Glass Support Plates User Instructions

Refer to the original PDF for tables, figures and page layout.

Page 1
Product Guide 
www.alliedhightech.com 
Allied High Tech Products, Inc. 
Call for more information: 800.675.1118 
Glass Support Plate 
Date: 06/2020, v1.2 
The glass support plate is a smooth, clear 
8" ø x 0.25" T plate that provides an ultra-flat 
surface for lapping products (Figure 1). It is 
intended to be used on top of a standard or 
magnetic MultiPrep™ platen when standard 
platens do not provide a flat or smooth enough 
surface due to grooves and/or rough surfaces 
from manufacturing. Following standard 
alignment of the MultiPrep™, the glass plate 
can be used accordingly: 
Plain Glass Support Plate 
1. Place the glass plate on top of a dry standard
MultiPrep™ platen.
2. Adhere the glass directly to the platen by
wrapping electrical tape around the perimeter
of both the glass and the platen (Figure 2).
3. Place diamond lapping film on the glass plate
and use it as normal.
Magnetic Glass Support Plate 
1. Place a magnetic glass support plate on a
magnetic MultiPrep™ platen (Figure 3).
2. Place diamond lapping film on the glass plate
and use it as normal.
3. Tape and other adhesives are not necessary.
Lapping with a Glass Support Plate 
The glass plate can be used as a lapping surface in conjunction with diamond 
compounds or diamond lapping films and a designated polishing lubricant. The plate is 
hard and does not compress, allowing for tighter edge tolerances and better flatness 
than compressible polishing cloths. 
Product Numbers 
69-10030
Glass Support Plate, Plain, 8" 
69-10030M Glass Support Plate, Magnetic Back, 8"
Figure 2: Electrical tape is wrapped 
around both the glass and the platen. 
Figure 3: Magnetic glass plate 
on a magnetic platen 
Flexible Ferromagnetic Backing 
Magnetic Base 
Figure 1: Glass support plate (top), platen 
(bottom, not included with purchase)