HDPE Two-Tone sandwich Sheet

Indoor & Outdoor HDPE Flame-Retardant Dual-Color Sandwich Sheet

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Hardware specifications

Indoor & Outdoor HDPE Flame-Retardant Dual-Color Sandwich Sheet builds on the standard dual-color sandwich structure by specifically reinforcing fire-retardant performance, allowing it to meet strict fire-safety requirements across a wide range of indoor and outdoor settings. The sheet is widely used in playground equipment, outdoor furniture, outdoor signage, marine accessories, indoor children's wall toys, kitchen cutting boards, indoor flame-retardant panels, and components surrounding pipe-connection installations, making it a versatile material that balances safety with visual appeal.

The sheet is produced from two layers of contrasting-colored HDPE fused into a single structure, with a clearly defined color contrast between surface and core that allows engraving or routing processes to produce crisp, legible signage and graphic effects, making it particularly well suited to building evacuation signage, fire-zone partition signs, and outdoor fire-equipment markers, all applications where both flame resistance and visibility are critical. The base material itself offers stable flame-retardant characteristics, resisting ignition and limiting flame spread when exposed to fire, and its stable electrical insulation performance further supports its use in protective panels and connecting components positioned around indoor electrical equipment.

In outdoor environments, the sheet's strong UV resistance and weatherability allow it to withstand prolonged intense sunlight, driving rain, and significant temperature fluctuation without fading or deforming, while its good resistance to acids, alkalis, and corrosion makes it equally suitable for marine deck fittings and components around industrial piping in harsh operating environments. The sheet's well-balanced mechanical properties, combining rigidity with toughness, help it resist cracking under external impact or low-temperature conditions, ensuring reliable structural stability over time.

In addition, the material is environmentally friendly, non-toxic, and meets food-grade safety standards, while offering excellent processability that supports cutting, engraving, thermoforming, and drilling. Dual-color combinations, thickness, and overall dimensions can all be flexibly customized to a client's specific requirements, fully satisfying the dual demand for fire-safety performance and decorative effect across both indoor and outdoor application settings. Facility managers responsible for fire-code compliance also value that the flame-retardant performance is built into the base material itself rather than relying on a separate surface coating that could wear away or be damaged over time, ensuring the safety characteristic remains consistent across the full thickness of the sheet for as long as the signage or panel remains in service. Because the same dual-color flame-retardant formulation can be used for both indoor evacuation signage and outdoor fire-equipment markers, facility owners can standardize on a single material specification across an entire building or campus rather than sourcing different products for indoor and outdoor fire-safety signage separately, simplifying procurement and ensuring visual consistency across all fire-safety related signage throughout a property. Building owners managing mixed-use properties also appreciate that a single approved dual-color, flame-retardant specification can often satisfy both interior fire-code signage requirements and exterior equipment-marking needs, reducing the number of separate material approvals that facilities teams need to track across different zones of a single property. Maintenance teams also appreciate that fire-safety inspectors can typically verify the flame-retardant rating from documentation supplied with the original material order, since the property is intrinsic to the sheet rather than dependent on an applied coating that would need separate periodic recertification, simplifying the ongoing compliance paperwork required for many commercial and institutional buildings.

About Us

Zhenjiang Jinhao Road & Bridge Supporting Engineering Co., Ltd.

Jiaxing Xinsen Plastic Co., Ltd.

Founded in October 2001, our factory is a professional private manufacturer specializing in plastic sheet production. Located in Jiaxing, Zhejiang Province, a core city of the Yangtze River Delta, our plant sits at the geometric intersection of Shanghai, Hangzhou and Suzhou. We enjoy superior geographic location with convenient land and sea logistics access.
With over two decades of dedication to the plastic sheet industry, we boast strong R&D capabilities. We have assembled a professional technical team and invited many senior plastic industry specialists to conduct on-site research and development. We hold leading craftsmanship advantages in the R&D and mass production of PP sheets, modified PP sheets, HDPE sheets, LDPE sheets, ABS sheets and other plastic panels.
We provide full customization services covering all material types and specifications. We can develop two-color and three-color sheets as required, as well as single-sided and double-sided textured HDPE sheets to flexibly meet the diverse demands of clients. Our sales network spans across China, including mainland China, Hong Kong, Macao and Taiwan regions. Our products are also exported worldwide to North America, South America, Europe, Southeast Asia, Southern Africa and more. We have earned long-term trust from customers at home and abroad through consistent, reliable product quality.