Puretan 50 is a polyurethane for building uses that waterproofs and insulates at the same time. In addition, it is a continuous coating that can be applied in the desired thickness and is obtained by spraying in place with high-tech machines. Puretan 50 is mainly applied for polyurethane foam overlays, asbestos encapsulation, asbestos cement products and Eternit remediation. In fact, some studies have shown that asbestos cement surfaces, exposed to atmospheric agents in both urban and rural environments, are subject to corrosion phenomena that lead to the release of asbestos fibers into the air, resulting in environmental pollution and health risks for people. For the solution of asbestos encapsulation, less complicated and expensive, Tecnopur intervenes with its own specialized personnel and with its own means to recover the asbestos cement roofing, by applying on site a layer of spray polyurethane foam with which the asbestos encapsulation is obtained. Puretan 50 represents the most suitable solution for many applications, also by virtue of the following advantages

consolidation with improvement of the walkability and mechanical resistance of the slabs;

possibility to intervene quickly and without any interaction with working activities;

encapsulation of asbestos cement eliminating all the problems that this material creates in relation to health and the environment, as the asbestos fibers remain completely encapsulated in the layer of polyurethane foam applied directly on the roof;

no production of toxic and harmful waste, nor need to wash the sheets;

it is a thermo-impermeable product;

it is the only homogeneous product whose molecular structure makes it possible to have simultaneous waterproofing and continuous thermo-acoustic insulation;

excellent resistance to compression and traction;

rapidity of application;

resistance over time;

elimination of thermal bridges as it is applied without interruption of continuity;

remarkable vapour permeability;

elimination of the barrier to vapors;

adaptability to any shape of the laying surface;

no difficulty in application in correspondence of downpipes, skylights, towers, connections with vertical walls;

excellent adhesion such as to form a single body with almost all materials: iron, cement, brick, fiber cement, wood, bitumen, glass and fiberglass;

resistance to acids, solvents and hydrocarbons;

resistance to marine and industrial atmosphere;

unassailability by fungi and microorganisms;

possibility of easy recovery and repair in case of accidental damage.