High performance parquet coatings with Desmodur®/Desmophen® systems

Typical formulations for high performance two-component-polyurethane parquet coatings are based on highly branched polyester polyols, such as Desmophen® 800 or Desmophen® 1100 and crosslinkers of the Desmodur® L or Desmodur® E range.














Select products:

	Type	Solids in %	% NCO / OH on solids	Viscosity mPas at 23°C	Characteristics
Desmophen® 800 MPA	Polyester polyol	85	8.8 OH	11000	For hard and chemical resistant coatings with good impact resistance, toughness and wear resistance
Desmophen® 1100	Polyester polyol	100	6.5 OH	30500	As one-component or in combination with other Desmophen® grades
Desmophen® 1700	Polyester polyol	100	1.3 OH	17500	For highly elastic two-component coatings
Desmodur® L 67 BA	Aromatic polyisocyanate prepolymer	67	17.8 NCO	600	For two-component air drying formulations
Desmodur® E 1361 BA	Aromatic polyisocyanate prepolymer	61	11.1 NCO	500	For one- or two-component systems, durable protection against moisture, oils and solvents, as well as aggressive chemicals
Desmodur® E 1160	Aromatic polyisocyanate prepolymer	60	9.0 NCO	550	For one- or two-component systems, durable protection against moisture, oils and solvents, as well as aggressive chemicals
Desmodur® E 1660	Aromatic polyisocyanate pepolymer	60	8.8 NCO	1600	Reaction partner for one or two component systems, fast drying moisture curing coatings
Desmodur® E XP 2605	Aromatic polyisocyanate prepolymer	50	9.0 NCO	200	For fast drying moisture curing one-component coatings, very reactive

A sample starting formulation:

RR 5850	Transparent, glossy two-component parquet coating (Desmodur® L 67/ Desmophen® 800 + 1100)
RR 5861	Transparent, glossy one-component parquet coating (Desmodur® E 1361 MPA/X)
RR 5856	one component clear coat (Desmodur® E 1361, Desmodur® E 1660)

Moisture-curing one- and two-component polyurethane systems for parquet coatings

Desmodur® E grades are particularly well suited for transparent wood coatings. Due to their outstanding resistance to wear and non-slip characteristics they are the raw material of choice for coatings applied in public buildings, dance halls and multi-purpose halls.
Coatings based on Desmodur® E cure by reaction with moisture. Drying time, development of hardness and application properties are strongly dependent on ambient conditions like air humidity. Therefore, Bayer MaterialScience offers a broad range of suitable products for the use in every region of the world and any requirement. For example Desmodur® E 1361 BA is the best choice for central European conditions, on the other hand the slowly drying Desmodur® E 1160 is suggested for those regions, where temperature and / or humidity are high. Desmodur® E 1660 may be used for faster drying formulations.

Brochure: Prepolymers - Products & Applications

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