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General
Description
SpectraTrack
SW is a three layer, insitu, spike resistant, colored, impermeable,
resilient polyurethane athletic surface. The total minimum recommended
thickness is 13mm (1/2"). The base layer consists of black SBR*
granules bound together with a specially formulated, single component
polyurethane. Conipur 322*. The second layer consists of a specially
formulated, colored thixotropic polyurethane. Conipur 203*, which is
used to seal the base mat. The top layer consists of a specially formulated,
colored polyurethane. Conipur 210, into which colored EPDM granules
have been embedded before curing.
Recommended
Method of Installation
Asphalt
Check
The asphalt must be impervious and the finished level must not vary
more than +/- 4mm when measured with a 3 meter long straight edge. High
areas shall be milled off or ground off or heated and scraped to reach
the required level. Low spots shall be cleaned, primed and leveled with
Conipur 210 A/B mix to obtain the required level.
Installation
of SpectraTrack SW
Ensure that the asphalt base is clean and dry. Remove any mud debris
or foreign matter by sweeping, scraping or blowing.
Application
of Primer
Using an airless spray machine, spray on Conipur 70 evenly at the rate
of 0.15kg/sqm (.03 lb/sq. yd.). Allow the solvent to evaporate before
applying the base layer.
Mixing
of Conipur 322 and SBR Granules
Conipur 322 and 1-4mm clean, dry SBR granules are mixed in a force mixer**
at a recommended ration of 100 parts SBR granules to 20 parts Conipur
322 by weight.
Application
of the Base Layer
The mixed material is applied to the asphalt base at a thickness of
approximately 10mm using a specially designed pave which utilizes a
heated screed designed to level and compact the resilient base layer.
The base layer is then allowed to cure (harden). The curing process
depends on temperature and humidity and normally occurs within 24 hours.
Sealing
the Base Layer
The base layer is sealed using a two part, specially formulated thixotropic,
polyurethane, Conipur 203. Conipur 203 Part A and Part B are mixed in
a force mixer at a ration of 3:7:1 by weight. In order to achieve a
homogeneous mix, the mixed material should be poured into another mixing
vessel and remixed (this step is very important and avoids soft spots
due to improper mixing). The mix is then poured onto the resilient base
and, using a straight edged trowel or squeegee, the surface is sealed
by scraping the material into the open pores.
Application
of the Top Layer
Weigh out a batch of Conipur 210 Part A and Part B into two separate
containers in the ratio of 100:65 by weight. Pour the two parts into
a mixing container and thoroughly mix using a forced mixer**. When mixed,
transfer the mixed material into another container and remix (this ensures
a homogeneous mix and is very important).
The mixed
material is then poured onto the sealed resilient base layer, spread
using a notched squeegee to give a coverage rate of 2.2kg/sqm. (4.3
LB/sq.yd.). Conipur 210 is self leveling. While still liquid, clean,
dry 1-4mm colored EPDM granules are broadcast into the surface to excess.
After curing (hardening) the excess EPDM granules are recovered for
reuse.
*Other
Conica recommended products can be used in place of those mentioned
**In place of batch mixing a specially designed continuous mixer can
be utilized
Line
Marking / Event Marking
The track shall be surveyed by an accredited surveyor and all lane and
event markings shall be according to I.A.A.F. guidelines.
Line
/ Event Spraying
Lanes and events shall be sprayed using a specially formulated two part
polyurethane paint, to I.A.A.F. recommendations and a certificate issued.
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