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White High Opaque Vinyl
Calendered PVC with titanium dioxide loading achieving 99% opacity. Conforms to SAE J1960 for outdoor fleet marking.
Manufactured by Shanghai Hanker Industrial Co., Ltd.
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Product Overview
White High Opaque Vinyl is a heavily pigmented, calandared PVC film designed to block background colors and substrate imperfections. Manufactured by Shanghai Hanker Industrial Co., Ltd. (DPI brand), this material incorporates a multi-pass white coating system that achieves light transmission of less than 1% at 75μm thickness.
The formulation utilizes high-density titanium dioxide (TiO₂) distribution within the PVC matrix rather than surface printing, preventing abrasion-induced transparency during weeding or squeegee application. Its opaque layer enables one-pass coverage over dark vehicle paints, corrugated plastics, and recycled cardboard substrates without edge halo effects.
Manufacturer
Shanghai Hanker Industrial Co., Ltd.
Brand
DPI
Material Type
Monomeric/Polymetric Calendered PVC
Opacity Rating
≥99% (0.5% transmission)
Product Parameters
Specifications validated for digital print and color layering. Test methods: ASTM E97 (opacity), SAE J1960 (exterior weathering).
Physical Properties
| Total Thickness | 75μm (3 mil), 100μm (4 mil) |
| Opacity | 99% minimum (0.5% transmission) |
| Whiteness Index (CIE) | 92 ± 2 |
| Roll Width | 48", 54", 60" |
| Roll Length | 50 yd, 100 yd |
| Tensile (MD) | ≥28 lb/in |
| Shrinkage (70°C, 30min) | <0.5% MD / <0.3% CD |
Adhesive & Liner
| Peel Adhesion (Steel, 180°) | 45 oz/in (initial), 65 oz/in (24hr) |
| Shear Resistance | >48 hours, 1x1 inch, 1kg |
| Liner Type | White kraft or PET film |
| Liner Release | 20-35 g/in (low-tack variant available) |
Durability Parameters
| Outdoor Florida Exposure | 5 years (ΔE ≤5, no cracking) |
| QUV-A (340nm) | 2000 hrs, gloss retention >70% |
| Operating Temp Range | -30°C to 80°C |
Note: White opacity is achieved via bulk pigmentation. Surface printed white (inkjet) is not equivalent and may show pinholes. 75μm grade is suitable for flat surfaces; 100μm recommended for rivet and corrugation bridging.
About Shanghai Hanker Industrial Co., Ltd.
Shanghai Hanker Industrial Co., Ltd. is China White High Opaque Vinyl Manufacturers and Wholesale White High Opaque Vinyl Suppliers. With over 20 years of industry experience, we have grown into a fully-integrated enterprise capable of producing a complete range of products across the entire industrial chain.
2004-2005
Company Foundation
Shanghai Hanker Industrial Co., Ltd began preparations in 2004 and was officially registered and established in 2005. The DPI brand was founded in the same year, marking the beginning of our journey in the adhesive materials industry.
2012
Expansion of Production Base
To enhance the influence and market share of the DPI brand, we expanded our production base to Nanhuating Industrial Park in Fengxian District, Shanghai. The facility covers 25,000 square meters and employs over 160 people, equipped with modern production workshops and advanced equipment including silicone coating machines, laminating machines, and automated punching machines.
2016
New Manufacturing Facility in Jiangsu
We established Jiangsu DPI New Materials Co., Ltd. in Qidong, Jiangsu Province, covering 34,000 square meters. This facility is equipped with China's leading calendering machine, high-standard silicon coating machines, and PE coating machines, enabling independent production of raw materials like PVC calendering film and release paper.
Present
Industry Leadership and Innovation
Today, Hanker has developed into a fully-integrated enterprise with comprehensive capabilities across upstream, midstream, and downstream industrial chains. We hold over 65 invention and utility model patents, and our high-quality DPI products are sold to more than 80 countries worldwide.
