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Substrates

For traffic sign use, substrates found to be most reliable and durable are properly prepared

aluminum sheets and extrusions. Users are urged to carefully evaluate all other substrates for

adhesion and sign durability. Other substrates that may be satisfactory for proper application of

sheeting will have the following characteristics:

• Clean

• Smooth

• Flat

• Rigid

• Dimensionally stable

• Weather resistant

• Non-porous

• High surface energy (passes water break test)

Substrates with low surface energy may require additional preparation such as flame treatment,

mechanical abrasion or use of adhesion promoters prior to sheeting application.Guide sign

extrusions may be edge wrapped.Flat panels or unwrapped extrusions are to be carefully trimmed so that sheeting from adjacent panels does not touch on assembled signs.

YS Reflective Material Utility Grade Reflective Sheeting RS-P3800 Series is designed primarily for applications to flat substrates. Any use that requires a radius of curvature of less than five inches should also be supported by rivets or bolts. Plastic substrates are not recommended where cold shock performance is required. 

Imaging

YS Reflective Material Utility Grade Reflective Sheeting YS-P3800 Series may be processed into

signs by any of the imaging methods described below. Customers should test each application to

meet their criterion before mass production.

1. Screen Processing

2. Ink Jet Printing

3. Applied Cut-Out Copy

Cutting

YS Reflective Material Utility Grade Reflective Sheeting YS-P3800 Series may be cut into letters

and shapes of at least 3 inches in height and stroke widths of at least 1/2 inch.Smaller sizes are

not recommended.The sheeting may be hand cut or die cut one sheet at a time, and ban sawed

or guillotined in stacks. Whenever two or more piece are used side by side, they must be

matched to assure uniform day color and night appearance.

YS Reflective Material Utility Grade Reflective Sheeting YS-P3800 Series is designed for use on

electronic cutting machines.In order to reduce the possibility of stress cracking,the inside corner

of cut out letters and symbols should be rounded using the largest radium consistent with

appearance.Minimum Radium should be 1/8 inch on a 3 inch letter.

Plotter Cutting

Programmable knife cut (electronic cutting)

1. Flat-bed plotters can either die cut or kiss cut and offer the most consistent reliable

performance.

2. Friction Fed plotter. Kiss cut only. Success has been achieved using plotters that have 600

grams of down force and a 60° cutting blade. Additional drive wheels may need to be added to

improve tracking. An alternative procedure is to cut sheeting from the liner side. Blade force and

knife depth must be set to score but not cut through the top film. Break apart individual copy or

apply pre mask to retain spacing. 

3. Other Cutting Methods. YS Reflective Material Utility Grade Reflective Sheeting YS-P3800

Series may be hand cut or die cut one sheet at a time,and band sawed or guillotined in

stacks.Cutting equipment such as guillotines and metal shears,which have pressure plates on the

sheeting when cutting, may damage the optics.Padding the pressure plate and easing it down

onto the sheets being cut will significantly reduce damage. Maximum stack height for cutting

reflective sheeting is 1 ½ inch or 50 sheets.