Product Name:Ultra-High Molecular Weight Silicone Surface Modifier NV-SILK 5051

Product code: NV-CA5051

Chemical Characterization: Water-dispersible Ultra-High Molecular Weight Polydimethylsiloxane (UHMW-PDMS) Surface Modifier Emulsion

Product Description

NV-SILK 5051 is a high-performance surface modifier based on ultra-high molecular weight polydimethylsiloxane (UHMW-PDMS) technology. It is a water-dispersible silicone modifier designed to provide exceptional slip performance, silky tactile feel, and enhanced surface durability in waterborne and selected solvent-borne coating systems.

Due to its unique ultra-high molecular weight silicone structure, NV-SILK 5051 effectively reduces surface friction, improves mar and abrasion resistance, and provides a smooth, premium touch to finished surfaces. It also enhances anti-blocking properties and surface release performance, helping to improve the handling, stacking, and long-term durability of coated substrates.

NV-SILK 5051 exhibits excellent compatibility with various resin systems, including polyurethane (PU), acrylic, polyester, and nitrocellulose coatings. It can be used in leather topcoats, industrial coatings, printing inks, and coated fabric finishes where superior slip, tactile quality, and surface protection are required.

Typical propertes:

Appearance: Translucent to milky white liquid

Odor: Slight characteristic odor

Active Content (%): 80 ± 2

Viscosity (25°C, cP): 200,000–700,000

Carrier/Solvent: Water

Key Benefits & Features

. Ultra-Smooth Silky Feel: Provides a premium tactile surface with reduced friction and enhanced slip properties.

. Outstanding Mar and Abrasion Resistance: Improves surface durability and protects coating films against scuffing and abrasion.

. Excellent Anti-Blocking Performance: Reduces surface adhesion during stacking, packaging, and storage.

. Broad Resin Compatibility: Compatible with polyurethane, acrylic, polyester, and nitrocellulose resin systems.

. Improved Surface Water Repellency: Enhances resistance to moisture and surface contamination.

. Excellent Recoatability: Maintains intercoat adhesion and minimizes surface defects such as fisheyes.

Applications

NV-SILK 5051 is widely used in high-performance surface finishing systems where exceptional slip performance, mar resistance, and premium tactile properties are required:

. Leather Topcoats:

Natural leather and synthetic leather (PU/PVC) finishing for automotive interiors, footwear, furniture, and fashion applications.

. Industrial Coatings & Paints:

 Waterborne and solvent-borne industrial finishes, wood coatings, and overprint varnishes (OPV).

. Printing Inks:

Waterborne and solvent-borne flexographic, gravure, and offset printing inks.

. Coated Fabrics & Technical Textiles:

PU-coated fabrics, synthetic materials, and technical textiles requiring improved surface smoothness, slip properties, and abrasion resistance

Application Guide

. Recommended Dosage

The dosage of NV-CA5051 depends on the resin system, formulation type, and target surface performance. All percentages are based on the total formulation weight:

. Incorporation Method

Addition Stage: NV-CA5051 can be added during the post-addition (let-down) stage or directly at the final formulation step.

Mixing: Mix thoroughly under slow-to-medium shear agitation to achieve homogeneous distribution. Avoid high-shear equipment that may break the emulsion structure.

System Testing: Pre-screening is recommended to confirm compatibility with specific resin binders (e.g., polyurethane, acrylics, polyester) and verify long-term stability.

Packaging

200 kg drum

Storage

Store in the original sealed container.

Keep away from:Fire sources,Heat sources,Direct sunlight,Rain and moisture

Recommended storage temperature:5–35℃

Seal the container tightly after each use.

Shelf life:12 months from the date of manufacture