Overview
Polyethylene flakes are recycled or virgin polyethylene processed into flake form for industrial applications. They are categorized by density (LDPE/LLDPE/HDPE) and melt flow characteristics. The flake morphology provides advantages in compounding and coating applications due to improved dispersion compared to pellets. Global production exceeds 5 million tons annually, with major suppliers in Asia, North America, and Europe. The material is favored for its balance of chemical resistance, mechanical properties, and cost-effectiveness in corrosion protection systems.
Physical and Chemical Properties
The material exhibits excellent resistance to acids, alkalis, and most solvents below 60°C. HDPE flakes typically show higher tensile strength (20-30 MPa) compared to LDPE (8-20 MPa). UV resistance requires additive packages for outdoor applications. Thermal properties vary significantly between grades. HDPE maintains dimensional stability up to 120°C, while LDPE becomes pliable above 80°C. The dielectric strength (18-22 kV/mm) makes it valuable for electrical insulation applications.
Main Applications
In anti-corrosion coatings, polyethylene flakes create barrier layers in epoxy/polyurethane systems for chemical tanks and pipelines. Flake sizes of 0.5-3mm are typical, with loading rates of 15-30% by weight. The construction industry utilizes them in geosynthetic clay liners and waterproofing membranes. Recent developments include use in 3D printing filament production and as impact modifiers in thermoplastic composites.
Safety and Storage
While non-toxic, processing may generate inhalable dust requiring NIOSH-rated particulate filters. Static accumulation during handling necessitates grounded equipment. NFPA ratings are Health: 1, Flammability: 1, Reactivity: 0. Storage life exceeds 5 years in original packaging. Bulk storage requires temperature control to prevent agglomeration. Compatibility testing is recommended when blending with other polymers or additives.
B2B Procurement Guide
