What is Sulfonated Melamine Formaldehyde?
Sulfonated Melamine Formaldehyde, it also called Melamine-based Superplasticizer/high range water reducer, it is short for SMF. is a type of additive used in the cement to enhance workability and reduce water consumption during concrete mixing.
Sulfonated Melamine Formaldehyde belongs to the synthetic polymer type of high-range water reducer (High-Range Water Reducer, HRWR) or superplasticizer, and is one of the representative products of the second-generation high-range water reducers.
the technical performance of Sulfonated Melamine Formaldehyde
The advantages of Sulfonated Melamine Formaldehyde
High water Reducing Rate
The water reduction rate is usually between 20% and 30%, which can significantly reduce the water-cement ratio.
high Early Strength
Sulfonated Melamine Formaldehyde can significantly increase the 1-day and 3-day compressive strength of concrete, which is particularly beneficial for accelerating construction progress and facilitating the rapid demolding of prefabricated components.
Low air content
Sulfonated Melamine Formaldehyde is a non-air-entraining type of water reducer. The introduced air content is extremely low (usually < 2%), and it will not cause a significant decrease in strength due to excessive air content.
excellent concrete Surface apperance
Sulfonated Melamine Formaldehyde can produce a very dense, smooth and bubble-free concrete surface with excellent glossiness, making it an ideal choice for decorating plain concrete.
Typical application fields of Sulfonated Melamine Formaldehyde(SMF)
Due to its unique properties, Sulfonated Melamine Formaldehyde SMF still has irreplaceable advantages in the following areas:
· Prefabricated concrete components: Make full use of their early strength and good surface gloss characteristics, and use them for the production of prefabricated wall panels, pipe piles, sleepers, etc.
· High-strength concrete (HSC): Prepare high-strength concrete of grade C60 or above.
· Self-compacting concrete (SCC): Can be used to prepare self-compacting concrete with extremely high fluidity and good anti-separation properties.
· Decorative concrete: Such as artificial stone, artistic flooring, and exposed concrete, for occasions that pursue high-end surface effects.
· Fire-resistant concrete and grouting materials: Special materials with low water demand and high early strength are required.
Compared with other water-reducing agents
| products |
 |
 |
 |
| products Name | Sulfonated Melamine Formaldehyde(SMF) | Sodium Naphthalene Sulfonate(SNF) | Polycarboxylate Superplasticizer(PCE) |
| water reducing rate(%) | High(20-30%) | High(20-25%) | Extremely high(25-40%) |
| slump retention | poor | poor | excellent |
| early strength | quite high | high | adjustable |
| surface quality | excellent | better | good |
| environmental protection property | Normal | bad | Green chemicals |
| cost | medium | low | high |
Shanxi Jiankai Fine Chemicals Co., Ltd. is a professional manufacturer of building materials additives integrating production, sales, research and development and technical service. The company mainly produces high-performance polycarboxylate superplasticizer water reducer, sodium naphthalene sulfonate formaldehyde water reducer, melamine-based water reducer, gypsum retarder and defoamer as its core products, forming a complete one-stop procurement supply chain. Warmly welcome your inquiry at anytime.
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Sulfonated Melamine Formaldehyde (SMF) is a highly effective water reducing agent with outstanding performance. It holds a significant position in fields that emphasize ultra-high early strength and extreme surface appearance (such as prefabricated components and decorative concrete). Although it is inferior to the latest polycarboxylate-based water reducing agents (PCE) in terms of slump retention and environmental friendliness, its mature technology and stable performance still make it one of the indispensable key materials in modern concrete technology.
If you would like to know the technical specifications, usage methods and prices of specific products, please feel free to contact our technical support team.
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