Besides, these formulas were developed for a specific goal in cooperation with University of Padua and the research center of department of organic chemistry, University of KA 'Foskari Venetion.
In this regard, durability on compression, and also its module of elasticity were properly intended effectively to support behavior of wood material (beams, floors, bars, etc.). At influence of the stretching tension owing to a bend, the pitch formula with unfairly high durability on compression will bring to physical activity at placement on the wooden material "more flexible" and, of course, is exposed to tension loading.
On the other hand, "productivity" in above the mentioned pitches also more than enough for use to destination is substantially guaranteed.
Pitch systems were developed with an opportunity to affect rheological opportunities (for example thickeners and tiksotropny), so that to reach optimum final viscosity without any damage somehow, development needs durability at compression.