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Sika Plast 518 PK

Sika Plast® 518 PK - PCE-Based Water-Reducing Superplasticiser for Concrete
Sika Plast 518 PK
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Sika Plast® 518 PK — PCE-Based Water-Reducing Superplasticiser for Concrete.

Sika Plast® 518 PK is a polycarboxylate (PCE) based superplasticiser and water-reducing admixture for concrete, developed for ready-mixed concrete to give extended slump retention and high strength development. It provides substantial workability improvement without added water and is suitable for hot and tropical climates.

Sika Plast® 518 PK - PCE-Based Water-Reducing Superplasticiser for Concrete

Sika Plast® 518 PK

PCE-Based Water-Reducing Superplasticiser for Concrete

Category:Concrete
Brand:Sika
PCE TechnologyPolycarboxylate-based for high dispersion and flow.
Water ReductionSubstantial water reduction without added water.
Extended Slump RetentionMaintains workability for longer periods.
Chloride FreeSuitable for reinforced and prestressed concrete.
High StrengthHigher strength development and reduced permeability.
Pozzolan CompatibleWorks with microsilica, GGBS and fly ash.
Download Sika Plast® 518 PK Technical Data Sheet (PDF)Request MSDS
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Delivery across Pakistan, including major cities. Contact our team for lead times to your location.

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Key Benefits

  • PCE Technology
  • Water Reduction
  • Extended Slump Retention
  • Chloride Free
  • High Strength
  • Pozzolan Compatible
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Sika Plast® 518 PK – PCE-Based Water-Reducing Superplasticiser for Concrete

Sika Plast® 518 PK is a polycarboxylate (PCE) based superplasticiser and water-reducing admixture for concrete, developed for ready-mixed concrete to give extended slump retention and high strength development. It provides substantial workability improvement without added water and is suitable for hot and tropical climates.

Recommended Uses

  • Ready-mixed concrete
  • High-flow and self-compacting concrete
  • Mixes with microsilica, GGBS and fly ash
  • Reinforced and prestressed concrete
  • Normal to high-grade structural concrete

Technical Information

Verified performance data for Sika Plast® 518 PK, taken directly from the Sika Pakistan Product Data Sheet.

Chemical Base
Organic polymer blend
Packaging
05 ltr jerry can 20 ltr plastic can 200 ltr drum 1000 ltr IBC Bulk supply in tanker is possible on demand
Shelf Life
12 months minimum from production date if stored properly in original unopened packaging
Storage Conditions
Store in a dry area between 5°C and 35°C. Protect from direct sunlight
Appearance / Colour
Brown Liquid Specific gravity ~ 1.18 at 25°C Solid content by weight ~ 37 %
pH Value
~ 5-8 at 25°C
Total Chloride Ion Content
Nil

Source: Sika Pakistan product identity (pak.sika.com / Sika Pakistan). Full numerical specifications: request the latest Sika Pakistan PDS.

Packaging & Storage

Packaging

Drums / IBC / bulk (refer to current packaging / price list)

Storage

Store in undamaged, unopened, original sealed packaging in dry conditions, protected from direct sunlight and frost. Refer to the PDS for exact storage temperature and shelf life.

Application Guide (5 Easy Steps)

01
Determine Dosage

Establish the optimum dosage by trial mixes with the actual materials. Typical dosage ranges are given in the current Sika Pakistan PDS.

02
Dispensing

Add to the concrete with the mixing water, ideally after most of the water; do not add to dry cement or aggregate.

03
Mixing

For optimum water reduction, mix thoroughly (a minimum wet mixing time of about 60 seconds is recommended).

04
Placing

Place the highly workable concrete with reduced compaction effort.

05
Curing

Cure the concrete properly, especially in hot conditions, using Sika Antisol products or moist curing.

Follow the official Sika Technical Data Sheet for full application details.

Frequently Asked Questions

What is Sika Plast® 518 PK?

PCE-Based Water-Reducing Superplasticiser for Concrete. It disperses cement particles to give high water reduction, flow and slump retention.

Is it chloride free?

Yes, SikaPlast PCE superplasticisers do not contain chlorides or steel-corrosion-promoting ingredients, so they are suitable for reinforced and prestressed concrete.

What is the dosage?

Determined by trial mixes; typical ranges are in the current Sika Pakistan PDS.

Is it suitable for pozzolanic mixes?

Yes, it works well in mixes containing microsilica, GGBS and fly ash.

Where are the full technical specifications?

Detailed dosage and density figures are in the current official Sika Pakistan Product Data Sheet, available on request.

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