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Hydrophilic Coatings


Hydrophilic coatings of the BaymedixTM CH series show low swelling in water and a particular hemocompatibility. These coatings are supplied either as aqueous dispersions or in mild solvent solutions, allowing simple dip or spray application processes.






Key Features of Baymedix CH: Hydrophilic Polyurethane Coatings
  • Hydrophilic surface: reduced friction, improved biocompatibility
  • Strong and durable like traditional polyurethane coatings
  • Low-swelling (< 25% by mass)
  • Retain mechanical properties when hydrated (see table for details)
  • Hemocompatibility exceeds other medical polyurethanes
  • Applicable by standard dip- or spray coating processes

Baymedix CH 110/120
Aqueous Polyurethane Dispersion
Baymedix CH 310/320
Polyurethane Solvent Solution
.
  • 40 % solids in water, dilutable
  • solvent-free
  • no external surfactants
  • low viscosity
    (<100 mPa.s / cP)
  • 30 % solids
  • mild, low-boiling solvent (toluene/
    isopropanol/
    methoxypropanol mix)
  • high viscosity (>20,000 mPa.s /cP)
  • dilutable, as application needs

Product CodeFormCondition
E-Modulus
MPA (PSI)
Tensile Strength
MPA (PSI)
Elongation
at break %
.
BaymedixTM
CH 110		.
.

.
Aqueous
Dispersion		dry, room temperature
2.6 (370)
25 (3600)
550
wet, after 24h in water
2.5 (360)
18 (2600)
450
.
BaymedixTM
CH 120		dry, room temperature
6.0 (860)
23 (3300)
370
wet, after 24h in water
7.2 (860)
21 (3000)
330
.
BaymedixTM
CH 310		.
.
.
Solvent
Solution		dry, room temperature
2.3 (330)
25 (3600)
650
wet, after 24h in water
2.7 (380)
27 (3900)
640
.
BaymedixTM
CH 320		dry, room temperature
6.0 (860)
30 (4300)
420
wet, after 24h in water
6.5 (920)
29 (4200)
440

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