Popular: Sikaflex · waterproofing · grout · data sheets
Linings and coatings that protect concrete and steel from acids, sewage gases, fuels and industrial chemicals in treatment plants, chemical tanks, bunds and manholes. The coating is chosen for the actual chemicals, concentrations and temperatures, on a strong, prepared substrate.
General guidance based on the manufacturer data sheets. Site conditions differ: confirm the system with MCT before you start. Where we do not name a product, ask us and we will confirm the right one.
List the chemicals, concentrations, temperatures and whether contact is splash or immersion; check each product's chemical-resistance data with us. Sikagard M 790 and Permacor-3326 EG H have test evidence for biogenic sulphuric acid in sewage (Sikagard M 790 p.2; Permacor-3326 EG H p.1).
Blast or mechanically prepare the concrete. Pull-off strength at least 1.5 N/mm² average, lowest 1.0 N/mm² (Sikagard P 770 p.3; Permacor-3326 EG H p.3). Sikagard PW also needs at least 25 N/mm² compressive strength (Sikagard PW p.3). Concrete at least 3–6 weeks old (Sikagard-63 N p.3).
Rebuild eroded concrete with SikaEmaco S 488, listed for water treatment and sewerage facilities before coating (Emaco S 488 p.1). Level and fill pores with Sikagard-720 EpoCem, which also protects concrete in aggressive environments and acts as a temporary moisture barrier under resin coatings (Sikagard-720 EpoCem p.1).
SikaEmaco® S 488 is used for the structural repair of concrete elements such as: Columns, piers and cross beams of bridges, Cooling towers and chimneys and other industrial environments, Water treatment and sewerage facilities before subsequent coating, Tunnels, pipes, outfalls and all below grou… (TDS p.1)
Thin layer render Concrete pore filler/ levelling mortar Repairing minor defects (pores and honeycombed concrete) Protecting concrete in aggressive and chemical environments As a Temporary Moisture Barrier (TMB) for Sikafloor® or Sikagard resin products Sui… (TDS p.1)
Sikagard-63 N must not go on moist substrates (p.3). On damp concrete use the moisture-tolerant Sikagard P 770 primer under Sikagard M 790 (Sikagard P 770 p.1), or SikaCor-950 F where application onto damp concrete is unavoidable, at most 6 % moisture (SikaCor-950 F p.1, p.3).
Sikagard® P 770 is used as primer on mineral substrates for several approved Sikagard® and Sikalastic® systems. (TDS p.1)
Protective coating for concrete and steel, for buried and submerged structures for hydraulic engineering constructions and as internal coating for tanks and reservoirs, e.g. (TDS p.1)
Sikagard-63 N epoxy-novolac for chemical tanks, bunds and fuel and oil tanks, minimum 2 layers, 3 in harsh conditions (Sikagard-63 N p.1, p.2). Sikagard M 790 crack-bridging membrane for waste water, manholes, biogas and bunds (p.1). Sika Permacor-3326 EG H for sludge digesters and waste-water and chemical tanks (p.1). Sikagard PW where the lining must also suit potable water (p.1).
Chemical resistant protective coating on: Concrete, Stone, Cementitious mortars, Renderings, Epoxy cement, Epoxy resin-based products. (TDS p.1)
Sikagard® M 790 is used in all protection applications where a high level of chemical resistance is required. This includes: Waste water treatment plants both in the inflow and outflow areas, Sewage effluent pipelines and manholes, Biogas plants, Secondary containment bunds in chemical and petroc… (TDS p.1)
Sika® Permacor®-3326 EG H is ideally suited for the corrosion protection of steel and concrete surfaces exposed to various media. (TDS p.1)
Chemical resistant protective layer on concrete, structural cementitious mortars, epoxy cement, epoxy resin based products and steel Protection of concrete surfaces / foundations below ground level Lining in storage tanks, manholes, intakes and silos etc. (TDS p.1)
Sikaflex Tank N is designed for joints in storage tanks, containment bunds and petrol station floors handling water-polluting liquids; professional applicators only (Sikaflex Tank N p.1). Prime porous substrates as its TDS directs (p.4).
Sikaflex® Tank N shall be used by professional applicators only. (TDS p.1)
Protect fresh Sikagard-63 N and Sikagard PW from rain, condensation and water for at least 24 hours (Sikagard-63 N p.3; Sikagard PW p.3). Apply on falling temperatures to avoid pinholes (Sikagard PW p.3). Permacor-3326 EG H allows the coating to be checked for pores (p.1).
A starting point for a site proposal. Quantities, prices and the final specification follow a site visit or photos.
| Step | Product | Pack | Source |
|---|---|---|---|
| 3. Repair and level | SikaEmaco S 488 | 25 kg bag | TDS p.1 · June 2025, Version 05.01 |
| 3. Repair and level | Sikagard-720 EpoCem (professionals) | Pre-batched 21 kg sets. | TDS p.1 · May 2021, Version 02.01 |
| 4. Damp substrates | Sikagard P 770 | — | TDS p.1 · February 2025, Version 06.01 |
| 4. Damp substrates | SikaCor-950 F (professionals) | — | TDS p.1 · December 2022, Version 03.01 |
| 5. Apply the chemical-resistant lining | Sikagard-63 N (professionals) | 10 kg Kit consisting of | TDS p.1 · May 2025, Version 04.02 |
| 5. Apply the chemical-resistant lining | Sikagard M 790 | Sikagard® M 790 is available in | 5 kg Kits consisting of 1.5 kg Part A and 3.5 kg… | TDS p.1 · February 2025, Version 06.01 |
| 5. Apply the chemical-resistant lining | Sika Permacor-3326 EG H (professionals) | — | TDS p.1 · December 2022, Version 05.02 |
| 5. Apply the chemical-resistant lining | Sikagard PW (professionals) | — | TDS p.1 · May 2021, Version 02.01 |
| 6. Seal bund and forecourt joints | Sikaflex Tank N (professionals) | — | TDS p.1 · September 2023, Version 01.02 |
Sikagard M 790 (in the Sikagard-7000 CR system) and Sika Permacor-3326 EG H have test evidence for biogenic sulphuric acid (Sikagard M 790 p.2; Permacor-3326 EG H p.1).
Sikagard-63 N cannot (p.3). Sikagard P 770 primer is moisture tolerant (p.1), and SikaCor-950 F can be used where damp concrete is unavoidable (SikaCor-950 F p.1).
Of these, only Sikagard PW states suitability for direct contact with potable water (Sikagard PW p.1). SikaCor-950 F is not for drinking water (SikaCor-950 F p.1).
Pull-off at least 1.5 N/mm² on average (Sikagard P 770 p.3; Permacor-3326 EG H p.3). Sikagard PW also needs at least 25 N/mm² compressive strength (Sikagard PW p.3).
Sikaflex Tank N is designed for joints in storage tanks, bunds and petrol station floors handling water-polluting liquids, applied by professionals only (Sikaflex Tank N p.1).
Steps and product facts are taken from the manufacturer data sheets (page cited). Products are named only where the data sheet confirms the use; quantities follow a site visit or photos. General guidance: check the data sheet or ask us before you start.