Naphthalene Superplasticizer Powder

Yellow-brown Sodium Naphthalene Sulfonate Formaldehyde

Naphthalene Superplasticizer Powder (BN-A) manufacturer. Features solid content ≥92% and 18-28% water reducing ratio. Formulated as β-naphthalene sulfonate formaldehyde condensate. It ensures high dispersionand drastically enhances concrete early & late strength. Ideal for precast, high-strength & steam-cured concrete.

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Product Description

Appearance:

Yellow-brown or brown powder

Specifications:

Items	Standard	Items	Standard
Appearance	Yellow-brown or brown powder	pH Value	7-9
Solid Content	≥92%	Cement Paste Fluidity	≥250mm
Sodium Sulfate Content	<5%	Fineness (0.315mm sieve residue)	<15%
Chloride Content	<0.3%	Surface Tension	(70±1)×10−3N/m

Dosage: C × 0.75%

Items		Standard (GB8076-2008)	Tested Value
Water Reduction Rate (%)		≥14	18-28
Bleeding Ratio (%)		≤90	79
Air Content (%)		≤3.0	2
Setting Time Difference (min)	Initial Setting	-90 ~ +120	-90 ~ +120
Setting Time Difference (min)	Final Setting	-90 ~ +120	-90 ~ +120
Compressive Strength Ratio (%)	1d	＞140	170
	3d	＞130	160
	7d	＞125	125
	28d	＞120	135
Shrinkage Ratio (%)	90d	<135	82
Corrosion Effect on Steel Reinforcement		None	None

Applications:

General Performance: Formulated as a β-naphthalene sulfonate formaldehyde condensate, this product is a highly adaptable water reducer featuring high dispersibility, low foaming, high water reduction, and superior strength enhancement. It conforms to the GB8076-2008 national first-class standard.

High-Performance Concrete: Highly recommended for preparing high-strength and ultra-high-strength concrete, as well as fluid, anti-seepage, waterproof, and plasticized concrete.

Precast & Reinforced Concrete: Suitable for steam-cured applications, reinforced concrete, and prestressed reinforced concrete.

Cost Efficiency & Workability: At an appropriate dosage (0.5% – 1% of cement weight), it drastically increases concrete strength (both early and long-term), improves workability, and can save 15% – 20% of cement.

Packaging & Storage：

Standard Packaging: 25KG / Bag (PP woven bag with an inner PE liner)

Custom Service: Customized packaging is available upon request.

Storage Recommendations: Store in a cool, dry, and well-ventilated area. Avoid direct sunlight and moisture. The shelf life is 24 months.

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