Description
MASTERKURE 181 is a non-degrading, membrane-forming liquid based on Pliolite® resin suitable for spray application to freshly poured concrete. MASTERKURE 181 is available as a clear opaque liquid and white solar reflective version.
The resultant film retains sufficient moisture in the concrete to ensure full hydration of the cement; essential for optimum strength development. The cured concrete is typically harder and exhibits a dust free surface with a reduced incidence of drying shrinkage cracks.
Additionally, the membrane acts as a primer system for many subsequent surface finishes that do not rely on penetration for substrate bond. When applied to floors, the MASTERKURE 181 seals and dustproofs the surface, eliminating the primary source of abrasion and enhancing durability.
Typical applications
As a more effective and economical alternative to separate curing and priming/sealing regimes. Suitable for use on all concrete surfaces.
- Surfaces subject to finishing treatments.
- Economical enhancement of concrete flatwork.
- In high-rise construction to eliminate the requirement for water.
Advantages
- Eliminates the need for water.
- Imparts a harder dust free surface.
- Does not support the growth of bacteria.
- Non degrading, acts as a primer system.
- Minimal delay for overcoating etc.
- Abrasion resistant floors.
- High curing efficiency.
- Reduced labour costs.
- Reduces chloride penetration.
Packaging
MASTERKURE 181 is available in 210 litre drums.
Typical properties*
| Appearance: |
Clear/Opaque liquid |
| Specific gravity: Clear |
0.82 at 20°C |
| White |
0.89 at 20°C |
| Flashpoint: |
30°C |
| Finished film appearance: |
Clear, tackfree, water repellent film |
| Water Retention ASTM C156: |
Pass |
| Drying Time ASTM C309: |
45 mins at 20°C |
Standards
ASTM C309 Type 1 Class B
AASHTO M-148
ASTM-C-944 Abrasion Resistance
Directions for use
The compound should be spray applied as evenly as possible to the freshly placed concrete.
For horizontal surfaces the MASTERKURE 181 should be applied as soon as the initial surface sheen has disappeared from the concrete face. In the case of formed concrete, the product should be applied immediately on removal of the formwork.
Coverage
The recommended rate of application is 4.5 to 5.5 square metres per litre. This corresponds to that at which MASTERKURE 181 has been tested, and at which it attains the claimed degree of curing efficiency. In favourable conditions such as shaded interior surfaces, adequate curing can be achieved with extended coverage rates.
When using MASTERKURE 181 for floor areas where maximum chemical and wear resistance is required, it is recommended that a further coat be applied after 24 hours.
Subsequent surface finishes
The Pliolite® resin in MASTERKURE 181 ensure that bond is maintained with adhesives used for installing tiles, and other floor coverings. MASTERKURE 181 will act as a primer for paint systems and will enable most surface treatments to progress with minimal delay.
Typical surface treatments that will bond to surfaces with MASTERKURE 181 are:
- Water based emulsion paints containing PVA, PVC, acrylic co-polymers or Pliolite®.
- Tile adhesives based on the above polymers.
- Bituminous emulsions and solutions.
- Thin section polymer modified cementitious systems.
- Polyurethane resin systems.
- Polysulphide systems.
- Epoxy resin compositions which do not rely on penetration for substrate bond.
For further information regarding compatibility of MASTERKURE 181, contact BASF ME's Technical Services Department.
Specification clause
MASTERKURE 181
Where indicated, concrete shall be cured by application of MASTERKURE 181, curing compound based on Pliolite® resin manufactured by BASF ME or similar approved; to the following specification:
| Specification type: |
ASTM C309: Type 1 Class B |
| |
AASHTO M-148 |
MASTERKURE 181 is to be applied at a coverage rate of 4.5 to 5.5 square metres per litre and strictly in accordance with the manufacturer's instructions.
Storage
Store under cover, out of direct sunlight and protect from extremes of temperature. Failure to comply with the recommended storage conditions may result in premature deterioration of the product or packaging. For specific storage advice consult BASF's Technical Services Department.
Safety precautions
As with all chemical products, care should be taken during use and storage to avoid contact with eyes, mouth, skin and foodstuffs. Treat splashes to eyes and skin immediately. If accidentally ingested, seek medical attention. Reseal containers after use. Use in well ventilated areas and avoid inhalation. For further information refer to the material safety data sheet.
Note
Field service, where provided, does not constitute supervisory responsibility. For additional information contact your local BASF representative.
BASF reserves the right to have the true cause of any difficulty determined by accepted test methods.