The main challenge in manufacturing adhesives – whether the process is water-based, solvent-based or hot melt – is the fact that they are sticky, viscous liquids, no matter the materials. In other words, the "adhesiveness" of adhesives can make them particularly difficult to produce.
This challenge can be a truly-visceral one for operators and maintenance teams as chemical adhesives
(along with some technically non-adhesive products such as latex paint) can form a buildup, known as “skins,” on the pump’s internal passages and components.
The AODD Pump Solution
Realizing the deleterious effects that adhesive buildup can have on the operation and reliability of traditional two-piece air-operated double-diaphragm (AODD) pump designs, Wilden® offers its Chem-Fuse Diaphragm. This diaphragm has an innovative one-piece Integral Piston Diaphragm (IPD) design that encases the outer piston within the diaphragm material. That material – typically Wil-Flex™, constructed of Santoprene® – dramatically reduces the potential for any product buildup to occur during normal operation. Wil-Flex also provides excellent life and high chemical and abrasion resistance and durability, leading to longer service life and lower maintenance and replacement costs.