Contech Construction Products, Inc. - Erosion Control Non-Biodegradable

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|Product         |Contech  |Contech   |Contech   |Contech   |Tensar Mat|
|Name            |TRM C-60 |TRM C-61  |ERCM C-45 |ERCM C-50 |TM3000    |
|________________|_________|__________|__________|__________|__________|
|Product Type    |Turf     |Turf      |Erosion   |Erosion   |Turf      |
|                |Reinforce|Reinforce-|Control   |Control   |Reinforce-|
|                |ment     |ment      |Revegeta- |Revegeta- |ment      |
|                |Matrix   |Matrix    |tion      |tion      |Matrix    |
|                |         |          |Matrix    |Matrix    |          |
|________________|_________|__________|__________|__________|__________|
|Composition     |3-D Poly-|3-D Poly- |3-D Poly- |3-D Poly- |3-D Poly- |
| (color)        |olefin   |olefin mat|olefin mat|olefin mat|ethylene  |
|                |mat      |w/nonwov. |(green)   | (green)  | (black)  |
|                |(black)  |geotextile|          |          |          |
|                |         | (black)  |          |          |          |
|________________|_________|__________|__________|__________|__________|
|Roll Width/     |2.0/42.2 |2.0/42.2  |2.0/42.2  |2.0/42.2  |1.5/30.5  | 
|Length m(ft)    |(6.5/    |(6.5/     |(6.5/     |(6.5/     |(5/100)   |
|multiple widths |   138.5)|   138.5) |    138.5)|  138.5)  |          |
|available       |         |          |          |          |          |
|________________|_________|__________|__________|__________|__________|
|Thickness       |         |          |          |          |          |
|ASTM D1777      |  12.7   |   12.7   |   12.7   |  12.7    |  12.7    |
| 2 kPa mm(mils) | (500)   |   (500)  |   (500)  |  (500)   | (500)    |
|________________|_________|__________|__________|__________|__________|
|Mass/Unit Area  |         |          |          |          |          |
|ASTM D5261-92   |475.00   | 576      |  339     |  407     |  407     |
|    g/m2        |   (14)  | (17)     |  (10)    |  (12)    |  (12)    |
|   (oz/sy)      |         |          |          |          |          |
|________________|_________|__________|__________|__________|__________|
|Wide Width      |3.2 x 2.4|5.1 x 3.6/|2.1 x 1.6/|2.1 x 1.6/|175 x 175 |
|Tensile Str/Elg.|/40 max  |85 max    | 50 max   |50 max    |(120 x    |
|ASTM D5035-90   |(220 x   |(350 x    |(145 x    |(145 x    |    120)  |
|kN/m(lbs/ft)/%  |165)/40  |  250)/85 | 110)/50  | 110)/50  |          |
| MD x XD        |    max  |     max  |    max   |    max   |          |
|________________|_________|__________|__________|__________|__________|
|UV Resistence   |         |          |          |          |          |
|ASTM D4355-92   |   90    |    90    |   90     |    90    |    99    |
|% Strength      |         |          |          |          |          |
|Retained @500hrs|         |          |          |          |          |
|________________|_________|__________|__________|__________|__________|
|Limiting Shear  |         |          |          |          |          |
|Stress          |         |          |          |          |          |
|kg/m2(lbs/ft2)  |         |          |          |          |          |
| Bare Soil      |         |          |          |          |          |
|  0.5 hours     |   29.3  |   24.5   |   34.2   |   34.2   |    NA    |
|                |         |          |          |          |          |
|  50 hours      |   13.8  |   13.8   |   14.7   |   14.7   |    NA    |
|                |         |          |          |          |          |
| Vegetated      |         |          |          |          |          |
|  0.5 hours     |   39.1  |   39.1   |   NA     |     NA   |    NA    |
|                |         |          |          |          |          |
|  50 hours      |   24.5  |   24.5   |   NA     |     NA   |    NA    |
|________________|_________|__________|__________|__________|__________|
|Manufacturers   |turf rein|Turf rein-|ditches,  |ditches,  |turf rein-|
|Suggested       |forcement|forcement,|steep     |steep     |forcement,|
|Applications    |channel  |stream    |slopes    |slopes    |erosion   |
|                |lining   |bank &    |          |          |control   |
|                |         |shoreline |          |          |          |
|                |         |protection|          |          |          |
|________________|_________|__________|__________|__________|__________|