Sewage treatment plants, wastewater tanks and other water retaining structures are exposed to a combination of moisture, chemical attack, abrasion and continuous thermal or structural movement. For these environments, waterproofing is not simply about stopping water from passing through concrete. The coating also needs to function as a durable protective barrier against the conditions that can progressively deteriorate the substrate.
Tankgard™ SG by Multichem Group, is a solvent free, two component, Sewage Treatment Plant grade polyurethane waterproofing coating developed for demanding service environments. It is a 100% solid, high build elastomeric coating that cures into a seamless, flexible membrane with chemical and abrasion resistant properties.
Tankgard™ SG is a two-component polyurethane-based elastomeric membrane. The two components react to form a continuous film that remains flexible and elastic after curing.
Its high-build properties help create a substantial protective layer, while its elastomeric nature allows it to accommodate a degree of substrate movement. Among specialised waterproofing products for demanding industrial environments, Tankgard™ SG is designed for applications requiring a combination of waterproofing, flexibility and concrete protection.
Tankgard™ SG is designed for applications where STP tank waterproofing, chemical resistance and concrete protection are essential for long-term performance.
| Property | Reported Value |
|---|---|
| Volume solids | 100% |
| Tensile strength | >13 MPa |
| Elongation | >120% |
| Tear resistance | >40 N/mm |
| Shore hardness | A80 |
| Hydrostatic water pressure | Passes 5 bar |
| Adhesion to concrete | >2 N/mm² |
| Abrasion resistance | >30 mg |
| Complete curing at 30°C | 3 days |
The tensile and elongation figures are particularly relevant to elastomeric waterproofing. A coating with meaningful elongation can accommodate a degree of substrate movement without behaving like a rigid film.
Concrete is vulnerable to prolonged exposure to moisture and aggressive contaminants. In sewage treatment infrastructure, these conditions can be more demanding than in conventional water-retaining structures, making a suitable waterproofing solution for sewage treatment plants essential for long-term concrete protection.
A sewage treatment plant tank may experience:
This combination creates a waterproofing and concrete protection challenge, rather than a conventional damp proofing requirement.
A coating selected for Sewage Treatment Plant infrastructure therefore needs to provide both barrier protection and mechanical flexibility. Chemical-resistant waterproofing for STP tanks is particularly important where concrete structures face prolonged moisture exposure and aggressive wastewater conditions. Elastomeric polyurethane technology can help address these demands by combining waterproofing properties with flexibility and protective performance.
For sewage treatment plants and wastewater structures, waterproofing and protective coating should be treated as part of asset durability planning.
A well designed polyurethane waterproofing coating can help separate the concrete substrate from aggressive exposure while providing a seamless elastomeric barrier. Tankgard™ SG combines this membrane concept with reported tensile strength, elongation, adhesion, abrasion resistance and hydrostatic pressure performance.
When evaluating the best coating for sewage treatment plant tanks, factors such as chemical exposure, water pressure, abrasion and substrate movement should be considered. Multichem Group’s Tankgard™ SG is a specialist option for projects where sewage treatment plant waterproofing, chemical-resistant coating and elastomeric concrete protection need to work together.
Tankgard™ SG is more than a conventional waterproofing coating. Its 100% solids polyurethane chemistry makes it a specialised polyurethane waterproofing coating with elastomeric behaviour, tensile and elongation properties, adhesion to concrete, abrasion resistance, and hydrostatic pressure performance for demanding waterproofing and protective coating environments.
Engineers, architects, consultants, and contractors should select a membrane based on the specific conditions it will face in service, including wastewater exposure, chemical resistance, temperature fluctuations, substrate movement, abrasion, and hydrostatic pressure.
That performance based approach is what turns a waterproofing material selection into a durable infrastructure protection strategy.
Tankgard™ SG is a two component, solvent free, polyurethane based elastomeric waterproofing and protective coating designed for applications including Sewage Treatment Plant tanks, sewage treatment plants, water bodies and selected aggressive industrial environments.
Yes. Sewage Treatment Plant tanks and sewage treatment plants are specifically identified among its uses. Its elastomeric membrane, water resistance characteristics and chemical and abrasion resistant properties are relevant to demanding wastewater environments.
Tankgard™ SG is an elastomeric polyurethane membrane with elongation exceeding 120%. This flexibility is relevant where substrates experience thermal or other movement. It should not, however, be treated as a replacement for structural crack repair or correctly designed movement joint detailing.
Tankgard™ SG: Sewage Treatment Plant Grade Polyurethane waterproofing coating Sewage treatment plants, wastewater tanks and other water retaining structures are exposed to a combination of moisture, chemical attack, abrasion and continuous thermal or structural movement. For these environments, waterproofing is not simply about stopping water from passing through concrete. The
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