Sulphonated Melamine Formaldehyde SMF Water Reducer Optimized for Shotcrete & Repair Mortars

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.

Payment Options

Payment Options – Flexible & Secure for Global Trade

To support smooth international transactions and meet our clients' diverse preferences, we offer a range of trusted and secure
payment methods:
 1. Telegraphic Transfer (T/T)
 2. Letter of Credit (L/C)
* Irrevocable L/C at sight accepted for large-volume orders
* Ensures payment security for both buyer and seller
* Issued via your local bank to our designated bank
 Note: All transactions are conducted under strict anti-fraud and compliance guidelines. We are happy to recommend the most suitable payment method based on your country, order amount, and credit terms.

Transportation

Ocean Freight

Air Freight

Land Transport

Advantages: Cost-effective; ideal for large-volume, heavy, or bulky goods.
Disadvantages: Longer transit time (typically 15–60 days).
Modes:
* FCL (Full Container Load): Full container used by one shipper; suitable for high-volume cargo.
* LCL (Less than Container Load): Shared container space for smaller shipments.
* RORO (Roll-on/Roll-off): For wheeled or self-propelled cargo such as vehicles and machinery.
Common Cargo: Machinery, large furniture, ores, electronics.

Advantages: Fast (usually 1–5 days); ideal for high-value or time-sensitive cargo.
Disadvantages: Expensive and limited cargo capacity.
Modes:

* Freighter Aircraft: Dedicated cargo planes for bulk air shipments.
* Passenger Belly Cargo: Uses spare space in passenger aircraft.

Common Cargo: Electronics, perishables, urgent samples.

Advantages: Flexible and ideal for regional or short-haul transport; integrates well with sea or air freight.
Disadvantages: Limited by geography and border formalities for international routes.
Modes:
* Trucking: Door-to-door service for domestic or cross-border shipments.
* Rail Freight: High volume and cost-effective; good middle ground between sea and air.
* Example: China-Europe Railway Express for containerized trade between Asia and Europe.
Common Cargo: Consumer goods, auto parts, construction materials.

FAQ

 FAQ – International Shipping for Chemical Products

Q1: What types of chemical products do you ship?
A:
We export a wide range of chemical products including:
* Industrial chemicals (e.g., solvents, additives, intermediates) * Agrochemicals (e.g., pesticides, fertilizers)
* Specialty chemicals (e.g., dyes, surfactants)
* Hazardous materials (DG cargo) classified under IMDG, IATA, or ADR
Please share your product's technical data sheet (TDS/MSDS) for confirmation.
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Q2: Can you ship hazardous/dangerous goods?
A:
Yes. We are licensed to export hazardous chemicals and comply with international regulations such as:
* IMDG Code (for sea freight)
* IATA DGR (for air freight)
We can handle UN certification, dangerous goods declaration, labeling, and packing in accordance with the cargo class (e.g., Class
3 flammable liquids, Class 8 corrosives).
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Q3: What documents are required for chemical exports?
A:
Typical shipping documents include:
* MSDS (Material Safety Data Sheet)
* Certificate of Analysis (COA)
* Packing List & Commercial Invoice
* UN Certificate / Dangerous Goods Declaration (if DG)
* Certificate of Origin (COO)
* Customs clearance documents (CIQ, REACH, etc. as required)
We also support customer-requested documents such as Form E, FTA certificates, or embassy legalization.
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Q4: Do you provide special packaging for chemicals?
A:
Yes. Based on the product's nature and regulatory class, we offer:
* UN-approved drums, IBC tanks, HDPE bottles, or custom containers
* Ventilation and corrosion-resistant inner liners
* Labeling compliant with GHS / DOT / IMDG
Packaging meets international transport standards for chemical safety.
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 FAQ – International Shipping for Chemical Products

Q5: Which shipping methods are suitable for chemical products?
A:
Depends on product type and urgency:
* Ocean Freight: Most common for large volumes (bulk chemicals, containers)
* Air Freight: For urgent or small-batch shipments; must meet IATA DGR compliance
* Rail Freight: Ideal for inland routes to Europe (e.g., via China–Europe Railway)
* Multimodal: For DG cargo with restricted port access
We always ensure the method is approved and certified for the product category.
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Q6: How is chemical cargo classified and labeled?
A:
Chemical cargo is classified according to UN Dangerous Goods Codes, and we label accordingly using:
* UN number and hazard class (e.g., UN 1993 Class 3 Flammable Liquid)
* GHS pictograms and precautionary statements
* Shipping marks (as per IMDG/IATA guidelines)
We ensure full compliance with local and international labeling standards.
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 Q7: Do you provide samples? How are they shipped?
A:
Yes, samples can be provided upon request.
* Non-DG samples: Usually sent via courier (FedEx/DHL)
* DG samples: Shipped via certified air/sea freight with DG handling documents
Please confirm your customs and import regulations before shipment.
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Q8: What Incoterms and payment terms do you offer?
A:
We support:
* EXW, FOB, CFR, CIF, DAP, depending on the destination country
* Payment terms: T/T, L/C, or Online payment
For regular customers, we can negotiate flexible payment options.
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Q9: Do you offer after-sales or technical support?
A:
Yes. Our technical team provides support on:
* Product application guidance
* Compliance consulting (MSDS, labeling)
* Logistic issue resolution
We aim for long-term cooperation, not just one-time deals.