CRYLEX ® HIGH IMPACT ACRYLIC
Crylex sheet is a preferred material for rigid formed sign faces when both weatherability and impact strength are required. It provides the needed toughness to withstand typical in-shop handling, yet retains its color, clarity and resistance to harsh outdoor environments.
FABRICATION Sign companies have found high impact Crylex sheet to be the easiest of the rigid sign plastics to thermoform, machine and handle, owing to its balance of physical properties. Crylex sheet can be routed, sawed, punched and sheared with standard equipment and procedures recommended for conventional acrylic sheet. Painting, silk-screening, vinyl application and other decorative techniques are easily accomplished. Crylex sheet can also be readily joined to itself or other materials by adhesive or solvent bonding. Mechanical fastening may be successful depending upon procedures and end use. CLEANING The Crylex acrylic sheet surface offers good resistance to a variety of household cleaners and other chemical environments. Final parts should be tested with specific chemical exposure appropriate to the end-use application. To clean, wash with mild, non-abrasive soap or detergent and rinse with clean water and a dry, soft cloth. To prevent water spots, dry thoroughly with chamois or clean cloth or sponge. Avoid cleaning in direct sunlight to prevent streaking. Do not use abrasive cleaners.
PAINTING Crylex sheet can be painted and silkscreened with standard sign paints recommended for acrylic sheet. Impact additives may be used to maximize toughness if desired. Spray and screen paints can be removed with a 50/50 mixture of VM&P Naptha in combination with Lacryl® 205-T or Solvent 100. Remove solvent from sheet quickly to reduce the possibility of attack. Follow the manufacturer’s guidelines for proper painting and paint removal procedures. THERMOFORMING Crylex sheet can be formed to crisp, exacting detail with excellent print registration over a wide temperature range from 275–375°F. The recommended forming temperature is 325°F. Part removal temperature should be no greater than 180°F. Crylex sheet forming cycle times can be as much as 30% faster than continuous cast impact-modified acrylic. Crylex sheet has been successfully formed in hot air circulating vertical ovens; sheet should be tenter framed, or clamped on all four sides, with time and temperature carefully monitored and controlled.
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