TECHNICAL INFORMATION

Type:1	Plywood for Concrete Shuttering (Plain) CS (Durocon)
Type:1	Plywood for Concrete Shuttering with Polymer Coating (Coated) CSC (Durocoat)
Type:1	Plywood for Concretze Shuttering with overlay (Film Faced) CSFF (Durofilm)

Standard Sizes & Thickness : DURO range of Shuttering Grade Plywood is available in the following sizes and thickness :

	l SIZES l
LENGTH X WIDTH		LENGTH X WIDTH
2.44m X 1.22m 2.14m X 1.22m 1.84m X 1.22m 1.54m X 1.22m 1.22m X 1.22m		2.44m X 0.92m 2.14m X 0.92m 1.84m X 0.92m 1.54m X 0.92m 1.22m X 0.92m

TECHNICAL INFORMATION
DURO Range of Shuttering Plywood are BWP Grade, preservative treated and of three types:

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IN PLYWOOD SERIES

Thickness : 4mm, 6mm, 9mm, 12mm, 16mm, 19mm, & 25mm


Weight per Sq. Mtr.: 6 mm - 3.90 Kgs. - 4.62 Kgs 9 mm - 5.85 Kgs. - 6.93 Kgs. 12 mm - 7.80 Kgs. - 9.24 Kgs. 18 mm - 11.70 Kgs. - 13.86 Kgs	Average Glue Shear Strength: l Dry - Not less than 1350 N l Wet - Not less than 1350 N	Average Tensile Strength: l Along the grain – Not less than 352 Kgf/cm² l Acrosss the grain – Not less than 225 Kgf/cm² l Sum of tensile strength in both direction– Not less than 600 Kgf/cm²

BENDING RADII

Thickness of Plywood	Across grain of outer piles	Along grain of outer piles
6 mm 9 mm 12 mm	90 cms 165 cms 250 cms	125 cms 215 cms 330 cms

LOADING AND DEFLECTION

A) Permissible load with face grain parallel to bearers

Centre Distance of bearers	9 mm thick Kg/m²	12 mm thick Kg/m²
30 cms 40 cms 45 cms 60 cms	760 320 195 110	1220 850 640 360

B) Permissible load with face grain perpendicular to bearers

Centre Distance of bearers	9 mm thick Kg/m²	12 mm thick Kg/m²
30 cms 40 cms 50 cms 60 cms	1270 540 320 170	1950 850 640 360

The main criteria of Shuttering Plywood is its ability to perform satisfactory in actual service condition under alternate drying and wetting cycles. However, number of reuses are strictly co-related with the care in handling and storage to be taken by the users at the worksite.