3M6297-Soft Edge Foam Masking Tape-3M COMPANY | Midstate Tool & Supply, Inc.
Making An Off-Axis Aperture Mask, For A 10-inch f/4.5 Newtonian: My Previous Mask Was 4.25-inches, And I Wanted To Increase To 5.125-Inches, For An Attempt To See Sirius B
Automotive Aperture Tape: Large Tube Tape for Cars | by Tube Tape | Medium
3M™ Soft Edge Foam Masking Tape | 3M Lebanon
Indasa USA, Inc 322789 3/4" aperture tape
06298 Door Aperture Tape 27 yards 3/4" - BKE Distributors