Polyurethane indoor athletic floors pave the way for athlets' best performance

For athletic top results in indoor ventures the floors need to have very specific properties. Most important is good point and surface elasticity. Flooring materials based on Desmodur® / Desmophen® by Bayer MaterialScience meet the international quality standards for indoor athletic floors easily. Outstanding elasticity, good rebound properties and ideal skid resistance make sure athletes can show their best performance. Additionally, the excellent wear resistance ensures a long life of the athletic floor. Optical attractiveness is another requirement that Desmodur®/Desmophen® polyurethane systems meet very well as these raw materials are compatible with all commonly used coloring materials.


A typical athletic floor structure:


A raw material selection for the coating of indoor athletic floors:

Solventfree binder systems:

	Type	Solids in %	% NCO/OH on solids	Viscosity mPas at 23°C	Characteristics
Desmodur® N 75 MPA/X	HDI Biuret	75	22.0 NCO	250	Good chemical, weather und mechanical resistances
Desmodur® VH 20 N	MDI Prepolymer	100	24.5 NCO	230	As reaction partner for elastic 2K potting compounds and coatings
Desmophen® VP LS 2068	Polyester Polyol	100	5.4 OH	950	For elastic coating systems

For waterborne sealers:

Dispersions:

	Typ	Festkörper in %	% NCO bez. Festk.	Viskosität mPas b. 23°C	Eigenschaften/Anwendungen
Bayhydrol® A 2457	OH-funktionelle Polyacrylat Dispersion	40	1.1	< 100	Härterkomponente zur Herstellung wasserverdünnbarer 2K-Polyurethan Versiegelungen von mineralischen Untergründen und Reaktionsharzen (Epoxid, Polyurethan)
Bayhydrol® UH XP 2485	Polyester- Polyurethan Dispersion	40	0.1	-	Zur Elastifizierung von wässrigen 2K Polyurethan-Versiegelungen

Polyisocyanate crosslinker for waterbased dispersions:

	Typ	Festkörper in %	% OH bez. Festk.	Viskosität mPas b. 23°C	Eigenschaften/Anwendungen
Bayhydur® XP 2451	Hydrophiliertes HDI- Polyisocyanat	100	18.6	200	Bindemittelkomponente für hochwertige wässrige 2K-PUR Bodenversiegelungen

Starting formulation:

RR 5324

Two-component polyurethane coating, elastic, self-leveling (Desmophen® VP LS 2068 / Desmodur® VH 20)