PolyAn’s multipart plates are comprised of a functionalized glass plate (75 x 110 mm, 1mm thickness) which is combined with the ProPlate superstructure after the printing process. ProPlate® MTP features a biocompatible, pressure sensitive, adhesive bonding system applied to a bottomless microtiter plate to form a leak-proof seal between wells to isolate microarrays printed on glass or plastic during processing. Designs are available in black polystyrene for the 96 well (round) and 384 well (square) plates, and in black polycarbonate for the 96 well (square) plate, which maximizes the array printing area. Application of the substrate is as simple as peeling off a liner to expose the adhesive and pressing the content to the surface. Alignment of arrays within the wells may be facilitated by means of a fixture (sold separately). This product is often customized for content providers seeking a go-to-market solution for their arrays printed on difficult to bond substrates. Lids and adhesive plate seals are also available both as a packaging solution to protect content and as a means to prevent evaporation during reagent incubation steps.