Naphthalene Sulfonate Formaldehyde FND

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Naphthalene Sulfonate Formaldehyde (PNS)
(Na2SO4 ≤18%)

PNS, a high range water reducer with no air entraining component, is also named as Naphthalene Sulfonate Formaldehyde Condensate (NSF), SNF, PNS, etc.. It complies with chemical admixture specifications for concrete: ASTM C 494, Type F; ASTM C 1017.

1. PNS is suitable to make autotrophic concrete, steam curing concrete, steel concrete and prestress concrete, all of which are made mainly of portland cement.
2. PNS is applicable in areas with the daily lowest temperature of 0
and for making concrete which requires high fluidity, high strength or steam curing.
3. PNS can be used to make C80 concrete with slump loss between 50mm and 70mm, or C60 concrete with that between 180mm and 220mm.
4. PNS can be used as a raw material to compound accelerator, retarder, anti-freezing agent and pumping aid to satisfy requirements from different construction projects, techniques, materials and environmental temperatures.
5. PNS is compatible with Portland Cement, Portland Slag Cement, Fly-ash Cement, Portland Pozzolanic Cement, etc.




Visual Appearance

Light Brown Powder

Moisture, %

8.0 max

Fineness (0.315mm remains), %

15.0 max

pH value


Sodium Sulfate Content, %

18.0 max

Chloride Content, %


Surface Tension

68-72 Mn/m

Cement Paste Flow

230mm min

Water Reducing Rate

18% min

Steel-bar Corrosion


Features and Benefits
1. High water reducing rate: over 20%.
2. Saving cement without sacrificing slump retention and strength.
3. Good flowability.
4. Early and post strengthening ability.
5. Great compatibility with various types of cement.
6. Improved Compactness: it develops a better pore structure and makes the concrete more compact. It produces high durable concrete of which the anti-infiltrating index is beyond P18.

Uses and Dosages
It can be added during mix or after mix, while the afterward approach is preferential.
Dosage normally ranges from 0.5% to 1.0% by weight of cementitious material, while the recommended dosage is 0.75%.

It's packed in woven fabric bag with plastic liner. Net weight: 25kg.

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Q:1: 8 cement ceramic particles to find how to set the amount of slope set
1: 8 cement ceramic particles to find slope layer, according to the amount of 1: 8 cement vermiculite with the amount of vermiculite in the calculation (that is, each cubic 1: 8 cement ceramsite, cement 0.175t, ceramic 1.02 cubic). 1: 8 cement ceramsite to find slope layer cover roof insulation layer quota, and then adjust the material spread, or the preparation of supplementary quotas. The quota is a standard that sets the amount of resources consumed by a unit of qualified products in a reasonable manner and rational use of materials and machinery. It reflects the level of social productivity in a given period. For each construction project, the amount of labor is measured, including basic and other labor. Plus the material of this project, including basic materials and other materials. For the labor unit price, is based on the local labor value of different types of work, the value of the material is based on the pre-market price to develop the budget price.
Q:What is the best bathroom waterproof material? Whether the bathroom is a web or a paint
Bathroom waterproof really worth noting. The bathroom to do the lack of water to remind the Jujiao angle drowned with hair, in addition to materials, is the waterproof process. Everyone's opinion is that the responsibility of the decoration workers, the level of technology is also worth noting. On the current market, most of the waterproof paint, not necessarily brand ring, the price of the product is good, choose the right is the best. The membrane is not suitable for use in the room, not environmentally friendly. Now the indoor bathroom waterproof usually use flexible waterproof paint to do, more environmentally friendly, quality is also more reliable, regardless of the kind of material waterproof, as long as the do after the next closed water test, 24 hours to check no leakage no problem.
Q:Paste the culture of stone mortar into the construction site after the need to do material re-examination?
As for the mortar test block, then look at the side of the side of the side of the United States, some places require, and some do not require
Q:The external walls of the mortar in the insulation mortar need to do what anti-test materials? Can you provide detailed check-in format, please send to my mailbox
The original strength, water resistance, resistance to freeze-thaw, flexibility, compressive strength / flexural strength,
Q:What kind of waterproof material is used for waterproofing in basement?
Basement waterproofing common waterproof material is waterproofing membrane, waterproof coating and mortar waterproofing agent. The basement itself is relatively dark and humid, and the area is generally relatively small, yin and yang angle, pipe and other places are more, if the use of waterproofing membrane is not only not easy to paste paste, the construction of workers technical requirements are relatively high, and because it is used The indoor may be pungent odor is not enough environmentally friendly. So now more commonly used is the waterproof coating and mortar waterproofing agent, waterproof coating relative to the sand and cold workers in addition to the shortage of waste water for the limited strength, brushing the waterproof coating after the need to do a mortar protective layer, so Combined with the ease of construction, the length of the waterproof life, the cost of the point of view, mortar waterproofing agent is now the most suitable material, the cost is the lowest of the three.
Q:Promise insulation mortar and hollow glass beads non-polar insulation mortar What is the difference
Glassy beads is a kind of environmentally friendly new type of inorganic light insulation material, in addition to a light weight, insulation, insulation, fire excellent performance, but also has not burned, high strength, low water absorption, easy and good life Long advantage
Q:Cement mortar label M5, M7.5, M10, C20, C25; cement grade C15, C20, C25, C30, etc., are used to which stage of the building
M is the red brick label, cement mortar is Mb
Q:Whether the mortar waterproofing agent needs to be sampled for inspection
The format of the power of attorney for each place is different, but the main content is basically the same
Q:M10 mortar mix design and raw material test a total of how much material?
Send you when asked to send, if you do not send a small SN20KG, SHA40KG
Q:Now commonly used cement mortar building, what is the ancient use of clay material it
One of the greatest creations of ancient times is the tenon structure. Mortal is our traditional architecture commonly used skills, is the wisdom of the ancestors of the crystallization. In ancient buildings or temples can often be found. The use of the whole structure can be combined with a very solid, without a needle and a nail. This technique can also be found on a general wooden bench. Of course, ancient also have bricks or stone houses, those useful clay sticky. Our ancient city walls, including the Great Wall, were built with glutinous rice as a binder for the addition of material (legendary glutinous rice juice and lime).

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