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From the cutting process until application, retroreflective sheeting cut into smaller sheets or panels for traffic signs should be stacked on a smooth, flat surface. To keep the
cut sheeting flat, it is advisable to place a heavy plate on top of the stack, ensuring that the whole of
the cut surface is covered. (Fig.3) |
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No more than 50 sheets or traffic sign panels should be stacked one on top of another. No more than 24 hours should elapse between cutting and application or screen printing. During this time the sheeting should be covered with a plastic bag to avoid humidity.
The handling of retroreflective sheeting generates a lot of static electricity which attracts particles of dust and dirt to the surface. It is therefore important to keep the working environment as free as possible of dust and dirt. |
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• When cutting the material with a cutter, the cutter blade should be clean, sharp and free of dirt or grease. Sheets should preferably be cut one by one.
The cutter blade should enter the surface at an angle of between 10º and 30º. (Fig.4) |
• If a guillotine is used, no more than 5 sheets should be cut at a time and the temperature at the moment of cutting should not be lower than 20ºC.
• If the sheeting is being cut with a plotter, its surface should be smooth and free of wrinkles to ensure that the blade is not fouled.
• For sheeting to be knockout printed with text or symbols, no more than 12 hours should elapse between cutting and application. All the panels containing the same text or symbol should be stacked one on top of another on a smooth, flat surface, preferably beneath a heavy plate which covers the entire surface of the sheeting. |
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