STORAGE AND HANDLING
Plexiglas® acrylic sheet is shipped in corrugated fiber cartons or in wood-reinforced fiberboard boxes having a gross weight of 400 pounds or more or on pallets weighing approximately 2,000 pounds. All Plexiglas® G and MC acrylic sheets are boxed in standard packages. The number of sheets in each package depends on the size and thickness of the sheets.
The masking helps prevent accidental scratching during normal handling and fabrication operations, and should be kept in place for most cutting and machining procedures. Although the masking provides a significant degree of protection against surface marring, the fabricator should avoid sliding the sheets over each other or across rough or soiled surfaces.
Containers should be handled carefully to prevent damage to the Plexiglas® acrylic sheet. When possible, forklift trucks should be used to move containers. Otherwise a special hand truck can be constructed or purchased to facilitate safe and economical handling of cases of Plexiglas® acrylic sheet.
Paper masking should be removed from both sides of the sheet before it is thermoformed.
Masked pieces of Plexiglas® acrylic sheet are best stored on edge in A-frame storage racks. Typically these racks are constructed of plywood and slotted angle iron. The supporting floor of each
Storage areas should be well ventilated. Air should circulate freely and should be relatively moist and cool. The temperature should not exceed 125°F. If Plexiglas® acrylic sheet is stored in a hot, dry environment or for extremely long periods of time indoors, the adhesive on the masking paper may eventually dry out, making it difficult to remove. Excessive moisture may cause the paper to deteriorate and reduce its effectiveness for protecting the plastic.
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with galvanized sheet metal for increased wear resistance. The rack's A shape equalizes the weight and eliminates stresses on building walls.
These racks give full support to the sheets yet permit easy removal of individual sheets from any rack.
Storage areas for Plexiglas® acrylic sheet should be completely separated from spray painting booths and other possible sources of solvent vapors that may attack and soften the surface of the material.
If masked sheets must be stored flat, avoid trapping chips and dirt between the sheets. Such chips and dirt may scratch or press into the surface of the material. Plexiglas® acrylic sheet should not be piled more than 18 inches high. Small sheets should be stacked on top of the larger ones to prevent unsupported overhang.
Plexiglas® should never be stored outdoors. Packages of Plexiglas® acrylic sheet should be stored on edge at a 10° angle from the vertical. Two-by-three inch wood strips placed on the floor about 42 inches apart will keep package edges off the floor and facilitate handling with forklifts or hand trucks.
It is good practice to store sheets of similar formulation, color, and thickness together. Mark this and other pertinent information on the masking of sheets that have been cut so they can be identified when needed.
Formed sections of Plexiglas® acrylic sheet must be stored in relatively cool areas. If the parts are to be stacked, they must not be nested, but should be placed in simple frames or racks that fully support the parts so that they will not deform.
The adhesion of masking paper on the Plexiglas® acrylic sheet may increase over time, making it difficult to unmask. Use older stock first. Newly received sheets should be placed behind the older sheets in the storage bins.
Plexiglas® G and MC acrylic sheets are supplied with either paper or polyethylene masking. Paper masking may be difficult to remove if stored for extended periods of time.