Polyurethane Primer

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

In today's highly competitive footwear industry, if you want to make durable, high-quality shoes, the first step is to get surface preparation right-it's the foundation and the key. Polyurethane Primer 211 is specifically designed to tackle the toughest hard-to-bond substrates. It can be used to treat PU/PVC shoe sole and upper materials; after treatment, the originally difficult-to-bond surfaces allow adhesive to spread more evenly, enabling adhesive to grip the material during bonding.

When the treatment agent is evenly applied to the surface, its excellent penetration function forces out oils and other additives, while its cleaning function first removes stains from the substate surface, ensuring that the adhesive will not fail due to oils seeping from the deep material. Slight corrosion roughens the surface, increasing activation energy and making it easier for adhesive to "grab" onto it, thereby achieving deep interlocking after bonding.

To get the best results from polyurethane primer 211, one step is essential: oven drying after application. Only when the solvent has completely evaporated will the primed surface be fully activated, maximizing the adhesive's bond strength and reliability. And this primer is very convenient-ready to use straight from the container with no mixing required. On high-volume production lines, it ensures consistent results batch after batch, while simplifying workflow and saving time.

For midsole and outsole bonding, upper assembly, and shoe forming involving PU materials, this polyurethane primer 211 provides stable bonding. It effectively prevents bond failure, enhances moisture and heat resistance, and helps extend product service life. By using it before adhesive application, whether for athletic shoes, casual shoes, outdoor footwear, or fashion shoes, you can achieve reliable, high-strength bonds.

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.