YL-SNF-A is a high range water reducer and high concentration naphthalene-based superplasticizer also named Naphthalene Sulfonate Formaldehyde Condensate(NSF), SNF, PNS and FDN etc.

YL-SNF-A (Na2SO4≤5%) contains no chloride and is non-corrosive to steel bars, non-poisonous, odorless, and non-flammable. Thus, it meets the requirements of chemica, admixture specifications for concrete,  complying with ASTM C 494, Type F. ASTM C 1017, GB-8076-2008 and GB50119-2003 etc.

1. YL-SNF-A has no retarding and no air-introducing. It is characterized as good superplasticing performance, high water-reducing rate and high strength with low dosage. It has no chloride, low alkali content low sulphonate and high purity. This product is easy to use and can be widely used in differet concretes.
   
2. YL-SNF-A can be applied to make flowing, strong or steam-curing concrete. The minimum working  temperature can be as low as zero centigrade degree. In steam curing, concrete with superplasticizer hasto be strong enough before heating. The steam curing specification ha s to be pre-tested,  It is particularly used as base material for ,compound admixtures.
   
3. It can prevent from the alkali-aggregate reaction because of the biggish alkali reactivity of aggregate or the alkali-aggregate reaction in the moist environment.

1. High water-reducing rate: YL-SNF-A can reduce water 20-30%. It has features of superplasticizer  effectively increases concrete fluidity and reduces water penetration ans segregation and improves the encapsulation forceof the concrete with reinforcing steel bar.
2. Strengthening: Given the same amount of cement and slump requirement, this product with the dosage 0.5-1.2% can increase the concrete the concrete early strength and reinforced effect by 50-100%, 40-70,  25-60% and 20-60% on day, 1,3,7, and 28 respectively.
3. High applicability: It can be used in variety of cement and is compatible with other admixtures.
   
4. Low sodium Sulfate content: The aqueous solution has no crystals in winter, which can avoid pipeline congestions when being used. It is suitable for automatic working.
5. Effective durability: It can modify the structure of concrete and increase the property of  anti-seepage, anti-freezing, and carbonization.
6. Easy to use: It can be added directly or used after dissolved in water, and also be used for different working condition and concrete mixer.

0.5-1.2% by weight of cement. Exact dosage rates depend on the type of effect sought, 

quality of cement and aggregates, water/cement ratio and ambient temperature. Therefore, in many cases it is advisable to carry out trial mixes. 

YL-SNF-A can be added directly or added in after dissolved in water. It can be added during mixing  and   after-mixing (better). The after mixing approach can be achieve better result.

For powder: Woven plastic bag with film liner. Net weight: 25kg +/- 0.2 kg.

It should be stored in a dedicated warehouse that is well-ventilated and dry and keep away from moisture.

Shelf Life: Minimum 12 months. After the expiration date, it can be used if testing results is qualified.