POLYPROPYLENE BOARD TECHNICAL DATA

Test Results Regulation were tested at 23°C and 50% relative humidity. Compression was top to bottom

Polypropylene

Regulating Style 2.45kN @ 1.14cm

Locking Base 2.58kN @ 0.76cm

Average load to failure (kN) and deflection (cm)

Test result (average values are quoted)

1. Bursting Strenght - BS 1133. SEC F . APP.M.(1967)

Polypropylene Turnover 0.00

2. Impact strenght - ASTM D -781- 59T

4/710 4/800

Polypropylene @ 20°C 1.1J 1.3J

Drop Hammer Identation Test

Peek Stress to crush flutes	450 - 1200kN/m²
Energy to crush flutes	Approx. 1300 J/m²

Drop Hammer Deceleration Test

Using 31.66cm² circular indentor

Static stress - 2.97kN/m²

Drop Height
Peak Deceleration in Gravitation Units

(mm) Drop 1 Drop 2 Drop 3 Drop 4 Drop 5 Drop 6 Drop 7

150

Sample 1 125 150 >300

Sample 2 150 215 240 >300

Sample 3 440 350 260 260 530*

300

Sample 1 355 140 220 265 >1000*

Sample 2 410 200 280 280 380 920

Sample 3 225 200 270 270

Sample 1 470* 930* >1000*

Sample 2 385 555* 490* 660* 865* 880* >1000*

*Flutes fully crushed on impact

Miscellaneous

Light Transmission (average values are quoted)
75%

Level of surface treatment (to improve print adhesion)
45 dynes/cm

Coefficient of linear thermal expansion
1.1 x 10ˉ per °C

Thermal Transmittance
4.27 (max) to 2.42 (min) – W/m² per °C

0.75 (max) to 0.43 (min) – BTU/ft²h°F

Tensile Strength - ASTMD-828-60

Polypropylene

4/710 4/800

Yield Point 4560kN/m² 5200kN/m²

Break Point 23500kN/m² 27000 kN/m²

Elongation at break 166% 166%

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