Nouryon Expancel 920 DU 40

Nouryon Expancel 920 DU 40 is the industry’s preferred thermoplastic expandable microsphere blowing agent and lightweight filler for puff plastisol inks, textile printing inks, and raised garment effects. As an authorized/stocking distributor, JITSY supplies Nouryon Expancel 920 DU 40 to ink manufacturers, screen printers, and industrial formulators across India. We offer local stock, technical support, and batch traceability for both high-volume and specialty applications.

Nouryon Expancel 920 DU 40 is engineered for:

• Puff plastisol inks and textile screen printing (delivering uniform, soft, raised effects with a premium hand feel)
• PVC plastisols, underbody sealants, putties, polyurethane and acrylic caulks, weather strips, printing inks, coatings, and construction materials (enabling weight reduction, improved elasticity, and controlled expansion)

This DU (dry, unexpanded) grade expands at 121–178 °C to a fine, uniform 40 µm cell size, ideal for both high-quality puff ink effects and industrial lightweighting.

Key Features and Benefits Across Puff Ink, Plastisols and Sealants

• Uniform expansion: Consistent, stable puff height and smooth, 3D raised effect in textile prints
• Soft, elastic hand feel: Lightweight, compressible, and resilient puff prints for fashion and sportswear
• Closed-cell structure: Excellent wash durability, low after-sinking, and high recovery after deformation
• Low density: Significant weight reduction and material savings in inks, sealants, and construction materials
• Versatile compatibility: Works in PVC plastisols, solvent-based sealants, and non-aqueous coatings

Technical Specifications of Nouryon Expancel 920 DU 40

DU Grade and Chemical Nature

• DU = Dry, Unexpanded: Powder form for non-aqueous systems; expands only during user’s process
• Thermoplastic shell: Acrylonitrile-based, encapsulating a hydrocarbon gas
• No water content: Perfect for PVC plastisols, puff inks, and solvent-borne sealants

Expansion Temperature Window and 40 µm Expanded Particle Size

• Expansion onset: ~121 °C; max expansion: up to ~178 °C—matches typical puff ink curing and PVC plastisol gelling
• Expanded particle size: ~40 µm—yields smooth, rounded, uniform puff or foam structure

Density, Cell Structure and Mechanical Behaviour

• Very low expanded density—drives weight savings and high coverage
• Uniform, closed-cell microstructure—gives softness, resilience, and low shrinkage
• Improved vibration and sound absorption in automotive and construction sealants

Forms, Handling Characteristics and Storage Stability

• Supplied as: Dry, free-flowing white powder
• Storage: Cool, dry, sealed; avoid moisture and excessive compression
• Shelf life: Maintains expansion performance when properly stored

Puff Ink and Textile Printing Applications

Puff Plastisol Inks for Garment and Textile Printing

Nouryon Expancel 920 DU 40 is the industry standard for puff plastisol inks in India’s fashion, sportswear, and branding segments. It produces a stable, uniform puff height with soft, cushiony hand feel, and is compatible with typical screen printing, mesh counts (32–43T), and curing profiles (140–160 °C, 1–2 min).

Raised Logos, Lettering and Graphic Effects

Delivers crisp, tactile 3D effects for logos, lettering, and graphics on cotton, blends, and technical textiles—favoured by exporters in Tiruppur, Ludhiana, Surat, and Mumbai.

Process Guidelines for Puff Ink

• Ink formulation: Disperse DU powder into plastisol base; adjust viscosity for optimal laydown
• Mesh/film build: Medium mesh, generous deposit for best puff
• Curing: Oven/tunnel dryer or flash cure at 140–160 °C for 1–2 min; avoid overcuring
• Troubleshooting: Our technical team can advise on pinhole prevention, puff uniformity, and wash durability

Other End‑Use Applications Suggested by Manufacturer

PVC Plastisols and Underbody Sealants

• Lightweight, elastic underbody coatings and seam sealers for automotive and construction
• Uniform cell structure, low shrinkage, and easy sanding

Putties, Polyurethane and Acrylic Sealants

• Used in high-build putties, PU sealants, and acrylic caulks for shock/vibration absorption, easy application, and low after-sinking

Printing Inks, Weather Strips and Coatings

• Enhances density reduction and resilience in specialty inks, weather strips, and industrial coatings

Construction Materials and Polymer Systems

• Provides insulation, weight reduction, and crack resistance in mortars, boards, and composite systems

Advantages of Nouryon Expancel 920 DU 40 vs Chemical Blowing Agents and Conventional Fillers

Benefits in Puff Ink and Textile Printing

• Physical expansion: No chemical by-products, odor, or color change
• Uniform, soft, lightweight puff: Unmatched by mineral fillers or chemical agents
• Superior durability & wash fastness: Closed-cell structure resists compression and flexing

Benefits in PVC Plastisols, Sealants and Underbody Coatings

• Low after-sinking and shrinkage: Maintains build and smoothness over time
• Easy sanding and rework: Ideal for automotive and construction applications

Selection vs Other Expancel Grades

• 920 DU 40: Best for mid-to-high temp curing, fine puff, and soft hand feel
• 031/051/053 DU 40: For lower temp or different texture
• 930 DU 120/909 DU 80: For coarser, higher-build effects