Expansion joints of reinforced concrete structures in underground and buried parts of buildings are protected against damp, moisture and water under pressure by TECHNONICOL EM and IM series waterstops of plasticised PVC. EM-260/20 and EM-260/50 are external, with EM-260/50 used together with PVC membranes; IM-240/20 and IM-260/50 are internal. The number after the slash in the designation is the width of the expansion section, 20 or 50 mm. The profiles are joined by welding, elongation at break is 300%, brittleness temperature is −40 °C.
| Manufacturer | TECHNONICOL — OOO “Zavod Logicroof”, Ryazan |
|---|---|
| Type | waterstops and swelling profiles |
| Use | joints and junctions, foundations and basements, tunnels and metro |
| Base | profiled strips of plasticised PVC, extrusion |
| Packaging | coils of various lengths in polymer film |
| Application method | protection of expansion joints in reinforced concrete structures of underground and buried parts of buildings and structures against damp, moisture and water under pressure; EM — external (EM-260/50 together with PVC membranes), IM — internal; joined by welding; according to the waterstop design and installation guide, STO 72746455-4.6.2-2015, STO 72746455-4.2.2 |
| Key properties | Shore A hardness 75 ±5 (GOST 2678-94); tensile strength at break 10 MPa; elongation at break 300%, at −20 °C 200% (GOST 11262); change in linear dimensions at 70 °C 2%; brittleness temperature −40 °C (GOST 5960); service temperature range −40…+70 °C; flexibility on a bar R = 10 mm at −10 °C |
| Layer thickness | width: EM-260/20, EM-260/50, IM-260/50 — 260 mm; IM-240/20 — 240 mm; width of the expansion section 20 or 50 mm (as per the designation) |
| Shelf life | 24 months from the date of manufacture; store in a dry enclosed room, avoid sunlight |
| Standards | STO 72746455-3.4.4-2015 |
Data from the manufacturer’s technical data sheet. The coating system, number of coats and quantity are selected for your project on request.
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