Certifications & Quality Standards
National High-tech Enterprise
ISO9001 Quality Management
ISO14001 Environmental Management
Shanghai Contract-abiding Enterprise
Environmental Commitment
We actively uphold our environmental protection responsibilities by utilizing advanced RTO equipment, achieving a 99.9% waste gas treatment rate. We encourage full employee participation in environmental practices and support sustainable development through tangible actions.
Product Benefits
Performance differentiation between standard cast vinyl, monomeric calendered, and high-opacity calendered films.
Background Suppression
Eliminates ghosting of red, black, or multicolored substrates. Prepress white layer application is not required, reducing ink consumption by 18-22%.
Chalk-Resistant Topcoat
Acrylic clear coat formulated with UV absorbers. Prevents TiO₂-catalyzed degradation and chalking observed in standard white films after 2 years.
Ink Trap Minimization
Surface tension optimized at 42-44 dynes/cm². Reduces orange peel and pinholes in solid white digital print floods.
Product Features
Construction attributes for color layering, contour cutting, and warranty compliance.
- Dual-Stage Calendering: Orientation control reduces flagging at die-cut label edges.
- Perma-White Technology: Anti-yellowing package tested per ASTM D4329.
- Rapid Tack Adhesive: 85% ultimate bond achieved within 20 minutes of application.
- Conformable Napping: Compressible layer for segmented vehicle wraps.
- Solvent Resistant: Withstands gasoline splash and diesel fumes.
- Matrix Stripping: Clean tear during rotary die-cutting.
Product Applications
Sectors requiring light blocking and brand color accuracy.
Fleet Refurbishment
Partial wraps over existing faded fleet graphics. High opacity conceals prior logos without removal of old vinyl.
- Box Trucks: White vinyl over colored gel-coat fiberglass.
- Emergency Vehicles: High contrast base for reflective chevrons.
Corrugated & Plastic Box Labeling
Direct application to brown kraft cardboard or HDPE totes. Blocks natural material undertones for barcode scanning reliability.
- Returnable Containers: 100μm grade withstands fork truck abrasion.
Backlit Signage Overlay
Applied to non-illuminated portions of lightbox signage to prevent light bleed around LED modules.
- Channel Letters: Masking returns and sidewalls.
Field Handling
Cold Folding
Do not fold below 10°C. Micro-cracks in pigment layer become visible when stretched over rivets.
Weeding Temperature
Warm vinyl to 25°C prior to weeding fine text (≤6pt). Cold vinyl may delaminate color layer.
Ink Saturation
Eco-solvent ink density increases opacity. Over-saturation causes cockling; restrict passes to 4-6.
Clearcoat Protection
For 5-year outdoor use, overlaminate recommended. Surface is printable but not rated for abrasion without lamination.
Frequently Asked Questions
Technical concerns regarding opacity, adhesive compatibility, and print adhesion.
How is 99% opacity measured?
Via contrast ratio (black/white backing) per ASTM D2805. Film is placed over black and white substrates; reflectance ratio ≥0.99 indicates one layer sufficient to mask black.
Can I use this for full vehicle wraps?
Yes, 100μm grade with air-egress adhesive is recommended for wraps. 75μm grade is intended for flat panels and labels, not compound curves.
Does high TiO₂ content affect cutting?
Minimally. Blade wear increases approximately 15% compared to non-pigmented cast vinyl. Use carbide tipped blades for production runs exceeding 500 linear feet.
Is this compatible with latex ink?
Yes, includes heat-activated receptor layer. Curing temperature not to exceed 60°C to avoid shrinkage.
What liner option is best for high-speed labeling?
PET liner (clear) provides rigidity for label applicators. Kraft liner is more economical for hand application.
Interested in DPI Color Cutting Vinyl?
As a direct manufacturer with over 20 years of experience, Shanghai Hanker Industrial offers competitive pricing, flexible order quantities, and comprehensive technical support for our DPI brand products.
