Food Grade Blue HDPE Sheets 25mm Thickness

2 month ago

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Foshan Anheda New Material Co., Ltd

8 month

Product details

Food Grade Blue HDPE Sheets 25mm Thickness

Core Performance Parameters and Advantages

Basic Physical Properties

Density: 0.94-0.97 g/cm³ (lighter than water, about 1/8 that of steel)

Color: Uniform blue (commonly industrial blue and marine blue, but custom colors are available)

The blue color is typically achieved by adding a stabilized pigment, which provides both marking and partial UV protection.

Surface: Smooth and flat (extruded sheets have a slight texture, while molded sheets have a higher gloss).

The surface can be polished or roughened (e.g., textured for anti-slip requirements).

Mechanical Properties

Tensile Strength: 29 MPa (higher than LDPE (10-20 MPa), but lower than engineering plastics like nylon PA6 (50-70 MPa);

Elongation at Break: ≥180% (high, suitable for absorbing impact energy);

Flexural Strength: Approximately 40-50 MPa (suitable for withstanding moderate bending loads, such as pallets and shelf supports);

Compressive Strength: Approximately 15-25 MPa (suitable for low-pressure loads; high-pressure loads require thicker or composite structures);

Hardness : 62 (harder than LDPE, but softer than metal/engineering plastics).

high density polyethylene

Chemical Properties

Acid and Alkali Resistance: Unreactive to strong acids (concentrated sulfuric acid, concentrated nitric acid), strong bases (40% sodium hydroxide), and saline solutions (brine, seawater) at temperatures ranging from room temperature to 60°C.

Organic Solvent Resistance: Stable in non-polar organic solvents (such as gasoline, diesel, and lubricating oil) (may slightly swell after long-term immersion, but performance remains largely unchanged). However, it may slowly dissolve in polar solvents (such as acetone, benzene, and chloroform) at high temperatures (short-term exposure at room temperature is not a problem).

Other Media Resistance: Resistant to water (including boiling water), steam, oxidizing agents (such as hydrogen peroxide), and reducing agents (such as sodium sulfite).

Special Advantages: Blue HDPE sheet is irreplaceable for chemical storage tank linings, sewage treatment tank covers, and acid-base neutralization tank protective linings, capable of direct contact with corrosive liquids (such as acidic wastewater tanks in electroplating plants).

Thermal Properties

Melting Point: Approximately 135°C (Actual Processing Temperature: 180-240°C);

Continuous Use Temperature: -50°C to 90°C (Short-term resistance to 110°C, long-term use recommended: ≤60°C);

Low-Temperature Toughness: Remains flexible (will not crack) at -50°C (extremely cold), making it suitable for use in cold regions.

Friction and Wear Resistance

Coefficient of Friction: Approximately 0.2-0.3 when rubbing against steel (lower than the 0.5-0.8 of metal, but higher than the 0.04 of PTFE), with good self-lubrication.

Wear Resistance: Moderate (will experience some wear with long-term sliding friction, but better than LDPE and PP). This can be improved through surface hardening (such as coating) or compounding with other wear-resistant materials.

Electrical Properties

Insulation Resistance: Volume Resistivity > 10¹⁴ Ω·cm (close to an ideal insulator);

Dielectric Strength: ≥ 45 kV/mm (resistant to breakdown at a certain voltage, suitable for low-voltage insulation);

Dielectric Constant: 2.5 (stable, minimal signal transmission interference).

polyethylene sheet

Typical Application Scenarios

Industrial and Chemical Industries

Corrosion-Resistant Tank/Water Tank Liners: Used for storing acid, alkali, and salt solutions (e.g., electroplating tanks and sewage treatment tank linings). The blue color helps distinguish different functional areas (e.g., clean and contaminated areas).
Equipment Protective Covers/Baffles: Protect mechanical equipment from chemical corrosion (e.g., in acid and alkali spray environments). The blue color facilitates identification or warnings.
Pipe/Valve Covers: Wrap around pipe connections or valves to prevent chemical leakage and corrosion of surrounding structures.

Water Treatment and Environmental Protection Industries

Wastewater Treatment Equipment Components: Grilles and filter tank covers (the blue color conceals internal structures and resists sewage corrosion).
Rainwater Collection Systems: Storage tanks and guide plates (resistant to acid and alkali components in rainwater, and the blue color offers an attractive appearance).

Food and Pharmaceutical Applications

Food processing equipment linings: such as baking mold support plates and conveyor belt pallets for beverage filling lines (food-grade HDPE must be FDA/NSF compliant).
Pharmaceutical packaging accessories: medicine storage racks and laboratory utensil pads (non-toxic and easy to clean).

Construction and Civilian Applications

Outdoor deck/walkway decking: Anti-slip walkways in parks and piers (blue anti-slip plate with textured surface for improved safety and aesthetics).
Building formwork support: Temporary structural support panels (lightweight and corrosion-resistant, replacing wooden formwork).
Decorative panels: Interior partitions and wall decorations (blue provides a soft visual effect, is stain-resistant, and is easy to clean).

Customized Applications

Warnings and signs: Industrial workshop floor partitions (blue indicates "safe passage" or "equipment area") and stair anti-slip strips (with a roughened surface).
Shading and privacy protection: Greenhouse sunshades (blue filters some light to regulate plant lighting), shower screens (privacy and waterproof).
Wear-resistant sports equipment: Gym flooring, ski bindings (low friction and cold-resistant).