High pressure laminate (HPL) is a type of decorative laminate made up of several layers of Kraft paper impregnated with thermosetting resins and compacted with decorative paper and protective coating through the combined action of heat (140/150 ° C) and high pressure. for about 40/50 minutes. This determines the fluidification and the contextual polycondensation of the resins which results in a homogeneous, non-porous material with the required surface finish. The growing diffusion of laminate since the mid-20th century has pushed the various manufacturers to develop new shapes and types, to meet the various market needs.
The first high pressure decorative laminate was created in 1959 by Marc-Anton André, heir of that Johann Ludwig André who is believed to be the founder of the first German veneer company in 1851. Currently, HPL laminate is available in many possible varieties, models and designs to meet multiple individual needs.
Versatile and of great quality.
As the name suggests, high pressure laminate is modeled through the use of very high pressures, which usually range from 70 to 100 bar or 1,000 to 1,500 pounds per square inch (psi). The most common pressure range used in the process is 1,200-2,000 lb per square inch. The process involves a few steps, the first is the impregnation of several layers of Kraft paper with melamine resin. The melamine laminate resulting from this first step is then joined to a decorative layer of paper, which is then covered with a protective coating. Finally, it all applies to a base substrate. The end result is an extremely versatile high pressure laminate, which can be used for both vertical and horizontal applications.