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Sulphonated Melamine Formaldehyde (SMF)
Product Name: Sulphonated Melamine Formaldehyde (SMF)
Type: SM-P /SM-L
Package: 25kg/bag, 250kg/drum

Sulphonated Melamine Formaldehyde 

■ Description

SMF is a soluble melamine formaldehyde resin based superplasticizer. It has no air-entraining. A chloride free admixture based on melamine formaldehyde, formulated for the production of rheoplastic concrete. Available as a liquid, or in powder form which must be dissolved in water prior to use.

A rheoplastic concrete is a fluid, but cohesive mix with a slump value of at least 200mm. It is virtually self compacting, but at the same time free from segregation and with a water/cement ratio as a no-slump concrete with an admixture.

■ Standards Compliance
SMF complies with the requirements of the following standards: ASTM C 494, Type F.

■ Typical Properties



SM-P (Powder)

SM-L (42%)

Visual Appearance

White Powder

Colorless transparent or pale yellow liquid

Sodium sulfate content (%) ≤



Solid Content (%)



Chloride Content (%)


pH Value


Moisture(%)  <



Cement Paste Flow, (mm)   ≥



Completely soluble

■ Application

1. SMF could be used to make self-leveling flooring materials and grout for the base of casting equipment.

2. It could be used to make high strength gypsum and gypsum products.

3. It is suitable to make ready mixed concrete, pumping concrete, flowing concrete, high strength and high performance concrete, self-compact concrete and high strength mortar.

4. It could also be used to make refractory concrete, steam curing concrete, plain concrete, decorative concrete and pigmented concrete.

5. It could be applied as super dispersant for oil-well cement in casting and strengthening.

6. It is one of major components of water proofing materials for improving impermeability of concrete or mortar. It also can be used as a component with admixtures like expanding admixtures to produce structural self-waterproofing concrete.

7.Precast concrete

8.Concrete with white cement

■ Features and Benefits
1. It is nontoxic, non-corrosive and nonflammable.

2. It increases flooring surface's strength, abrasive resistance without any crack, and has key effect on color duration.

3. It has early strength without retarding. Given the same amount of cement and slump requirement, it can increase the concrete strength by 40~100%, 30%~70%, 30%~60% on day 1, 7 and 28 respectively.

4. It could improve the viscosity of gypsum slurry, enhance the brightness, durability and abrasive resistance of the surface of gypsum products.

5. It has great compatibility to purified aluminate cements.

6. It has high water reducing rate over 20% and is alkalescent. It may control concrete bleeding ratio and enhance its strength, especially decrease the shrinkage of concrete.

7. It has no delayed coagulation, low sodium sulfate content, low chloride content and has remarkable compatibility with various cementitious materials and other admixtures.

8. After being dissolved into liquid, it has no precipitation at low temperature, which is favorable for winter construction.

■ Technical Support and Services

MUHU offers one-stop type services and turn-key project.

MUHU is well known in admixture manufacturing researching and developing. We have excellent professional technical team, providing our customers with on-site instruction on concrete admixture compounding techniques. Meanwhile, we also provide long-term training on admixture compounding techniques. In order to ensure that customers have no worries, we supply our customers who have purchased our equipment with various technical supports, including training on admixture compounding techniques, know-how transfer, and technical cooperation, etc. 

■ Instructions for Use
SMF must preferably be added in the mixing water and in case of ready mixed concrete where the product can be added on fresh concrete and in a mixing truck, it is necessary to mix at a high speed for about 6 – 8 minutes.

■ Dosage

The optimum dosage of SM to meet specific requirements should always be determined by trials using the materials and conditions that will be experienced in use.



SM-P (Powder)

SM-L (40%)

dosage normally ranges

0.4 to 1.2 kgs/100 kg of cementitious material

3.0 to 5.0 kgs/100 kg of cementitious material

■ Setting
SMF affords excellent control over initial and final setting times. Setting times of concrete mixes are related to cement type, mix design and ambient temperature.

■ Compatibility
SMF should not be used in conjunction with any other admixture unless prior approval is obtained from MUHU.

■ Packaging & Storage
For powder: Woven fabric bag with plastic liner. Net weight:25kg.
For Liquid: SM-L is available in 1000 liters per. IBC Tank or flexitank. For site installations, deliveries will be made in bulk to site storage tanks.
SMF has a minimum shelf life of 12 months provided it is stored under cover, out of direct sunlight.

■ Health & Safety Precautions
SMF does not fall into the hazard classifications of current regulations. However, it should not be swallowed or allowed to come into contact with skin and eyes. Suitable protective gloves and goggles should be worn. Splashes on the skin should be removed with water. In case of contact with eyes rinse immediately with plenty of water and seek medical advice. If swallowed seek medical attention immediately do not induce vomiting.

For further information refer the Material Safety Data Sheet available for this product.

■ Important note
MUHU endeavors to ensure that the technical information contained herein is true, accurate and represents our best knowledge and experience. No warranty is given or implied, as MUHU has no control over the conditions of use and the competence of any labor involved in the application.

As all MUHU technical data sheets are updated on a regular basis it is the customer’s responsibility to check that the product is suitable for the intended application, and that the actual conditions of use are in accordance with those recommended.


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