1. Scope. This specification covers die-cut numbers and letters made from a repositionable vinyl that has a self-aligning premask spacing laminate. Typical applications for die cut numbers are for the identification of rooms, trucks or shelving. They are often used to make on-site signs.
2. Die-Cutting and Type font. The numbers and letters shall be die cut to the outside shape of each number or letter and the font shall be a sans-serif type. The numbers and letters shall be 1" [2", 3", 4", 5", 6", 8", 12", —" high].
3. Material. The material shall be a ControlTac cast vinyl Scothcal film manufactured by 3M. The film shall have a thickness of 0.0025" and an adhesive thickness of 0.0015". The 60# liner shall have a thickness of 0.005". The material shall be tamper-resistant. The label, once cured onto the application surface for 24 hours, shall not be cleanly removed without damage to the label. Background color of the film shall be white, yellow, silver or orange.
4. Physical Characteristics. The material shall have the following characteristics:
    

Property	Results
Tensile Strength	5 pounds/inch (70ºF)
Elongation	50% (70ºF)
Reverse Impact Resistance	no effect at 40-70ºF
Operating Temperature	-40ºF to 225ºF

5. Adhesive Performance. The adhesive shall be a solvent-based acrylic adhesive having the following values (using PSTC #1 at 70ºF and a 24 hour dwell):
    

Bonding Service	Ounces/Inch of Width
Alodine Aluminum	128
Glass	128
Chrome	80
Acrylic enamel	64
ABS	64
Urethane paints	64
FRP	64
Polyester	64
Acrylic	64
Lexan (not corona Treated)	64

6. Chemical Resistance. The material shall have the following resistance to exposure:
    

Chemical	Rating
Mild Acids	Excellent
Mild Alkalines & Salt	excellent
Water	excellent
Solvents (non-continuous exposure)	excellent

7. Processing. The decal shall be screen printed in accordance with 3M Instruction Bulletin #DS-XIB-1A "Screen Printing with 3M's 3900 Ink" or #3.4 "Scotchcal Series 9700 UV Inks" and cut in accordance with 3M Instruction Bulletin #DS-X1B-5 "Scoring and Cutting of 3M Scotchcal Sheeting".
8. Weathering. The vinyl or reflective numbers or letters shall be weathered using ASTM D4329 and UVA 340 Lamps. After 5,000 hours of light exposure in a QUV weathering deck the sign shall remain adhered and readable. Sample of a printed and weathered label shall remain on file at the label manufacturer and is available for review by the customer. The phosphorescent material is not recommended for outdoor use.
9. Packaging. Five [ten, twenty-five, —] of the same number or letters shall be packaged in a polyethylene bag or vacuum formed package. Each bag or package shall be identified with the item description, inspector, date, quantity and part number. Bags or packages shall then be packaged in a corrugated carton. Each carton shall contain only one label design. The outside of each box shall be labeled with the part number and/or utility code number, description and quantity.
10. Installation. The markers shall be applied to a clean, dry surface. Use a 3M Scotchbrite pad (or equivalent) to remove any surface oxidation, dirt or chalking from application surface and to rough up the surface. The surface shall then be cleaned with Surface Prep 77 or equal. Markers shall be applied at temperatures above 40ºF.
11. Premasking. To speed installation and ensure that the digits align properly, the digits use a premask. This premask helps to line the letters up properly and that they use the proper amount of inter-character spacing. The premask tape is then used to apply to the top of the digits. Using the premask the digits are "squeegeed" onto the proper surface. The premask is removed after the label is adhered to the application surface.
12. Warranty. Workmanship and quality shall be such that all lettering is sharp, legible, straight and aligned properly. Smudges, misalignment, mis-wording, mis-spelling, crooked letters, incorrect color, incorrect materials and any other problems that show poor quality and workmanship will give sufficient cause to reject any label. The products are to be guaranteed by the vendor to be free of workmanship or material defect.

ELECTROMARK'S OBLIGATION UNDER THIS WARRANTY IS LIMITED TO REPLACEMENT OF THE PRODUCT. OUR PRODUCT IS SOLD WITHOUT ANY WARRANTY OF MERCHANTABILITY AND WITHOUT ANY WARRANTY THAT OUR PRODUCT IS GOOD FOR ANY PARTICULAR PURPOSE. OUR PRODUCTS ARE SOLD WITH THE UNDERSTANDING THAT THE USER WILL DETERMINE THEIR ADAPTABILITY FOR HIS INTENDED USES. WE ARE NOT BOUND BY ANY OTHER WARRANTY, EXPRESSED OR IMPLIED. UNDER NO CIRCUMSTANCES ARE WE LIABLE FOR ANY LOSS, DAMAGE, EXPENSE OR CONSEQUENTIAL DAMAGES OF ANY KIND ARISING OUT OF THE USE OR INABILITY TO USE OUR PRODUCTS.