TPU Primer

Guangdong Yrbest High Polymer Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of tpu primer in China. Welcome to buy durable tpu primer at competitive price from our factory. If you have any enquiry about quotation and free sample, please feel free to email us.

Expanded thermoplastic polyurethane, commonly known in the industry as E‑TPU "popcorn foam," is being used more and more widely in footwear manufacturing. However, the challenge of bonding it has always troubled many manufacturers. To address this, we have specifically launched E‑TPU (supercritical PU) Primer 208F, designed to solve the bonding pain points of this type of material. Whether for aliphatic or aromatic E‑TPU, it delivers stable surface modification, effectively overcoming the bonding difficulties caused by low surface energy and closed‑cell structure-problems that traditional processes struggle to resolve.

The core principle of this specialized primer is to activate and modify the otherwise inert foam surface through chemical activation and mild, controlled surface etching, making it more suitable for adhesive application. After treatment, adhesive wettability is improved, mechanical interlocking at the interface is stronger, and bond strength is significantly enhanced. For foam components that require both light weight and reliable bonding, this treatment step is essential.

E‑TPU Primer 208F offers strong process compatibility, simple operation, and stable results, making it well‑suited for high‑volume production lines. It is mainly used in applications such as athletic shoe midsole bonding, full shoe assembly, and high‑performance foam component lamination, enabling stable adhesion between E‑TPU and textiles, rubber, and other polymer materials.

Using E‑TPU 208F in footwear production effectively increases bond strength, reduces delamination‑related rework, and improves the durability of finished products. As foam materials are increasingly used in high‑end athletic shoes, protective gear, and functional industrial components, this primer also helps support lightweight designs, ensuring that advanced materials deliver more reliable and long‑lasting performance in real‑world use.

1. After cleaning the shoe material surface, evenly apply this primer using a brush or cloth.
2. Drying time: Dry in an oven at 55±5°C for 2–4 minutes before applying the adhesive.
3. Apply the adhesive evenly and completely, avoiding insufficient coverage or excessive buildup.