Raven Industries Inc.- Geomembrane Product Data

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|Product         |Rufco-   |Rufco-    |
|Name            |EX20     |EX30      |
|________________|_________|__________|
|Polymer         |CX       |CX        |
|Type            |(HD/VL/  |(HD/VL/HD)|
|                | HD)     |          |
|________________|_________|__________|
|Roll Width      |[A]      |[B]       |
|Roll Length     |         |          |
| m(ft)          |         |          |
|________________|_________|__________|
|Thickness       |.5 (20)  |.75 (30)  |
|ASTM D751       |         |          |
|mm(mils)        |         |          |
|________________|_________|__________|
|Density         |HD 0.94  |HD 0.94   |
|ASTM D1505      |VL 0.91  |VL 0.91   |
|________________|_________|__________|
|Tensile Strength|         |          |
|ASTM D638       |         |          |
|kN/m(lb/in)     |         |          |
|                |         |          |
|Yield           |4.9 (28) |8.4 (48)  |
|Elongation %    |10       |15        |
|                |         |          |
|Break           |14 (80)  |22 (128)  |
|Elongation%     |800      |800       |
|                |         |          |
|________________|_________|__________|
|Puncture        |.13 (30) |.19 (42)  |
|Resistence      |         |          |
|FTMS 101C       |         |          |
|Method 2065     |         |          |
|kN (lbs)        |         |          |
|________________|_________|__________|
|Tear Resistence |.04 (10) |0.8 (17)  |
|ASTM D1004      |         |          |
| kN (lbs)       |         |          |
|________________|_________|__________|
|Low Temp.Brittle|-70 (-94)|-70 (-94) |
|ASTM D746 C(F)  |         |          |
|________________|_________|__________|
|Seam Strength   |         |          |
|ASTM D 4437     |         |          |
|kN/m (lbs/in)   |         |          |
|Shear- Fusion   |5.4 (31) |7.2 (41)  |
|                |         |          |
|Shear- Extrusion|NA       |NA        |
|________________|_________|__________|
|Peel- Fusion    |4.5 (26) |6.8 (39)  |
|                |         |          |
|Peel- Extrusion |NA       |NA        |
|________________|_________|__________|
|Carbon Black    |2.5      |2.5       |
|ASTM D 1603 (%) |         |          |
|________________|_________|__________|
|Envir. Stress   |200      |200       |
|Crack Resist.   |         |          |
|ASTM 5397 Hours |         |          |
|________________|_________|__________|
|Manufact.       |CL,LC,DP,|CL,LC,DP, |
|Suggested       |RP,DL,TL,|RP,DL,TL, |
|Applications    |SIL,LPL, |SIL,LPL,  |
|                |SIC      |SIC       |
|________________|_________|__________|