Backing cards for lateral flow rapid diagnostic test kit is usually made of PS or PVC materials with self-adhesive, with main features of good flatness, strong adhesive and ageing resistance. Compared to the common adhesive used on the market, our adhesive is a stronger type, though only small amount of adhesive coated, 20g/square meters, whereas other backing card producers have to apply 38g/squre meters on it. As a result, it will significantly lessen the cleaning time and frequency of the strip cutter and reduce the defects, then further benefit a smooth continuous large scale production, especially those engaged a lot of automatic instruments. Our adhesive is non-reactive, non-volatile with a stable shelf-life of 2.5 years.