Essential for proper orientation of specimens in insect drawers, unit pinning trays also are useful for safe handling during transfer work, and provide a secure mounting method for mailing purposes.
Constructed of chipboard covered with white paper, trays feature white #1028N polyethylene foam or #1028P plastazote foam pinning bottoms press fitted with hot melt adhesive. A size 00 insect pin may be inserted easily without forceps and without bending the pin. The foam does not fracture, remains permanently pliable, is unaffected by moisture, and does not rust pins.
An additional unit tray has been added recently. Its size is half-way between a 1025A and 1025AA, providing optimum use of drawer space for large series or sizes of specimens.
Because polyethylene foam and adhesives are affected by paradichlorobenzene, BioQuip recommends using #1196 DDVP fumigants.
Unit trays without pinning material, #1025AAMT – #1025EMT are also available. Pre-cut polyethylene foam pinning bottoms are also available, see #1027A – #1027D, or pinning bottoms may be cut to size from #1028N or #1028P foam sheets.