Description
One-Part Engineering Sealant for Immersed Conditions
Fosroc Nitoseal MS600 is a premium one-part hybrid silyl modified polyether sealant designed for movement joints in civil engineering and construction applications subject to intermittent or permanent immersion. It cures to form a highly durable, elastic and water-resistant seal, making it ideal for water-retaining structures, sewage facilities, bridges, basements and other demanding environments.
Specifically developed for immersed conditions, Nitoseal MS600 offers excellent resistance to water, dilute acids, alkalis and bacteriological attack. Its advanced MS polymer technology provides outstanding durability, movement accommodation and weather resistance while remaining easy to apply, even on damp substrates and at lower temperatures.
Key Features & Benefits
- One-part MS polymer sealant
- Suitable for permanent immersion
- Recommended for potable water contact
- Excellent water resistance
- Resistant to aerobic and anaerobic bacteriological attack
- Excellent resistance to dilute acids and alkalis
- Tough, elastic rubber seal after curing
- Accommodates continuous cyclic movement
- High resistance to ageing and weathering
- Fast curing formulation
- Can be applied to damp substrates
- Easy application at low temperatures
- Isocyanate-free technology
- Excellent UV resistance
- Suitable for internal and external use
Suitable Applications
- Potable water tanks
- Reservoirs
- Sewage treatment tanks
- Sea walls
- River walls
- Basements
- Subways
- Bridges
- Parapets
- Civil engineering structures
- Concrete movement joints
- Water-retaining structures
- Infrastructure projects
- Immersed expansion joints
Standards & Certifications
- ASTM C920 Type S, Grade NS, Class 25
- ISO 11600 Type F25HM
- BS 6920 Part 1:2000
- EN 14188-2:2004 Joint Sealants for Concrete Pavements
- LEED EQc4.1 Compliant
- SCAQMD Rule 1168 Pass
- BAAQMD Regulation 8 Rule 51 Pass
Technical Information
- Product Type: Hybrid MS Polymer Sealant
- Colour: Grey
- Movement Accommodation: 25% (butt joints)
- Movement Accommodation: 50% (lap joints)
- Application Temperature: +5°C to +50°C
- Service Temperature (Dry): -30°C to +80°C
- Service Temperature (Wet): Up to +40°C
- Shore A Hardness: 32
- Elongation: >600%
- E-Modulus: >0.6 N/mm²
- Full Immersion Cure: 14 Days
- Tack Free Time: 2–3 Hours
- Packaging: 600ml Foil Sachets
- Box Quantity: 10 Sachets per Box
Frequently Asked Questions
What is Fosroc Nitoseal MS600 used for?
Nitoseal MS600 is designed for sealing movement joints in structures exposed to intermittent or permanent water immersion, including reservoirs, water tanks, sewage plants, bridges and basements.
Is Nitoseal MS600 suitable for potable water tanks?
Yes. It is recommended for use in contact with potable water and complies with BS 6920 Part 1:2000.
Can it be applied to damp substrates?
Yes. Nitoseal MS600 can be applied to damp substrates, making it suitable for difficult site conditions.
How long does it take to cure before immersion?
Full immersion cure is achieved after 14 days. For potable water applications, allow 21 days curing at 7°C or above before immersion.
What movement can the sealant accommodate?
Nitoseal MS600 accommodates 25% movement in butt joints and 50% movement in lap joints.
Is primer required?
Yes. Fosroc Primer MS2 is required for all joints before application.
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