Desmodur N 75 Germany or Hardener Isocyanate is an aliphatic polysaccharide based on hexacetylene diisocyanate (HDI) which is used as a second component of polyurethane resins. This non-volatile substance is flammable and colorless and is often used as a Solvent due to its high viscosity.
What is Hardener?
Hardener is a reactor or catalyst in a chemical reaction that occurs during the mixing process, usually used to increase resistance or as a mixture repair agent. Due to their strength, adhesion, flexibility and waterproofing properties, they are usually added to epoxy resins as a second component.
Properties and features of Desmodur N 75 Germany
It has good chemical resistance to Solvent and adhesion of various layers of paint, is flexible and can be dissolved in esters, ketones and aromatic hydrocarbons. It is also considered as a hardener (one of the hardening components) for lightweight two-component polyurethane coatings with high resistance to chemicals and weathering while maintaining its gloss and excellent mechanical properties.
The use of the Desmodur N 75 Germany
This material is used in car and industrial polyurethane paints to withstand weather conditions on metal surfaces and also as a corrosion protector for wood, furniture, plastic, etc.
Conditions for keeping the Desmodur N 75 Germany
This material should be stored in a dry, cool and well-ventilated warehouse. Barrels containing German N75 diesel must be closed and kept away from contact with sources of heat, moisture and electric sparks.
In the end, it is recommended that people wear special safety masks, goggles and work clothes when in direct contact with this substance, in order to reduce the risks and harms of this substance as much as possible. Because its contact with the skin is harmful because it contains isocyanate, which increases the risk of absorption of xylene and ethyl benzene through the skin, and if it comes in contact with the skin, it may cause allergies.
