Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Product Type
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
- Advantages
- Suitable for forklift truck traffic.
- Suitable for saw cut and perimeter joints.
- Abrasion resistant.
- Withstands vehicular traffic.
- Single component.
- Fast rate of cure.
- Easy to apply at low temperature.
- Can be applied to damp substrates.
- Primer-less for most applications.
- Hard, but flexible sealant; resists picking and vandalism.
Applications & Uses
- Markets
- Applications
- Uses
Nitoseal MS300 is suitable for sealing saw-cut and movement joints in internal floors, and external joints where abrasion resistance is required. It can also be used for external facade
joints where a tougher seal is required.- Factory floors.
- Sports stadia terracing.
- Shopping centers.
- Warehouse and distribution depots.
- Concrete hardstanding areas.
- Prisons
- Application Instructions
Preparation - 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. Remove all debris. The joint surfaces must be dry, clean and frost free. Remove all contaminants by rigorous wire brushing, grinding or grit blasting. 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. Note: The use of a bond breaker is not required in expansion joints containing Hydrocell XL cellular polyethylene expansion joint filler. 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 priming/sealing and remove immediately after tooling is completed.
Priming - Fosroc Primer MS2 is required for joints that are to be intermittently or permanently immersed, or where the substrate is likely to be saturated (for example, externally). When using a 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 MS300 should be applied between 30 minutes and 4 hours after priming. 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. Do not split packs of Fosroc Primer MS2.
Application and Finishing - Cut end off sachet and place in Fosroc GX Gun. Fit nozzle and cut at 45o to a suitable size. Extrude the sealant firmly into the joint. Tool to the required finish (flush or recessed) within 5 minutes of application to ensure good contact between the sealant and the substrate.
Cleaning - Clean tools immediately after use with Fosroc Equipment Cleaner.
- Estimating
Guide to Sealant and Primer Quantities
Joint size mm Liters/meter run Meters/600ml sachet 10 x 6 0.06 10 12 x 10 0.144 4.17 20 x 20 0.4 1.5 25 x 20 0.5 1.2 30 x 20 0.6 1 40 x 25 1 0.6 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
- Do not apply at temperatures below 5°C.
- Not suitable for contact with bituminous materials.
- Whilst Nitoseal MS 300 has excellent adhesion to many types of residual sealant its use should not be considered a substitute for a good standard of joint preparation.
- In large joints ensure sealant is sufficiently cured before trafficking. In 40 mm joints this could be up to 10 days.
- Flush finished joints should not be used in locations where significant thermal movement may occur during service (e.g. external locations, particuarly areas subject to direct sunlight) as this can result in the sealant bulging above the joint surface when the joints contract.
Properties
- Physical Form
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Application Temperature | 5 - 50 | °C | - |
| BAAQMD Reg 8 Rule 51 | Passes | - | - |
| Cure Rate (20°C, 50% RH, 24 hours) | 3.0 | mm | - |
| Cure Rate (20°C, 50% RH, 48 hours) | 6.0 | mm | - |
| Cure Rate (20°C, 50% RH, 72 hours) | 8.0 | mm | - |
| E-Modulus | min. 0.8 | N/mm2 | ISO 8339 |
| Flash Point | min. 65 | °C | - |
| LEED EQc4.1 | Passes | - | - |
| Modulus | High | - | - |
| Movement Accommodation Factor (Butt Joints) | 25.0 | % | - |
| Movement Accommodation Factor (Lap Joints) | 50.0 | % | - |
| SCAQMD Rule 1168 | Passes | - | - |
| Service Temperature | -20 - 70 | °C | - |
| Skinning Time (Depending on Ambient Conditions) | max. 2 | hours | - |
| Trafficking Time (20°C, Heavy Traffic) | 4.0 | days | - |
| Trafficking Time (20°C, Light Traffic) | 24.0 | hours | - |
| Hardness (20°C) | 45.0 | Shore A | - |
| UV Resistance | Excellent | - | - |
Regulatory & Compliance
- Certifications & Compliance
- Standard Compliance
- ISO11600 Type F 25HM: Classification of sealants for building construction.
- ASTM C920 Type S, Grade NS, Class 25.
- ASTM D2203-93: Standard test method for staining.
- BSEN 140-3:1995: Acoustics measurement of sound insulation in buildings.
Packaging & Availability
- Packaging Type
- Colors
Gray (special colors available on request).
- Packaging
Nitoseal MS300 - 600 ml sachets. 10 no. 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 humidity, the shelf life may be significantly reduced.