Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Product Type
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
- Advantages
- Load bearing for support of arises under heavy wheel load.
- Good resistance to chemicals and hydrocarbon fuels.
- Excellent adhesion without primer to dry clean concrete.
- Pouring grade ensures ease of placing.
- Suitable for use in wide joints.
- Self leveling to produce uniform and neat joints.
Applications & Uses
- Markets
- Applications
- Uses
For sealing internal floor joints subject to heavy industrial use in factories, food processing areas, warehouses and maintenance facilities. Particularly suitable for sawn joints in long strip flooring and other large internal areas.
- Application Instructions
Joint Preparation - Joint surfaces must be clean, dry and free from laitence dust or any other foreign matter. All dry residual dust from joint cut- ting operations should be completely removed using a rotary power brush, dry abrasive blasting or other approved means. Blow all joints clean using dry oil free compressed air. When required foam backing cord should be a firm closed cell grade. Debonding tape should be used in the base of all joints except where foam backing cord is used. Where a neat finish is required, masking tape should be applied down each side of the joint prior to the start of the sealant works, it should be removed immediately after the sealant works are complete.
Priming - Priming is not normally required when using Nitoseal PU280 in dry, sound, well prepared joints, or joints which have been reformed using a Berger Fosroc resin based repair mortar. Where optimum adhesion is required or where joints may be totally immersed in water, Nitoprime 25 should be used.
Mixing - The components of Nitoseal PU280 are supplied in the correct mixing ratio. Add the entire contents of the color pack and hardener component into the base container and mix together thoroughly for three minutes using a slow speed drill (300 to 500 rpm) fitted with a mixing paddle. Ensure any settlement is thoroughly dispersed. The sides of the container should then be scraped down to ensure that any unmixed components do not remain. Mixing should then continue for a further 2 minutes.
Application - The mixed Nitoseal PU280 can be poured directly from the mixing container by compressing the sides to form a pouring lip. Pour into the prepared joint to the required level, should the joint width prohibit direct pouring from the container, the mixed material can be poured into a Sealant gun and applied to the joint. It may be necessary after a few minutes to top up the level of the sealant after it has fl owed into all joint irregularities. Finally, strip of any masking tape that may have been used.
Cleaning - Clean tools immediately after use with Nitofl or Sol. Clean hands with a proprietary hand cleaner.
- Estimating
Supply
- Nitoseal PU280 - 4.0 liter pack
- Nitoprime 25 - 1.0 and 4.0 liter pack
Guide to Sealant Quantities
Number of liters required = (Joint width (mm) x Sealant depth (mm) x Joint length (m)) / 1000
- Limitations
Nitoseal PU280 is not intended for use in vertical joints, for further advise contact the Technical Department.
Properties
- Typical Properties
- Chemical Resistance
Good resistance to most common mineral acids, alkalis, petroleum based fuels and steam.
| Value | Units | Test Method / Conditions | |
| Application Temperature | 5 - 45 | °C | — |
| Coverage (Nitoprime 25, 10mm joint depth) | 100.0 | Lm | — |
| Cure Time (Full, 35°C) | 3.0 | days | — |
| Cure Time (Full, 35°C) | 2.0 | days | — |
| Cure Time (Initial, 20°C) | 24.0 | hours | — |
| Cure Time (Initial, 20°C) | 12.0 | hours | — |
| Flash Point (Nitoprime 25) | 29.0 | °C | — |
| Flash Point (Nitroflor Sol) | 33.0 | °C | — |
| Hardness | 60 - 80 | Shore A | — |
| Movement Accommodation Factor | 0.1 | % | — |
| Service Temperature | -10 - 70 | °C | — |
| Specific Gravity | 1.31 | — | — |
Regulatory & Compliance
- Certifications & Compliance
Technical Details & Test Data
- Design Criteria
Joints should be designed so that total movement due to con- crete shrinkage and thermal change does not exceed the 10% movement accommodation factor related to the joint width. We would recommend that joints to be sealed with Nitoseal PU280 are left till the fi nal stages of construction when internal temperatures have stabilized and initial concrete shrinkage has taken place. The bulk of concrete shrinkage will take place within the first 28 days therefore sealant works should be delayed for this minimum period.
Joint Width (mm) Sealant Depth (mm) 6 - 12 Equal to width 12 - 25 12 - 20 Over 25 1/2 - 3/4 width - Specification
Joints shall be sealed where designated using Nitoseal PU280, epoxy urethane sealant manufactured and supplied by Berger Fosroc. The sealant shall be applied strictly in accordance with the manufacturer’s current technical data sheet.
Safety & Health
- Precautions
Health & Safety
Some people are sensitive to epoxy resins so gloves and a barrier cream are recommended to be worn when handling these products. If contact with the resin occurs it must be moved before it hardens followed by washing with soap and water do not use solvent. In the event of contact with the eyes irrigate liberally with clean cold water and seek medical advise.
Fire
Nitoflor Sol and Nitoprime 25 are flammable. Keep away from sources of ignition. No smoking. In the event of fire, extinguish with CO2 or foam. Do not use a water jet.
Packaging & Availability
- Colors
Nitoseal® PU280 is available in a range of attractive colors with a separate color pack providing visual mixing control.
Storage & Handling
- Storage
12 months in original containers stored in cool dry conditions i.e. not exceeding 25°C. Storage above this temperature may reduce storage life.