Reinforced UltraTech
The following is a specification for EPI's Reinforced UltraTech geomembrane and is recommended for use as a guideline in specifying lining and cover membrane.
UltraTech is a polymeric lining material made from a synthetic compound formulated with polymers, resin modifiers and stabilizers. UltraTech is noted for its high tensile strength and flexibility over a broad temperature range. It offers excellent weatherability and chemical resistance.
The Reinforced UltraTech flexible membrane provides high dimensional stability through its three-layer construction: two layers of UltraTech with a scrim fabric sandwiched between. It is manufactured totally by calendering, with each ply laminated to the next ply through the openings in the scrim weave to produce a pinhole-free membrane.
The open-weave supporting fabric has a 16 x 8, 2:1 leno weave 250 warp/500 fill denier (8 x 8 - 500d apparent) construction. The single ply of supporting fabric is totally encapsulated within the 2 plies of membrane, giving a 3-ply construction of nominal 35 mil thickness.
Reinforced UltraTech Benefits
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Weather resistance: Does not require earthen cover. - Resistant to petrochemicals.
- Flexibility for three dimensional performance.
- Large panels eliminate field seams
- Custom size and shape panels.
MINIMUM PHYSICAL PROPERTIES:
| PROPERTY | TEST METHOD | MINIMUM SPEC | TYPICAL AVERAGE |
| Total Thickness | ASTM D-751 | 32 MIL | 35 MIL |
| Thickness Over Scrim | Optical | 11 | pass |
| Tensile Properties | ASTM D-751 | ||
| 1. Breaking Pounds (grab method) | 110 | 132 | |
| 2. Elongation at Break (%) | 125 | 151 | |
| Tear Propagation (lbs.) (tongue tear) | ASTM D-751 | 12 | 15 |
| Hydrostatic Resistance (lbs) | ASTM D-751 (Method A) | 135 | 150 |
| Puncture Resistance (lbs) | FTMS 101B (Method 2031) | 140 | 160 |
| Bonded Seam Strength (lbs) | ASTM D-751 (Modified) | 110 | 132 |
| Ply Adhesion (lbs/inch) | ASTM D-413 (Type A) | 8 | 9 |
| Ozone Resistance | ASTM D-1149 (1/8" bent loop,100 pphm, 104°F, 7 days) |
No Cracks at 7x | pass |
| Low Temperature | ASTM D-2136 (1/8" mandrel, 4 hrs at -0°F) |
pass | -10 pass |
| Factory Fabricated Seams: | |||
| Peel Strength (lbs/in width, min) | ASTM-D882 | 10 / FTB | |
| Shear Strength (lbs/in width, min) | ASTM-D882 | 110 | |
ASTM D-471: (Total Immersion for 7 days at 72°F ± 4°F) TYPICAL CHANGE TEST FLUID IN MASS ASTM Oil #1 1% ASTM Oil #3 1% ASTM Fuel A 2% Crude Oil 2% Vegetable Oil 1% Neatsfoot Oil 1%
CAUTION: Due to the wide variety of crude oils and petroleum based products from different crude based stocks, testing of each material to be contained should be carried out at conditions approximating expected field use to conform suitability.
These data are based on tests believed to be reliable. However, these are laboratory tests that may not simulate actual use conditions. They are provided for your information purposes only. No warranty, express or implied, including any other further warranty of fitness for a particular purpose or merchantability, is made by this promotional literature.
UltraTech is also available unsupported.
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