Purbond is a single pack water proof adhesive. It is a polyurethane which reacts with atmospheric moisture to form a strong bond which sticks to nearly anything. With a minimum quantity of 200 litres we are able to vary the viscosity and reaction speed to some extent to better suit your production process.
Dispensing systems need to consider a way of only allowing dry air (etc) to enter the drum as the material is withdrawn to avoid moisture setting the contents off.