Knowde Enhanced TDS
Identification & Functionality
- Product Type
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- Ready-to-Use Product Features
- Advantages
- Recommended for use in contact with potable water.
- Meets key international standards.
- Resistant to aerobic and anaerobic bacteriological attack.
- Exhibits excellent water resistance.
- Excellent resistance to dilute acids and alkalis.
- Cures to a tough, elastic rubber seal.
- Accommodates continuous and pronounced cyclic movement.
- High resistance to aging, reduces physical damage due to climatic extremes.
- Single component yet fast rate of cure.
- Easy to apply at low temperature.
- Can be applied to damp substrates.
- Isocyanate free technology.
Applications & Uses
- Applications
- Uses
Nitoseal MS600 is suitable for sealing movement joints in buildings and civil engineering structures including joints that will be subject to intermittent or permanent immersion.
Typical applications include:
- Potable water tanks
- Reservoirs
- Sewage tanks
- Sea walls
- Basements
- Subways
- Parapets
- Bridges
- Superstructures
- Application Instructions
Preparation - Joint surfaces must be clean and free from frost. Remove all dirt, laitance, loose material and foreign matter. Remove all rust, scale and protective lacquers from metal surfaces. Removal can be achieved by rigorous wire brushing, grinding or grit blasting. Joints in concrete should preferably be sawn. After sawing, all saw slurry must be flushed away and the joint allowed to dry. When resealing, the existing sealant should be removed from the joint and the arris cleaned back to sound clean concrete. All debris should be removed. Any expansion joint filler must be checked to ensure it is tightly packed and no gaps or voids exist at the base of the sealing slot before positioning a bond breaker. The use of a bond breaker is not required in expansion joints containing cellular polyethylene joint filler such as Hydrocell XL or Expandafoam. For construction or contraction joints a bond breaker tape or back-up strip should be used. Where a particularly neat finish is required, mask the face edges of the joint before sealing and remove immediately after tooling is completed.
Priming - Fosroc Primer MS2 is required for all joints. When using primer, empty the entire contents of the hardener tin into the base tin and replace the base tin lid. Mix thoroughly by shaking for at least 2 minutes. Prime the joint face using a clean, dry brush. Avoid over application of primer causing puddles in the bottom of the joint. Nitoseal MS600 can be applied between 30 minutes and 4 hours after priming. Ensure that the primer has become touch dry before sealing. If a joint is left unsealed for more than 4 hours, the primer should be removed by grit blasting or grinding and the joint re-primed. The pot life of Fosroc Primer MS2 is 4 hours. Do not split packs of Fosroc Primer MS2.
Application and Finishing - Cut the end off the sachet and place in the Fosroc GX gun. Fit the nozzle and cut at 45 degrees at a suitable size for sealing the joint. Extrude the sealant firmly in to the joint. Tool flush within 5 minutes of application to ensure good contact between the sealant and the substrate.
Curing - Prior to immersion in potable water, allow to cure for 21 days at 7°C or above.
Cleaning - Clean tools immediately after use with Fosroc Equipment Cleaner.
- Estimating
Guide to Quantities
Joint Liters per meter run Meter run per 600ml sachet 6 x 10 0.06 10 12 x 10 0.12 5 20 x 20 0.4 1.5 25 x 12 0.3 2 30 x 15 0.45 1.33 Guide to Nitoseal MS2 Primer Coverage
Linear meters per pack of primer Joint depth mm Nitoseal MS2 Primer 0.75 liter pack 10 500 - 600 15 333 - 400 20 250 - 300 25 200 - 240 30 166 - 200 40 125 - 150 50 100 - 120 - Limitations
- Should not be applied at temperatures below 5°C.
- Not suitable for contact with bituminous materials.
- Not suitable for contact with solvents, oil or petrol.
- Whilst Nitoseal MS600 has excellent adhesion to many types of residual sealant, its use should not be considered a substitute for a good standard of joint preparation.
- Nitoseal MS600 must be allowed to cure for 7 days before sea water or sewage immersion. Tidal sea and river wall joints can be sealed provided this condition is met.
Properties
- Physical Form
- Typical Properties
- Chemical Resistance
Resistant to occasional spillage of many chemicals.
- Biological Resistance
Nitoseal MS600 has been evaluated in microbiologically active situations and has been shown to have resistance to aerobic and anaerobic conditions
- Water Immersion
Nitoseal MS600 must be fully cured before permanent immersion in water.
| Value | Units | Test Method / Conditions | |
| Application Temperature | 5 - 50 | °C | - |
| E-Modulus | max. 0.6 | N/mm2 | ISO 8339 |
| Elongation | min. 600 | % | ASTM D412 |
| Hardness (20°C) | 32.0 | Shore A | - |
| Movement Accommodation Factor (Butt Joints) | 25.0 | % | - |
| Movement Accommodation Factor (Lap Joints) | 50.0 | % | - |
| Service Temperature (Dry) | -30 - 80 | °C | - |
| Service Temperature (Wet) | max. 40 | °C | - |
| Skinning Time (Depending on Ambient Conditions) | max. 2 | hours | - |
| UV Resistance | Excellent | - | - |
Regulatory & Compliance
- Certifications & Compliance
- Standard Compliance
- ASTM C920 Type S, Grade NS, Class 25
- IS0 11600 Type F25HM
- British Standard BS 6920 : Part 1:2000
Technical Details & Test Data
- Design Criteria
Nitoseal MS600 should be applied to joints between 5 and 35mm wide. Joints which are expected to experience cyclic movements should be designed to an optimum width : depth ratio of 2:1, subject to the overriding recommended minimum sealant depths set out below: 5mm for metals, glass and other non-porous surfaces; 8mm for all porous surfaces; 20mm for joints subject to hydrostatic pressure.
To ensure that the sealant remains within its stated movement capacity (25% MAF), sealing slot widths should be designed in accordance with the recommendations of BS 6093.1993. The Movement Accommodation Factor is a figure quoted indicating the ability of a sealant to accommodate joint movement throughout the service life of that sealant, expressed as a percentage of the joint width at time of sealing.
To calculate the theoretical minimum joint width knowing the expected maximum working movement of the joint:
W = M (MAF/100) + M
W = Joint width
M = Expected maximum working movement of joint
MAF = Movement Accommodation Factor of that sealant
Packaging & Availability
- Packaging Type
- Colors
Gray, for special colors contact Fosroc for further Information
- Packaging
Nitoseal MS600 – 10 no. x 600ml sachets per box
Fosroc Primer MS2 – 0.75 liter packs
Storage & Handling
- Storage
Shelf life of 12 months if kept in a dry store at 10 - 20°C in original unopened packaging. If stored at high temperatures and / or high humididy, the shelf life may be significantly reduced.