Primed Fabric Vs Un-primed Fabric – Burning Behavior & Mechanical Properties

primed fabric vs un primed fabric

The use of Primed Fabric Vs Un-primed Fabric plays an important role in hose manufacturing. It is vital to understand the difference between the two with respect to their burning behavior and mechanical properties.

When you use “primed” fabrics, essentially, the fabrics have been dipped in a water-based adhesive solution, and then dried. This process is done after the washing and the heat-setting.

A lot of Hose Companies use “un-primed” fabrics in the or processes to cut costs. The price different is usually between $1 to $1.2 per square meter, between the un-primed and the primed fabrics.

The data that we have is that – a primed fabric will give you between 300% to 400% better bond strength between the Rubber and the Fabric, as compare to un-primed fabric.

The Industry Standards are in the range of 1400 N/m adhesion between the Rubber and the Fabric.

An un-primed fabric gives a reading of anywhere between 800 N/m and 1200 N/m. (usually the fabric tears away freely from the rubber, showing that the bond is not cohesive).

See the video demonstration here

A primed fabric however, as mentioned above, gives in excess of 4000 N/m (usually rubber tears along with the fabric during testing, showcasing excellent ‘cohesive’ ply-adhesion.

See the video demonstration here

At Shore Auto Rubber Exports Pvt. Ltd., we proudly use only Primed Fabrics, sourced from leading European companies. This ensures that we supply the most Robust Hoses, well-suited for the demanding field applications.

Kishore Keswani
Author Details
Kishore formed the company in September 2003 to on the Silicone Hose exports of Auto Steel & Rubber Industries Pvt. Ltd.. He holds a vast experience in the manufacturing of hoses. He has set up a base of customers (Exports 99%) for Shore Auto Rubber Exports Pvt. Ltd. to do a turnover of $6.5 million (2017-18).). Kishore has graduated from Purdue University, West Lafayette, IN 47906 (USA) & holds a bachelor’s degree of Science in Industrial Engineering. Kishore is a member of the Institute of Industrial Engineers and Chrysalis Entrepreneur Forum.