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NS-3361S Physical Foaming Nucleating Agent for LDPE CO2 Foaming

This foaming nucleating agent is composed of carrier resin, foam stabilizer, nucleating agent, antioxidant, dispersant, etc. It can effectively reduce the free energy barrier of nucleation, form a large number of evenly distributed nucleation points, and give the foamed products fine and even pores. The nucleation efficiency is very high, and the addition amount is only about 10% of the traditional nucleating agent. It is suitable for single-stage and double-stage LDPE physical (carbon dioxide) foaming production lines.
  • NS-3361S

  • BENQI

  • white granules

  • Nanomaterials

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1Discover NS-3361S, a state-of-the-art physical foaming nucleating agent engineered for superior performance in LDPE (Low-Density Polyethylene) foam manufacturing using carbon dioxide (CO2) as the blowing agent. This advanced additive is specifically formulated to create a perfectly uniform, fine-celled foam structure, which is essential for producing high-quality, ultra-lightweight, and premium-grade foamed products.

Our innovative formula, which incorporates nanotechnology, dramatically lowers the free energy barrier required for bubble nucleation. This results in an exceptionally high density of nucleation sites, leading to a closed-cell foam with a consistent, micro-fine cell structure. The enhanced cell structure directly translates to improved physical properties, including better surface smoothness, higher compressive strength, and superior thermal insulation.

A key economic advantage of NS-3361S is its remarkable efficiency. It achieves outstanding results at an addition rate of only 0.5% to 1.5%—approximately 90% less than traditional nucleating agents. This significantly reduces your raw material costs and minimizes the impact on your polymer matrix. Furthermore, NS-3361S is a food-grade, environmentally friendly solution, ensuring safety for applications involving food contact and meeting stringent regulatory standards.


Key Features & Benefits

  • Exceptional Nucleation Efficiency: Generates a massive number of evenly distributed nucleation points for an extremely fine and uniform cell structure.

  • Superior Foam Quality: Ideal for manufacturing high-end, ultra-light products with excellent whiteness and a smooth, appealing appearance.

  • Significant Cost Reduction: Ultra-low dosage (only ~10% of traditional agents) drastically lowers your production costs.

  • Advanced Nanomaterial Composition: Ensures consistent performance and excellent dispersion within the polymer melt.

  • Food-Grade & Eco-Safe: Complies with food contact safety regulations, making it suitable for sensitive applications.

  • Process Compatibility: Optimized for both single-stage and two-stage LDPE physical (CO2) foaming extrusion lines.

  • Easy Handling: Supplied as clean, white, free-flowing granules with no odor, no black spots, and anti-stick properties.

Application Areas

NS-3361S is the ideal choice for a wide range of foamed LDPE products, particularly where a fine cell structure and low density are critical. Key application areas include:

  • Packaging Materials: High-quality foam sheets for protective packaging, fruit nets, and cushioning materials for fragile goods.

  • Insulation Products: Foam boards and rolls for thermal and acoustic insulation in the construction industry.

  • Automotive Components: Lightweight gaskets, seals, and padding materials.

  • Sports & Leisure: Foam layers in sports mats, yoga mats, and marine flotation devices.

  • Consumer Goods: Foam for footwear insoles, lightweight craft foam, and various disposable foam products.

  • Food Contact Applications: Tray liners, foam packaging for perishable foods, and other applications requiring food-grade certification.


19 58 制作易碎品隔层 (2) 15
Beverage Bottle Fragile Item Compartment Cushioning Packaging


Package & Storage
25 kg/bag. Store in a cool, dry place away from steam pipes, fire sources, and direct sunlight.


Reference Dosage
0.5% - 1.5% (by weight, in extrusion processes).


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BENQl,founded in 2008, is a science and technology company that focus on the high-end modified foaming agent ,hihg technology stabilizer & foaming agent masterbatch of plastic industry.

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