2 0 1 3 P R O D U C T G U I D E VIRACON PRODUCT GUIDE 2013 ...

SILK-SCREEN
ceramic frit coverage rules
All maximums listed are for any one square foot area of a glass unit.
Type Color Coverage
Silk-screen pattern Opaque, except V175 White 60% Maximum
Silk-screen pattern V175 High Opacity White 80% Maximum
Silk-screen pattern Translucent 80% Maximum
Full coverage translucent frit**
(Frosted, non-pattern)
Translucent 100%
Spandrel Opaque 100%
**Not available for interior applications and not available with coatings on the same surface. Also, when translucent frit is used as full coverage, inherent characteristics
may make this product unsuitable for vision areas. These characteristics include slight variations in color and uniformity, pinholes or streaks.
When considering translucent frits for spandrel applications note that these areas may be prone to condensation formation on interior
glass surfaces. Over time, this may result in a visible film formation. Therefore, consideration must be given to the suitability of these
products in spandrel applications. For these applications, the translucent frit may only be applied to non-exposed surfaces.
See silk-screen inspection guidelines and manufacturing tolerances on page 124 for additional information.
MOIRé PATTERN
Moiré is an optical phenomenon that may present itself as a “wavy, rippled or circular” pattern under certain conditions. Moiré patterns
can be created whenever one semi-transparent object with a repetitive pattern is placed over another. The moiré pattern is not a glass
defect, but created when the images do not align. For additional information, please review Viracon’s Moiré Pattern Tech Talk on our
website viracon.com.
VIRACON // COMPONENTS & ENHANCEMENTS
027