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 the same high density on-board gasketing tape included with dedicated high-end industrial vacuum clamping systems such as those from ShopBot, C.R. Onsrud and Holtzer.
Sold in 100' rolls (enough to make dozens of vacuum jigs). 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 from the substrate on your CNC router or 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 1700 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.
About the Pricing...
From the equipment manufacturers, you could expect to pay $28 to $40 per roll. Why is it so expensive? Simple. This is the only vacuum tape designed specially for vacuum clamping and templating that does not allow shifting or creeping of the work-piece. As I've written many times on other products available on this website, I've bought a huge quantity of this item to get the absolute best price.
Due to the slightly reduced thickness of this tape, it can not be used with Mach ball valves.
What is the difference between the standard vacuum gasket and the templating gasket?
The standard tape is used for basic benchtop vacuum clamping when profile routing, sanding, or carving. The templating tape is thinner has has less lateral shift which makes it better for template and pattern routing.
Review by Russell Vance
... the availability of this excellent and inexpensive professional level vacuum template tape has expanded our vacuum jig inventory to encompass just about every process we do. We use it on phenolic, Lexan HD3 and chipboard. Our only gripe is the USPS GAP cost which makes no sense - 2 rolls of tape which weighs nothing is $28 and an additional roll is an extra $5 for something which also weights nothing and is well under the standard box weight limit.
Note from Joe: We have no control over the fees that are charged by international postal systems. Our 'International Orders' information page has details.