SIKA · AUTHORIZED PROJECT DISTRIBUTOR · SPACE ARC ENGINEERING
Sika ViscoFlow®-5263 NS
PCE superplasticizer for extended slump life and constant flow
Product Overview
Sika ViscoFlow®-5263 NS is a PCE-based superplasticizer designed to deliver significantly enhanced slump-flow retention without additional retardation. By improving cement dispersion it keeps slump flow constant over extended periods, allowing smooth, uninterrupted concreting even on long pours. It improves rheology, supports strength development, reduces drying shrinkage and enhances durability, and performs across a wide range of water-cement ratios in both hot and cold conditions with long transport times. Workability duration can be tailored to the job without compromising early strength. Dosed between 0.2% and 2.0% of cementitious content, it complies with IS 9103 and ASTM C494. It serves ready-mix producers and contractors needing dependable slump life. Space Arc Engineering supplies Sika ViscoFlow®-5263 NS across India as an authorized Sika distributor with technical support.
Features & Benefits
- Maintains constant slump flow for smooth, continuous concreting
- Extends workability without adding set-delaying retardation
- Improves cement dispersion and concrete rheology
- Supports early strength while keeping concrete workable
- Reduces drying shrinkage and improves durability
- Performs across wide water-cement ratios and temperatures
Technical Highlights
| Coverage | Recommended dosage is 0.2% to 2.0% by weight of cementitious material, with higher doses on consultant approval. |
| Strength | Supports strength development without compromising early strength; refer to TDS for figures. |
| Performance | Provides constant slump flow and enhanced retention without additional retardation. |
| Application Conditions | Store and use between +10°C and +40°C; protect from direct sunlight and frost. |
| Packaging | Light brown liquid; density about 1.11 kg/l at 25°C, supplied in 255 kg drums or bulk. |
Applications
- Ready-mix concrete dispatched over long distances
- Continuous large-volume pours such as rafts and mat foundations
- Hot and cold weather concreting with extended transit
- Infrastructure and commercial works needing constant flow
- Pumped concrete where consistent slump life is essential
SPACE ARC ENGINEERING · AUTHORIZED DISTRIBUTOR
Product image & sample available on request
Technical Data
| Type | PCE superplasticizer / slump retainer |
| Base | Modified polycarboxylate solution |
| Dosage | 0.2-2.0% of cementitious |
| Density | ~1.11 kg/l at 25°C |
| Standard | IS 9103, ASTM C494 |
| Pack size | 255 kg drum / bulk |
Datasheet & Documents
Request the Technical Data Sheet, method statement and safety data sheet from Space Arc Engineering.
Request Quote / Availability
+91 9999155255
+91 7290089007
info@space-arc.com
Frequently Asked Questions
What is Sika ViscoFlow®-5263 NS used for?
It is a PCE superplasticizer that maintains constant slump flow and enhanced workability retention without extra retardation, enabling smooth concreting on long pours and across high and low water-cement ratios.
What dosage of ViscoFlow®-5263 NS should be used?
The recommended range is 0.2% to 2.0% by weight of cementitious material, with higher dosages possible on client or consultant approval. Optimise through trial mixes and refer to the TDS.
Does it delay setting like a retarder?
No. It is formulated to extend slump life without additional retardation, so workability is maintained without the set delay associated with conventional retarders, and early strength is not compromised.
What are its key properties and standards?
It is a light brown liquid with a density of about 1.11 kg/l at 25°C and pH of at least 6, complying with IS 9103 and ASTM C494. Refer to the current TDS for full technical data.
Who supplies Sika ViscoFlow®-5263 NS in India?
Space Arc Engineering is an authorized Sika distributor supplying Sika ViscoFlow®-5263 NS across India. Reach +91 9999155255 or info@space-arc.com for pricing and mix-design support.
Related Products
- Sika ViscoFlow®-50 H — PCE superplasticizer for long workability retention
- Sika ViscoFlow®-6262 NS — PCE superplasticizer for long slump retention
- Sika® ViscoCrete®-5227 NS — High-performance PCE superplasticizer for concrete
- SikaPlast®-5201 NS — Mid-range PCE plasticizer for ready-mix concrete
Buy Sika ViscoFlow®-5263 NS — Sika Distributor in India
Space Arc Engineering is an Authorized Project Distributor supplying Sika products for infrastructure, industrial, commercial and residential projects across India.
+91 9999155255 | +91 7290089007 | info@space-arc.com
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