2.1.4.3
Structural Component
Recycled plastic materials will not be used as load bearing structural
members.
2.1.4.4
Recycled Plastic Molded As Lumber
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NOTE: Recycled plastic molded as lumber and
wood-polymer lumber are susceptible to both creep
and deflection; therefore, it cannot be used for a
load bearing structural member of playground
equipment. To overcome creep and deflection, the
product is increased in volume of material and
dimension.
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For deck or platform construction, the span of the structural support
members shall be a maximum 300 mm 12 inches on center and recycled plastic
decking shall connect to a minimum three joists. Material used for decking
shall have a non-slip texture surface. The assembly shall deflect a
maximum 1/360 of the span of the frame when exposed to a uniform live load
of 585 N/m 40 lbs/ft, ASTM D 648. The product shall meet the structural
integrity test requirements, ASTM F 1487 and ASTM D 6112.
2.1.5
Coatings
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NOTE: Regional climatic conditions must be
considered when selecting playground equipment.
Regions that are extremely hot have considerations
for equipment selection that are different from
regions with freezing conditions. Contact burn
injury or contact skin freezing are serious safety
concerns. The coatings of the play equipment become
extremely important to avoiding these conditions.
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2.1.5.1
Galvanized
Metal components shall be hot-dipped in zinc after fabrication according to
ASTM A 123/A 123M. Tailings and sharp protrusions formed as a result of
the hot-dip process shall be removed and edges shall be burnished.
2.1.5.2
Polyester Powder
Powder-coated surfaces shall receive electrostatic zinc coating prior to
painting. Powder coating shall be electrostatically applied and shall be
oven cured. Polyester powder shall be in accordance with the following:
ASTM D 3359 for adhesion; ASTM D 1735 for flexibility; ASTM D 3363 for
hardness; ASTM D 2794 for impact; ASTM D 2454 for overbake resistance; ASTM
B 117 for salt spray resistance; and ASTM D 822 for weatherability.
2.1.5.3
Polyvinyl Chloride (PVC)
PVC coating shall be primed with a clear acrylic thermosetting solution.
The primed parts shall be preheated prior to dipping. The liquid polyvinyl
chloride shall be UV stabilized and mold-resistant. The coated parts shall
be cured. The coating shall be a minimum 2 mm 0.08 inch thick within a
SECTION 02882
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