Customer

Self-healing polyurethane systems for wood coatings


Daily tear and wear can quickly tarnish a piece of valuable furniture. Wood coatings based on our 2K waterbased dispersions are "self-healing", meaning that abrasive forces that normally cause small scratches would merely have a deforming effect on the polyurethane coating. The shape memory effect causes the polymers to flow back to their original shape, the deformation disappears and there are no scratches on the surface. This effect is greatly enhanced at temperatures of 50-60° C.

Products for self-healing systems:

Type
Solids in %
Viscosity
mPas at 23°C
% NCO or OH
on solids
Characteristics
Bayhydrol® U
XP 2750
Aliphatic polycarbonate ester-polyurethane dispersion
43
1000
3.6 OH
for hard-elastic and scratch resistant films, good adhesion on plastics, solvent-free
Bayhydrol® U
XP 2755
Polyester - Polyurethane dispersion
38
3000
3.0 OH
in combination with aliphatic poly-isocyanates, good transparency, wood warmth, high hardness
Bayhydur®
XP 2655
hydrophilic aliphatic poly-isocyanate
100
3500
21,3 NCO
crosslinker for waterborne systems, easy dispersibility

Get more information on self-healing coatings in general in our Technologies Section.

Presentation: "Self healing systems for Wood Coatings"

Presentation: "A combination of strong characters Polycarbonatediols Desmophen® C"

Brochure:

. Raw materials for Wood and Furniture Coatings


back to solventbased raw materials for wood & furniture coatings
back to waterbased raw materials for wood & furniture coatings

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