Sika Plast 518 PK | MCT CHEMICALS | SIKA PAKISTAN

Sikament®-518 PK Description (Paraphrased)

Sikament®-518 PK is a highly effective water-reducing agent and superplasticizer designed for producing high-quality, free-flowing concrete in hot climates. Its dual-action formulation provides excellent slump retention over extended periods, while ensuring high ultimate strengths.

Applications
Sikament®-518 PK is ideal for situations where high-quality concrete is required, particularly in challenging placing conditions and climates.

Key Features and Benefits
Sikament®-518 PK offers the following advantages:

• As a Superplasticizer:
  • Significantly enhances workability without increasing water content or causing segregation.
  • Maintains slump for an extended period.
  • Does not negatively affect ultimate strength.
• As a Water Reducer:
  • Improves ultimate strengths.
  • Reduces water content by more than 20%.
  • Particularly suitable for hot climates.
  • Prevents excessive air entrainment.
  • No adverse effect on shrinkage.
  • Enhances surface finish.
  • Increases water-tightness.

Approvals and Standards
Sikament®-518 PK meets ASTM C494, Type G requirements.

Product Information

• Chemical Composition: Organic polymer blend
• Packaging:
  • 5-litre jerry can
  • 20-litre plastic can
  • 200-litre drum
  • 1000-litre IBC
  • Bulk supply via tanker available on request
• Shelf Life: Minimum of 12 months from the production date when stored properly in unopened packaging.
• Storage Conditions: Keep in a dry area at temperatures between 5°C and 35°C. Protect from direct sunlight.
• Appearance: Brown liquid
• Specific Gravity: ~1.18 at 25°C
• Solid Content: ~37% by weight
• pH Value: ~5-8 at 25°C
• Chloride Ion Content: Nil

Application Guidelines

• Recommended Dosage: 0.8% to 3.0% by weight of cement. Trial mixes are recommended to determine the precise dosage.
• Dispensing: Sikament®-518 PK can be added directly to freshly mixed concrete or to the mixing water before it is combined with aggregates. If added to freshly mixed concrete, further mixing should be done for at least one minute per cubic meter.
• Compatibility: Sikament®-518 PK is compatible with the following Sika products:
  • SikaPump
  • Sika FerroGard-901
  • SikaFume
    It is also compatible with sulfate-resistant cement. However, pre-trials are recommended when combining with these products. For more details, please consult Sika’s Technical Services Department.