Is the material of plastic safety fences safe and environmentally friendly?

The overall performance of plastic safety fences in terms of safety and environmental protection is good, but a comprehensive assessment should be made based on specific material types, production standards, and usage scenarios. The key conclusions are as follows: 
 I. Core Material Safety Verification 
Mainstream eco-friendly base materials 
HDPE (High-Density Polyethylene): Dominant, free of toxic substances such as BPA (Bisphenol A) and formaldehyde, meeting food contact standards, and the preferred choice for infant products.
Recycled plastic: It is necessary to ensure that the proportion of virgin material is ≥70%, and it must pass heavy metal migration tests (lead ≤ 90 ppm, cadmium ≤ 75 ppm). 
Control of Hazardous Substances 
Hazardous substances    Maximum limit requirements    Certification basis
Phthalates    Total ≤ 0.1%    EU REACH Regulation
Heavy metals (lead/cadmium)    Lead ≤ 90 ppm, Cadmium ≤ 75 ppm    Chinese National Standard GB migration limit

 2. Environmental performance advantages 
Recycling and regeneration characteristics 
HDPE can be 100% recycled and remade. The waste fences, after being crushed, can be used to manufacture drainage pipes, flower boxes and other products; the impurity content of the recycled plastic is ≤ 1%, which complies with the national standard of GB/T 40006 for recycled plastic. 

Production energy consumption is 40% lower than that of metal fences, and there is no heavy metal pollution. UV stabilizers are added, and the fading rate is less than 15% within 5 years in the environment ranging from -40℃ to 60℃, with a lifespan of 5 to 10 years.

III. Safety Points by Scenarios

Application Scenarios Core Risk Control Measures
Infant Safety Fence ① Hole diameter ≤ 6.35mm to prevent finger entrapment; ② Rounded corners with a radius of ≥ 2.5mm; ③ Burning rate ≤ 40mm/min
Industrial/Transportation Fencing ① Retroreflective coefficient of reflective film ≥ 300 cd/lx/m²; ② Water-filled base can withstand wind load ≥ 0.5kN/m²

IV. Material Comparison and Recommendations

Material Type Safety Environmental Friendliness Applicable Scenarios
Virgin HDPE ★★★★★ (Food grade) ♻️ Recycling rate > 95% Infants and toddlers, food factories
Recycled Plastic ★★★☆ (Requires testing and certification) ♻️ Low-carbon recycling Construction site isolation, temporary fencing
PVC Steel Plastic ★★★★ (Strong weather resistance) ⚠️ Difficult to degrade Community fixed fencing 
?? Comprehensive Conclusion:
The HDPE material of plastic safety fences performs excellently in both safety and environmental protection aspects, but it should be noted that: 
For infant and toddler products, make sure to choose food-grade HDPE and physical safety certifications (such as CPSC 16 CFR 1235); for industrial fences, select UV-resistant reinforced formulas to prevent brittleness at low temperatures; for recycled material products, verify the GB/T 40006 recycled standards and harmful substance test reports.