Unfortunately, glass isn't flawless. Imperfections may exist. When inspecting your Crystal Pacific window and door glass, try looking through it rather than looking at it. If you see something that is a potential blemish, follow these general guidelines.
- Make sure the glass is completely clean on both sides by using glass cleaner.
- Stand 10 feet away from the glass and 90 degrees from the surface for a clear view.
- Inspect the glass in natural daylight avoiding direct sunlight on the surface.
- If a blemish is visible with a quick, casual glance, measure the size and read the following.
Blemishes
Where you stand, how long you view your glass, and the following parameters will help you determine if a blemish is acceptable. If you believe a blemish is unacceptable, contact your Crystal Pacific authorized dealer or message us.
| Size of Glass (Lite) | Viewing Time | Central Area* Allowed Blemishes |
Border Area** Allowed Blemishes |
Border Area Size |
| Less than 6 sq. ft. | 5 sec. | 1 | 2 | 2 in. |
| 6 – 35 sq. ft. | 10 sec. | 2 | 3 | 4 in |
| Over 35 sq. ft. | 20 sec. | 3 | 6 | 6 in |
| *If readily seen at 5 ft. **If readily seen at 10 ft. |
Note: The central area is 80% to 90% of glass pane.
| Blemish Type | Central Area* Max Size Allowed |
Border Area** Max Size Allowed |
Between Blemishes |
| Point - dirt, debris, residue, bubbles, seeds, pinholes, spots, fingerprints, etc. | 1/16 in. | 3/32 in. | 24 inches minimum |
| Linear - scratches, digs, rubs, marks, etc. | 1 in. | 3 in. | 24 inches minimum |
| Other - chips, shells | 1/4 x 1/2 in. | 1/4 x 1/2 in. | 1 per pane |
| *If readily seen at 5 ft. **If readily seen at 10 ft. |