Wetisol S-MP1 — polyurethane primer for polyurea
One-component moisture-curing primer for polyurea on concrete, metal, bituminous and other non-rigid substrates; applied from −10 °C.

WETISOL Ecto Block M, a fibre-free thixotropic non-shrink cement-based compound, is intended for repairs in highly aggressive media. It is used to fill chases when sealing joints, abutments, cracks and service penetrations in concrete at wastewater treatment plants, in sewer collectors, pumping stations, tunnels and at hydraulic facilities. The compound withstands ammonium, magnesium, alkaline, sulphate and gas attack, dark petroleum products and mineral oil. Watertightness is not below W14, bond to the substrate at least 1.8 MPa, and the next layer can be placed after 2 h.
| Manufacturer | Wetisol (INGRI) — OOO “Ingri” |
|---|---|
| Type | coating waterproofing |
| Use | joints and abutments, hydraulic structures and dams, bridge structures, tunnels and metro, tanks and pools |
| Base | non-shrink thixotropic cement-based waterproofing compound: high-activity Portland cement, mineral aggregate, functional additives (without fibre) |
| Colour | grey |
| Packaging | 20 kg bucket |
| Application method | sealing of horizontal, vertical and overhead joints, abutments and cracks in concrete and reinforced concrete, service penetrations; sound substrate (concrete of class at least B22.5); chase at least 25 mm deep and wide, for cracks — 50 mm longer than the crack at both ends; remove damaged concrete with a low-power impact tool, flush or blow out the chase; clean exposed reinforcement and treat it with ZIVKON RP 7201 (clearance at least 20 mm); eliminate active leaks beforehand with WETISOL Ecto SF; moisten the substrate generously, without puddles; water 2.8–3.0 kg per 20 kg (max 3.0 l), mixer at max 300–400 rpm for 2–3 min, pause 2 min while cleaning the walls, mix again for 2–3 min; do not mix more than can be used in 30 min; fill the chase tightly, compacting around the reinforcement; layer max 40 mm, the next one after 2 h over scored notches; do not apply to dry, seeping or frozen substrates |
| Application temperature | air and substrate +5…+35 °C; material not below +5 °C; below +10 °C — warm mixing water |
| Curing | retention of properties (pot life) at least 30 min at +20 °C; after 1–2 h moisten the filled chase and the adjacent concrete, keep moistening for 3 days |
| Key properties | watertightness grade of the mortar at least W14 (GOST 12730.5); frost resistance at least F2300 (GOST 10060); compressive strength at least 10 MPa after 1 day and 30 MPa after 28 days (GOST 30744); flexural tensile strength at least 4 MPa after 1 day and 8 MPa after 28 days (GOST 30744); bond strength to the substrate at least 1.8 MPa (GOST R 58277); workability grade Pk2 (GOST 5802); density 2,100–2,200 kg/m³ (GOST 12730.1); maximum aggregate size 0.63 mm, not more than 0.5% (GOST 8735); non-shrink; resistant to a highly aggressive environment (NH4+ over 2,000 g/m³), magnesium attack (up to 10,000 g/m³), alkaline attack (10% NaOH), gas attack (hydrogen sulphide up to 0.0003 g/m³, methane up to 0.02 g/m³), sulphate attack (SO3 up to 10,000 mg/l), dark petroleum products and mineral oil; service temperature from −40 to +60 °C |
| Layer thickness | layer max 40 mm per application; chase at least 25×25 mm |
| Consumption | 1,830 kg per 1 m³; per 1 m of joint: chase 25×25 mm — 1.2 kg, 30×30 mm — 1.7 kg, 40×40 mm — 3.1 kg, 50×50 mm — 4.8 kg |
| Shelf life | 6 months from the date of manufacture in packaging in covered dry warehouses with air humidity max 60% |
| Standards | TU 23.64.10-098-94613022-2022; SP 28.13330.2011, SP 70.13330.2012, SP 71.13330.2017; fire safety — not subject to certification |
Data from the manufacturer’s technical data sheet. The coating system, number of coats and quantity are selected for your project on request.
One-component moisture-curing primer for polyurea on concrete, metal, bituminous and other non-rigid substrates; applied from −10 °C.
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