3M™ CRYSTAL Dusted and Frosted Glass Finishes

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3M Scotchcal Special Effects Film - Series 7725SE is intended for making prespaced, cut graphics on electronically controlled, friction–fed or flatbed cutters. 

A transparent liner prevents moisture absorption, and lays flat for easier assembly of multicolor special–effect graphics, from dusted and frosted crystal to fluorescent. This film is perfect for creating window graphics and internally–illuminated displays applied to flat, clear surfaces.  

Features

• Achieve the look of sandblasted or etched glass

• Create custom cut shapes to promote your brand and design

• Provide privacy in interior or exterior spaces while keeping an open feel

Application & Uses:

 • Dusted and frosted crystal films are intended for creating window graphics and internally-illuminated displays applied to flat, clear surfaces 

• Fluorescent films are intended for screen printed, die cut, hot stamped, or electronically-cut graphics where high visibility markings and weather resistance is needed 

• Fluorescent films can be used on flat surfaces with or without rivets 

• For interior and exterior applications   

Characteristics of Dusted and Frosted Crystal Films 

• Durable, dimensionally stable, translucent film 

• Uniform color in both reflected and transmitted light 

• Low gloss eliminates glare 

• Dusted crystal film 7725-314 has the uniform appearance of etched glass. 

• Frosted crystal films 7725-323, -324, -326, -327 and -331 have the uniform appearance of sand-blasted glass.  

Characteristics of Fluorescent Films

• Durable, dimensionally stable, glossy opaque film 

• Activated by exposure to near-ultraviolet visible light 

• Does not fluoresce under invisible ultraviolet light (black light) 

Minimum Cutting Heights

The minimum height recommended for text when using film series 7725SE is 0.375 inch (9.5 mm) for dusted and frosted crystal film and 0.5 inch (12.7 mm) inches for fluorescent film. This is based on cutting and weeding evaluation using upper case Helvetica medium copy. Users are encouraged to do their own evaluation for the specific heights and design detail required for a particular job. The variable characteristics of electronically controlled cutting equipment warrants that users verify their specific requirements.  

Factors that affect cutting quality and capability that the user needs to consider are:

1. Sharpness of knife blade: dull blades create a serrated look on the edge of the cut film. 

2. Weight on knife blade: 

• Ideal weight will result in a slight scoring of the liner. 

• Too light a weight will cause incomplete cutting through film and adhesive. 

• Excessive weight results in cut liner, blade dragging which will accelerate blade wear. 

3. Temperature and relative humidity are minor considerations, but extremes, as well as rapid fluctuations, are to be avoided. 

4. Stock film should be stored in the same environment as the cutting equipment. 

5. Stroke width of characters, style of serifs or extensions and small details of scanned or digitized artwork. 

6. Minimum recommended stroke width is 0.04 inches (1.0 mm) when applied film is exposed to cleaning or other physical stress.  

Weeding

The excess film should be weeded (removed) as soon after cutting as practical. This is to minimize the effect of possible adhesive flow 24 or more hours after cutting. 

Property Value

Tensile strength (minimum) 

Dusted & Fluorescent

Frosted at 73°F (23°C) 

5 pounds/inch (0.9 kg/cm) 

3.5 pounds/inch (0.6 kg/cm) 

Applied shrinkage 0.015 inch 0.3 mm 

Service temperature range 20° to +175°F -29° to +80°C 

Adhesion

Adhesion value is 24 hours after application. 

Substrate Value

Acrylic 4.0 pounds/inch (0.7 kg/cm) 

Polycarbonate 4.0 pounds/inch (0.7 kg/cm) 

Glass 4.0 pounds/inch (0.7 kg/cm) 

Chemical Resistance

• Resists mild acids, mild alkalis, and salts 

• Excellent water resistance 

Flammability

Film series 7725SE has been tested for flame spread per ASTM E84-95, “Surface Burning Characteristics of Building Materials,” and the results show that the material meets the requirements of National Fire Protection Association Class A as defined in NFPA 101, “Life Safety Code.”