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Reflective Silver Blockout
A composite signage material featuring a highly reflective silver surface and a light-blocking core, designed to enhance graphic visibility in low-light conditions while ensuring opacity.
Manufactured by Shanghai Hanker Industrial Co., Ltd.
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Product Overview
Reflective Silver Blockout Banner Material is engineered for applications where maximum visibility day and night is required. This material combines a micro-prismatic reflective silver face with a dense, opaque core layer that prevents light transmission.
The reflective surface efficiently returns light from sources such as vehicle headlights or street lamps, making graphics appear illuminated in dark environments. Simultaneously, the blockout core ensures that printed graphics on one side are not visible from the reverse, and prevents unwanted backlighting from showing through. This makes it suitable for double-sided signage where messages need to be clear from both directions without interference.
Core Function
Night Visibility & Opacity
Face Material
Reflective Silver Vinyl/PVC
Core Layer
Opaque Black PE or PVC
Print Method
Solvent, Eco-Solvent, UV Latex
Product Parameters
Detailed specifications for Reflective Silver Blockout material, outlining its reflective properties, physical construction, and compatibility.
Physical Properties
| Total Thickness | 13 mil (330 μm) ± 10% |
| Face Weight (Silver Layer) | Approx. 250 gsm |
| Core Weight (Blockout) | Approx. 300 gsm |
| Standard Widths | 1.27m, 1.52m, 1.6m, 3.2m |
| Roll Length | 30m, 50m |
| Core Diameter | 3" (76mm) / 6" (152mm) |
| Surface Finish | High-Gloss Reflective, Printable |
Performance Parameters
| Reflective Coefficient (ASTM E810) | > 300 cd/lx/m² |
| Opacity Level | > 99.5% (Light Blocking) |
| Tensile Strength (MD/CD) | > 100 N/cm / > 80 N/cm |
| Adhesion (Peel Strength) | > 25 N/50mm |
| Temperature Range | -30°C to 70°C |
| Outdoor Durability | 3-5 years (Laminated) |
Environmental Resistance
| Water Resistance | Excellent (Waterproof) |
| UV & Weather Resistance | High (With UV-resistant inks & laminate) |
| Scratch Resistance | Moderate (Enhanced with overlaminate) |
| Chemical Resistance | Good resistance to mild acids, alkalis, detergents |
Note: Reflective performance is measured at a standard observation angle of 0.2° and entrance angle of -4°. Actual nighttime visibility depends on light source intensity and viewer position.
About Shanghai Hanker Industrial Co., Ltd.
Shanghai Hanker Industrial Co., Ltd. is China Reflective Silver Blockout Manufacturers and Wholesale Reflective Silver Blockout 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
This material provides functional benefits that address specific challenges in safety and advertising signage.
Passive Nighttime Visibility
The reflective surface utilizes ambient light sources like car headlights to make graphics visible after dark, without requiring electrical power.
Complete Graphic Opacity
The integrated blockout core prevents see-through, allowing for clean, independent double-sided printing and eliminating unwanted light bleed.
Dual-Environment Performance
Functions effectively as a standard daytime graphic while activating its reflective properties in low-light conditions for 24-hour messaging.
Product Features
The construction and coating of Reflective Silver Blockout material deliver specific performance characteristics.
- Micro-Prismatic Reflective Layer: Embedded glass beads or prismatic structure provides high-intensity retroreflection.
- Integrated Opaque Core: A solid black layer laminated between surfaces to block 99.5% of transmitted light.
- Printable Reflective Surface: Treated to accept solvent, eco-solvent, and UV-curable inks without compromising reflectivity.
- Waterproof Construction: Fully sealed edges and material composition prevent water ingress.
- Dimensional Stability: Low-stretch properties ensure graphics remain taut and flat on frames and installations.
- Wide Temperature Tolerance: Maintains flexibility and adhesion in both cold and moderately hot climates.
- Compatible with Lamination: Can be finished with clear overlaminates for added scratch and UV protection.
- Die-Cut & Fabrication Ready: Can be cleanly die-cut, hemmed, and grommeted for various sign formats.
Product Applications
Reflective Silver Blockout material is specified for signage that requires guaranteed visibility in low-light or variable conditions.
Road Safety & Traffic Management
Essential for signs that must be visible to drivers at night, enhancing road safety without electrical infrastructure.
- Construction Zone Signage: Warns drivers of hazards in low-light work areas.
- Parking & Directional Signs: Guides traffic in unlit or dimly lit parking lots and facilities.
- Temporary Traffic Diverters: For detours and road closures during night hours.
Retail & Promotional Signage
Extends the advertising impact of storefront and outdoor retail signs into the evening hours.
- 24-Hour Business Signage: For gas stations, convenience stores, and pharmacies.
- Shopping Mall Promotions: Banners and posters visible in mall exteriors after closing.
- Event & Sale Banners: Ensures promotional messages are seen day and night.
Industrial & Perimeter Safety
Communicates critical safety and identification information in industrial settings with limited lighting.
- Warehouse & Logistics Identification: Bay numbers and safety signs visible under vehicle lights.
- Construction Site Signage: Perimeter fencing signs for after-hours visibility.
- Emergency Information Signs: For exits and assembly points in outdoor areas.
Printing & Installation Guidelines
Printing Considerations
Use white ink underbase or increased color saturation for graphics to maintain vibrancy on the silver substrate. Ensure inks are compatible and cured properly.
Maximizing Reflectivity
Design graphics with high contrast. Large, solid areas of dark ink will appear dark at night; reflective areas are most effective with minimal ink coverage.
Installation
Install with the reflective face oriented toward the expected primary light sources (e.g., traffic flow). Ensure the surface is clean and flat for optimal performance.
Durability Enhancement
For long-term outdoor use, apply a UV-protective laminate. This protects the printed image and the reflective coating from abrasion and environmental degradation.
Frequently Asked Questions
Answers to frequent questions about the capabilities and use of Reflective Silver Blockout material.
How reflective is this material, and from what distance can it be seen at night?
It meets high-intensity reflective standards (typically >300 cd/lx/m²). Visibility distance depends on the light source. Under standard car headlights, a well-designed sign can be effectively reflective from several hundred feet away, alerting drivers in time for reaction.
Can I print full-color photographs on this material?
Yes, but with consideration. The silver background will affect color rendering, often requiring a white underbase. At night, the reflective effect works only where ink is not printed, so detailed photos may lose reflective properties. It is best for high-contrast graphics with bold elements.
Is the material suitable for single-sided signs?
Yes, it is excellent for single-sided signs where backlighting from the sun or other sources is an issue. The blockout core prevents the sign from appearing "washed out" when sunlight shines from behind it, maintaining color integrity.
How do I clean a reflective banner?
Gently clean with a soft cloth, mild soap, and water. Avoid abrasive brushes or harsh chemical cleaners, as they can scratch the reflective surface or degrade the protective overlaminate, reducing reflectivity and weather resistance.
What is the difference between this and standard blockout banner material?
The key difference is the face material. Standard blockout banners have a white or colored matte/gloss printable face. This material has a reflective silver face, providing the same opacity but adding significant nighttime visibility without external power, which standard blockout does not offer.
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.
