 |
POLYCARBONATE HOT
TUBE
(SPA) WINDOWS
Anti-Fog Coating with #2009-68-2A&B) |
Client required an anti-fog coating for their spas panels. The inside portion of
the
of polycarbonate windows was coated with Hydromer #2009-68-2.
The
working conditions of control topside: -4°F to 104°F with relative
humidity of
100%.
MATERIAL:
2009-68-2A
(2276-169) lot No. (H06-06-14)
PROCEDURE:
|
CLEANING
1. Cleaned the PC panels with isopropanol/lint free cloth. 2. Air dried for five minutes. |
COATING
1. Masking tape applied around polycarbonate panels. 2. Air brushed (25psi) diluted 2009-68-2A&B. Air dried for approximately 5-10 minutes.
Note:
Diluted 2009-68-2A&B
2009-68-2A&B(95:5) = 2.5grams
Ethyl
Lactate = 4.0grams
Cyclohexane = 3.5grams 3. Cured at 85°C (185°F) for 6.0 hours. |
CONCLUSION: One coated
spas panel was tested on the steam
chamber set at 50°C.
No
fogging was detected after twenty hours exposure.
Photograph
of the evaluation are shown below.
|
Figure
1: Steam chamber after one hour.
 |
Figure 2: Steam chamber after
three hours @ 50°C.  |
|
Figure 3: Steam chamber after
eighteen hours @ 50°C.  |
Figure 4: Steam
chamber after twenty hours @ 50°C.  |
Please contact:
Petia Tzatzeva
Industrial Coatings Specialist
HYDROMER, INC.
35 Industrial Parkway
Branchburg, NJ 08876 ,USA
Tel: 908-722-5000
