Independant Supagard Polysilazane Glass Coating Longevity Tests
The testing was conducted by FERRO Surface Technology llc, an independent laboratory based Florida, USA. They used the following methodology to carry out the longevity tests:
|
|
Hours |
Gloss |
L |
A |
B |
Contact Angle |
0 |
91 |
87.4 |
-1.3 |
-0.3 |
108 degrees |
500 |
91 |
87.4 |
-1.3 |
-0.1 |
108 degrees |
1,000 |
91 |
87.4 |
-1.3 |
0 |
107 degrees |
2,000 |
91 |
87.4 |
-1.3 |
0 |
107 degrees |
3,000 |
90.5 |
87.2 |
-1.3 |
0 |
104 degrees |
4,000 |
90.5 |
86.8 |
-1.3 |
0 |
102 degrees |
5,000 |
90.25 |
85.8 |
-1.2 |
0.1 |
98 degrees |
6,000 |
90 |
85.4 |
-1.2 |
0 |
92 degrees |
Each 400 – 500 hours is equivalent to 6 months of Florida sun, humidity and rain fall.
Conclusion
The contact angle, a measure of hydrophobicity, dropped to 92 degrees after 6000 hours (approximately 6 to 7 years) meaning that the coating was beginning to degraded. It was determined however, that the coating was 100% effective from 0 to 5000 hours (approximately 5 to 6 years) in conditions equivalent to Florida's tropical climate.
Independant Supagard Polysilazane Glass Coating Scrub Test
The testing was conducted by FERRO Surface Technology llc, an independent laboratory based Florida, USA. They used the following methodology to carry out the longevity tests:
|
|
Cycles |
0 |
500 |
1,000 |
2,000 |
5,000 |
Uncoated paint panel |
78 |
78 |
78 |
77 |
75 |
Universal cleaner (PH7) to coated panel |
107 |
107 |
107 |
106 |
106 |
Alkaline cleaner (to PH8.5) to coated panel |
107 |
107 |
105 |
102 |
99 |
Acidic cleaner (to PH1.3) to coated panel |
107 |
107 |
107 |
105 |
104 |
Conclusion
The performance of Supagard's Polysilazane Glass Coating was virtually unaffected by the PH of the solutions. Hydrophobicity was also largely unaffected by repeated scrubbing, even up to 5000 cycles.