White Powder High Range Water Reducer SMF Sulphonated Melamine Formaldehyde

Product Description

Sulphonated Melamine Formaldehyde (SMF)

Sulphonated Melamine Formaldehyde (SMF) is a synthetic polymer-based superplasticizer that significantly improves concrete workability while maintaining excellent strength development. As a 3rd-generation melamine-based admixture, it provides superior water reduction (15-25%) without compromising setting characteristics.

Sulphonated Melamine Formaldehyde (SMF) is a synthetic polymer-based high-range water reducer belonging to the melamine resin superplasticizer family. This third-generation concrete admixture is produced through controlled sulfonation of melamine-formaldehyde condensates, creating a highly effective anionic polymer with superior dispersing properties.

Recommended Dosage
Normal concrete: 0.5-1.2% by cement weight
High-performance concrete: 1.0-1.8%
Precast concrete: 1.2-2.0%

Molecular Structure & Mechanism
The SMF molecule features:

Hydrophilic sulfonate groups for electrostatic repulsion
Hydrophobic melamine backbone for steric stabilization
Controlled polymer chain length (MW 15,000-30,000 Da)

Technical specification

Appearance	Light gray or white powder
Solid Content %	97±2
Moisture%	4%
Bulk Density(kg/m³)	700±50
PH Value(50% aqueous solution,20℃)	7-9
Na2SO4(%)	≤5
Fluidity of Cement paste(mm)	≥220
Na2SO4(%)	≤5
Fluidity of Cement paste(mm)	≥220
Water-reducing of mortar ratio (%)	≥14
Fineness (pass through 0.150mm standard sieve)(%)	≥98

Water reduction rate: 18-25%
Slump retention: >90 minutes (initial slump 200±20mm)
Air content: <2.5%
Compatibility: Works with all cement types (OPC, PPC, slag, fly ash)

Properties

Concrete Property Enhancement

√ Workability - Achieves 200-250mm slump at low w/c ratios
√  Strength - 20-35% early strength increase (1-day)
√ Durability - Reduces permeability by 40-60%
√ Cohesion - Eliminates segregation and bleeding
√ Finishability - Produces smooth, dense surfaces

Process Benefits
√ Extended workable time (90-150 minutes)
√  Reduced stickiness for easier pumping
√  Lower heat of hydration
√  Minimal impact on setting time

Applications

High-strength concrete (50-100MPa)

Self-Consolidating Concrete (SCC)

Enables w/c ratios as low as 0.25-0.35
Achieves 1-day compressive strength of 30-40MPa
Critical for:
• High-rise building cores (70+ floors)
• Long-span bridge girders
• Nuclear containment structures
Typical dosage: 1.8-2.5% by cement weight

Maintains 650-750mm slump flow without segregation
Provides viscosity-modifying effect (V-funnel time 8-12s)
Essential for:
• Complex reinforced structures
• Architectural concrete with tight tolerances
• Underground diaphragm walls
Special formulation with:
• Extended workability (4-6 hours)
• Anti-bleeding agents

Precast/Prestressed Elements

Shotcrete Applications

Delivers:
• 20% faster formwork turnover
• Demolding strength ≥15MPa at 12-16 hours
• Superior surface finish (Ra <2μm)
Applications:
• Hollow-core slabs
• Railway sleepers
• Architectural cladding panels
Incorporates:
• Early-strength boosters
• Non-stick properties

Reduces rebound by 35-50% compared to conventional mixes
Enables:
• Single-pass thickness up to 150mm
• Instant adhesion to vertical surfaces
Critical for:
• Tunnel linings (including TBM applications)
• Slope stabilization
• Mine shaft support
Special features:
• Anti-washout properties
• Set acceleration compatibility

Decorative Concrete

Repair Mortars

Produces:
• Mirror-like finishes (optical grade surfaces)
• Consistent color uniformity
• Sharp pattern definition
Used in:
• Stamped concrete
• Polished floors (up to 3000-grit finish)
• Exposed aggregate surfaces
Formulated with:
• Color stabilizers
• Reduced bubble formation

Provides:
• 40-60% higher bond strength
• 0.3-0.5mm/m restrained shrinkage
• Non-corrosive properties
Applications:
• Bridge deck overlays
• Marine structure repairs
• Industrial floor restoration
Enhanced with:
• Flexural strength modifiers
• Crack-bridging polymers

Company Profile

Shenyang Xingzhenghe Chemical Co., Ltd.

Founded in 2009, Shenyang Xingzhenghe Chemical Co., Ltd. has evolved into a trusted provider in the fine chemicals sector, focusing on the R&D and distribution of high-performance chemical solutions. Headquartered in Shenyang — a strategic industrial hub in Northeast China — we operate under strict quality-assurance systems and embed sustainable practices across our value chain.

To ensure agile supply and responsive service, we maintain regional branches in Tianjin, Qingdao, Shanghai, and Guangzhou, each supported by modern logistics facilities. Our products are supplied to a growing international client base, with established export channels to key markets including:

• East Asia: South Korea, Japan

• Southeast Asia (Vietnam, Indonesia, Thailand, Philippines, Singapore, Myanmar, etc.)

• Middle East (Saudi Arabia, UAE, Türkiye,etc)

• North America (USA, Canada)

We deliver comprehensive technical and commercial support through:

• Dedicated application-testing laboratories
• On-site process-optimization advisory
• Tailored formulation development aligned with regional specifications and end-use requirements

Committed to partnership-driven growth, we collaborate closely with clients to address industry-specific challenges and deliver consistent, high-value chemical solutions.