Product Description
Dow 1702 is a ionomer resin supplied by POLYVALA (Shanghai Polyvala Plastics Co., Ltd.). It belongs to the 沙林SURLYN family — 钠离子型 emaa 离聚物.
Key Specifications
- 密度 0.950 g/cm³ ASTM D792 MFR (190°C/2.16kg) 14.0 g/10min ASTM D1238 熔点 (DSC) 93°C ASTM D3417 维卡软化温度 65°C
Typical Applications
高速挤出涂层：纸 / 铝箔 / 塑膜 耐高温强密封层 食品包装膜：零食 / 坚果 / 冷冻肉 / 油脂食品（耐油、防漏、高速） 多层共挤热封层：与 PA/EVOH/PET 复合，强密封层（非易撕） 流延膜 / 片材：高透明、高韧性、耐磨包装
Key Features
- 超高流动性（MFR 14） 远高于 1652 系列，挤出速度极快
- 薄涂均匀
- 模头清洁容易，适配超高速线 超强热粘强度（Hot Tack） 钠离聚物特性：低温起封
- 热粘强度极高
- 污染封合能力强（袋内有油 / 水 / 粉也能封牢）。 优异低温韧性 脆化温度 < -76°C，冷链 / 冷冻包装不裂。 加工宽窗口 160–235°C，适配流延
- 挤出涂层
Sourcing with POLYVALA
- Flexible MOQ — single pallet to full container, mixed grades welcome
- Batch certificate / COA provided with every shipment
- Export documentation and consolidated freight from Shanghai port
- Sample available on request for evaluation
Note: Technical data above is compiled from manufacturer documentation for reference. Final specifications will be confirmed against the actual batch certificate.
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