High Density Polyethylene HDPE Block - Safe Educational Building Cubes from China Suppliers & Factory
Parameter of HDPE Block
| Parameter Items | Specifications/Description |
| Material | HDPE (High Density Polyethylene), through the food grade safety certification |
| Color | Red is the main, other colors can be customized |
| Size | Square: 5.5cm x 5.5cm x 5.5cm; Rectangle: 9.5cm x 19cm |
| Applicable age | Children over 2 years old |
| Density | 0.941~0.965 g/cm³ |
| Temperature range | -70℃ to +130℃ |
| Surface Finish | Rounded corners, smooth, no burrs, anti-scratch |
| Environmentally Friendly | Recyclable, RoHS compliant |
Production Process of HDPE Block
The production process of HDPE cubes is mainly divided into the following steps:
Select HDPE pellets, dry and remove impurities to ensure material purity.
HDPE pellets are heated to 220~260℃ by extruder, and then injected into precision molds for molding after melting.
Adopt water cooling or air cooling system to cool the product quickly to ensure the structural stability and dimensional accuracy.
Cut into square shape, surface polishing to eliminate burrs.
Pass the drop test, chemical safety test, etc., and then packaged and shipped out after passing the test.
Advantages of HDPE Block
Non-toxic and odorless, rounded corners to avoid children's scratches, in line with the safety standards for children's toys.
Wear-resistant, strong impact resistance, long service life, suitable for repeated assembly.
Recyclable, low energy consumption in the production process, in line with the requirements of sustainable development.
Support injection molding, extrusion and other processes, can be customized complex shapes.
Acid and alkali resistant, corrosion resistant, suitable for chemical industry, sewage treatment and other scenarios.
Application of HDPE Block
- Educational toys: Cultivate hands-on ability and creativity, such as the red cube assembled blocks of Sheng Yu Technology.
- Teaching model: used for structure building demonstration in STEM education.
- Waterproof layer material: used for seepage control in basements and roofs.
- Floor mats/soundproof boards: lightweight and wear-resistant, suitable for stadiums and soundproofing projects.
- Sewage treatment: to make storage tanks, pipeline lining, strong corrosion resistance.
- Landfill: used as impermeable isolation layer to prevent the spread of pollutants.
- Irrigation system: HDPE pipes and fittings with excellent weather resistance.
- Greenhouse structure: UV resistance, prolong service life.
- Equipment guards: abrasion and impact resistance to protect mechanical parts.
- Logistics packaging: customized pallets and containers to reduce transportation loss.
Frequently Asked Questions (FAQ)
Q: Are HDPE blocks safe for children?
Yes, the material is food-grade certified, non-toxic, and odorless. The blocks feature smooth, rounded corners with no burrs to prevent scratching, which complies with child toy safety standards.
Q: What temperature range can HDPE blocks withstand?
HDPE blocks have an excellent temperature tolerance range, performing safely and stably from -70℃ up to +130℃.
Q: Can the color and size of the HDPE blocks be customized?
While red is the primary standard color, other colors can be fully customized. Standard sizes include square shapes (5.5cm x 5.5cm x 5.5cm) and rectangular shapes (9.5cm x 19cm).
Q: What are the main applications of HDPE blocks in construction?
In construction, they are primarily used as waterproof layer materials for seepage control in basements and roofs, as well as lightweight, wear-resistant floor mats and soundproof boards for stadiums.
Q: How is the quality of the HDPE blocks controlled during production?
The blocks undergo strict post-processing, including surface polishing to eliminate burrs. Before packaging, they must pass drop testing and chemical safety testing to ensure structural integrity and safety.