water resistant Fiberglass Plywood board for mail box,truck body ,trailer door etc
FRP plywood Fiberglass-reinforced-plastic
(FRP) overlaid plywood is an engineered product consisting of plywood securely bonded between tough glass fiber-reinforced resin
surfaces. The composite produces a strong yet lightweight panel. A thin nonporous surface finish provides color, weather ability and
additional durability. Different surface finishes are available. Glass content and overall thickness of the over-lay can be varied to suit the
performance requirements and economies of a wide variety of end-use applications.
Specifications
Overlay materials: Overlay Materials may consist of
(1) Fiberglass woven roving saturated with resin cured under heat and pressure
(2) glass-fiber mats saturated with resin, partially cured, bonded to plywood substrate and final cured in a hot press under heat and
pressure, or(3) chopped glass strand and resin in sprayed up process, cured under ambient conditions or with heat. Overlay thickness
typically ranges from 1.0-2.0mm.
Glass reinforcing:
Both the amount of glass and its form influence structural capability of the finished composite.
Glass contents typically range from 3/4 ounce to 3 ounces per square foot. Long or continuous fibers oriented parallel to the maximum
stress are preferred for heavy loads. Randomly oriented fibers provide strength in all directions
Core:
Overlay materials are bonded to plywood panels 1/4 inch to 1-1/8 inches or thicker. The plywood grade and thickness, form and weight
of fiberglass reinforcement, and formulation and quality of resin can be varied, depending on the desired balance between cost &performance.
Glass fiber surfaces:
Surfaces may vary from extremely smooth and flat, to pebble embossed, to anti-slip (textured skid-resistant) and water ripple surfaces.
All surfaces are seamless and thus easily cleaned.
Surface finish:
It is impervious to stains, alkalis and solvents, impact and abrasions, and odors.
High gloss with gel coat or sub gloss.
Color:
Pigmentation is added in manufacture, during application of the surface finish. RAl colors are available, Some applications requir
e minimum production runs. Pigmenting the finish strengthens panels against ultraviolet and weathering, and normally eliminates
the need for painting.
Sizes:
FRP plywood is available in 4 x 8-foot panels as well as in large seamless body panels 8 to 10 feet wide and 45 or more feet long for
truck and trailer bodies, containers or other applications.
Uses and Advantages
FRP plywood is used for truck, trailer and van bodies, intermodal and reusable shipping containers, concrete forming,
sewage treatment tanks, walk-in coolers, railcar linings and siding panels, and numerous other demanding applications.
The product combines the structural properties of plywood - durability, bending strength and stiffness, racking resistance, dimensional
stability and workability - with the long-wearing and weatherproof surface of a fiberglass-Reinforced-plastic overlay, which also provides
added strength and stiffness.
Field experience has proven the material tough, rugged and durable. It will not buckle or tear and has no rivets to pop. In fact,
pound for pound, FRP is stronger than either steel or aluminum.
Cargo area is greater because truck and trailer bodies and containers made of FRP plywood require no intermediate posts or vertical
stiffeners. Inside dimensions can be four to seven percent larger than those of metal-skin bodies with the same outside dimensions.
Framing is required only at boundary edges. Cargo control devices can be installed anywhere. No wall liner is required.
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