Industrial buyers should specify: 1) Density classification, 2) Melt Flow Index (MFI) range, 3) Color requirements, 4) Maximum moisture content (typically <0.1%). For coating applications, ask for particle size distribution data. Container load quantities (20-25 tons) typically offer 10-15% cost savings versus bagged shipments. Quality certifications to request include ISO 9001 and FDA compliance (for food-contact grades). Lead times vary from 2-8 weeks depending on customization.
Related Manufacturers
- 主营：防腐漆、防腐蚀涂层、防锈环氧涂料、玻璃鳞片、玻璃环氧鳞片、防腐胶泥涂料、内衬防腐胶泥、抗渗透防锈涂料、钢结构防腐涂料
- 主营：环氧富锌底漆、环氧云铁中间漆、环氧富锌面漆、丙烯酸聚氨酯面漆、丙烯酸聚氨酯面漆各色、高氯化聚乙烯面漆、冷喷锌底漆、钢结构防锈油漆、氯化橡胶面漆、凉凉胶隔热漆、沥青改色剂、重工业防腐涂料、环氧类油漆、桥梁专用油漆、环氧铁红底漆、环氧红丹防锈漆、环氧煤沥青防腐底漆
- 主营：om-5防腐涂料、8710饮用水涂料、有机硅高温漆、丙烯酸聚氨酯漆、聚氯乙烯含氟荧丹漆、环氧玻璃鳞片涂料、乙烯基玻璃鳞片涂料、水性丙烯酸面漆、环氧陶瓷涂料、环氧自流平面漆、无溶剂环氧涂料、氟碳漆、耐油导静电涂料
- 主营：碳化硅修补剂、金属修补剂、钢质修补剂、聚乙烯、铁质修补剂、铝质修补剂、铜质修补剂、轴承位修补剂、轴磨损修补剂、高温胶水、高温修补剂、皮带胶、快速橡胶修补剂、金属导电胶水、电泳导电修补剂、搪瓷修补剂、搪瓷反应釜修补剂、高温搪瓷釜修补剂、高温密封胶、铸钢修补剂、耐磨陶瓷颗粒胶、导轨修补剂、模具修补剂、高温环氧树脂胶水、PP胶水、PU胶水
- 主营：sbs卷材、卷材app、油毡瓦、聚氨酯、卷材eva、号沥青、贴缝带、外墙面、pvc自黏、pvc防水、10#沥青、防水sbs、彩钢顶、玻纤瓦、抗裂贴、沥青瓦、沙皮瓦、eva防水、tss防水、hdpe防水、卷材p类、卷材l类、isbs防水、卷材sbpe、pe膜防水
- 主营：环氧富锌底漆、有机硅耐高温漆、防火涂料、丙烯酸聚氨酯面漆、氟碳漆、钢结构漆、环氧云铁中间漆
- 主营：云铁中间漆、富锌底漆、沥青漆、玻璃鳞片胶泥、聚氨酯面漆、氰凝防水防腐
- 主营：环氧陶瓷防腐管、3PE防腐钢管、涂塑钢管、聚乙烯防腐螺旋管厂家、燃气钢管、环氧树脂防腐钢管、无缝钢管、玻璃钢防腐钢管、直缝埋弧焊钢管、防腐无缝管、IPN8710防腐管、玻璃钢防腐、环氧煤沥青防腐钢管、钢塑复合钢管、国标给水钢管、化工排污管道、涂塑复合钢管、防腐螺旋钢管、环氧树脂涂层管
- 主营：涂塑钢管、保温钢管、螺旋钢管、聚乙烯、3PE防腐钢管、涂塑复合钢管、消防涂塑钢管
- 主营：地坪漆、环氧地坪漆、自流平地坪漆、聚氨酯罩面清漆、丙烯酸聚氨酯面漆、氯磺化聚乙烯漆、玻璃鳞片胶泥、自流平面漆、环氧彩砂面漆、环氧自流平面漆、环氧富锌底漆、防锈漆、防腐漆、环氧云铁中间漆、氟碳面漆、金属氟碳漆、重防腐涂料、氟碳漆、环氧腻子、环氧煤沥青漆
- 主营：重防腐涂料油漆、水性防腐漆、氟碳漆、脂肪族聚氨酯面漆、丙烯酸聚氨酯面漆、聚酯机械漆、环氧富锌漆、环氧防腐面漆、有机硅高温漆、氟碳涂料、环氧白色底漆、改性重防腐涂料
- 主营：无溶剂环氧陶瓷涂料、防腐工程施工、环氧富锌漆、高温玻璃鳞片胶泥、玻璃鳞片胶泥、乙烯基玻璃鳞片胶泥、乙烯基玻璃鳞片涂料、烟囱耐高温涂料、钢结构专用涂料、环氧涂料、环氧锌黄底漆、环氧多功能底漆、有机硅涂料、彩钢翻新漆、水性工业漆、8710防腐涂料、污水管道专用涂料、化工管道专用涂料、醇酸树脂漆、陶瓷涂料、烟囱涂料、环氧煤沥青涂料
- 主营：钢护筒、蒸汽管、柱钢管、聚乙烯、缝钢管、衬塑管、消防管、护筒管、循环水、无缝管、法兰连、防腐管、法兰板、喷塑管、腐钢管、防腐涂、法兰盘、钢板管、钢结构、气管道、焊钢管、支撑管、铝法兰、打桩管、焊卷管、螺旋管
- 主营：防水sbs、玻纤瓦、tpz防水、聚氯乙烯、聚酯复合、瓦油毡、bac自粘、卷材sam、eva防水、彩钢瓦、卷材tpo、k11防水、高分子、pvc防水、沥青瓦、eva自粘、pet自粘、hdpe防水、fyt1防水、tpob防水、卷材包工、水泥路面、彩油毡瓦、水卷卷材、反应粘结
- 主营：ppc防水、保护层、玻纤瓦、聚合物、沙皮瓦、水泥浆、保护膜、网带pet、隔离层、外墙砖、封檐板、防水板、乙烯pvc、乳胶漆、隔热漆、雨水管、雨水槽、地坪漆、落水管、沥青sbs、排水管、贺德克、落水槽、油毡瓦、钢结构