With the help of a fellow woodworker, I've found the OEM source for the most incredible vacuum sealing tape available. This is not a knock-off. This is a high density on-board gasketing tape comparable to high-end industrial vacuum clamping systems.

Sold in 150 ft rolls. The tape is coated on one side with an acrylic pressure sensitive adhesive. The foam's 1/16" thickness assures conformability to a wide range of substrates and its 3/8" width allows a tighter radius for small parts on the vacuum clamping/templating jig.

What is it used for?
Vacuum clamping is the easiest to way to hold an object for routing and sanding. Vacuum clamps powered by a venturi or electric pump can generate up to 1,700 lbs per square foot of clamping pressure without marring the work piece. If you're unfamiliar with vacuum tape, this is the stuff that makes the air tight seal between a vacuum jig and the work piece.

Features

• Closed cell foam gives this tape greater abrasion resistance.
• The self-stick adhesive system allows the gasketing to be easily applied to virtually any sound jig material.
• Eliminates creep and chatter which makes sanding operations faster and routing operations more accurate.
• This tape offers the lowest compression set of any tape available. It has excellent "memory". In other words, it will return to its original size after each clamping operation.
• Can be used with small and tight radii on the vacuum jig.

Technical Data

• Type: PVC
• Hardness (Shore 00): 60
• Tensile Strength: 80
• Elongation: 150"
• Compression set: 4
• Length: 150'
• Width: 3/8"
• Thickness: 1/16"

Due to the slightly reduced thickness of this tape, it can not be used with Mach ball valves.