for asphalt and Qualipur 1220 for concrete or over an existing <br /> surface at an approximate rate of.16 kg/m2(.30 lbs/yd2). <br /> C. The basemat is to be applied at an approximate total rate of 10.17 kgs/m2 <br /> (18.75 lbs/yd2). 8.13 kgs/m2(15.00 lbs/yd2)of SBR broadcast rubber <br /> combined with 2.03 kgs/m2(3.75 lbs/yd2)of a Qualipur polyurethane binder is <br /> needed to achieve an average finished depth of 10 mm.The installation of <br /> the basemat is to take place using a paving machine that is specifically <br /> designed for this type of application. <br /> Advanced Polymer Technology <br /> 109 Conica Lane• PO Box 160•Harmony PA 16063 <br /> 724-452-1330•wtyw,advoolytech.com <br /> -4- <br />