HDPE is perfect for custom vacuum clamping jigs and fixtures because it is non-porous. It holds vacuum pressure perfectly! It's also very strong and yet machinable with almost any woodworking tool. I've sawn, routed, turned, planed, and tapped HDPE with no problem.
This HDPE is sold without any ports or holes drilled in it so that you can make a vacuum clamping jig in any size we stock.
Material: High-Density Polyethylene
Color: Opaque white/natural
Edges: Saw cut
Size Tolerance: +/- .025"
Hardness: Shore D 62-69
Suitable Temperature: -40° to +149° F
Weight: 3.75 lbs/sqr ft
Tip from Joe
Don't forget to order an 1/8" NPT pipe tap, brass fitting, and vacuum gasket tape to complete you vacuum jig. You might also need the vacuum clamping add-on if you have a Project: EVS or V2 vacuum press system.
Review by Brian O.
I like that this plastic is machine-able and that it doesnt create a lot of dust when it is cut. I use HDPE for custom vacuum jigs but I have also started using it anywhere I need something that has screw-holding abilities and needs to be used outdoors. I've used it to make brackets and mounting blocks for my motor-home, boat, and trailer. I've also made fixtures and wall plates for my garden hose with this material. You can route it too. It routes well and the edges stay sharp.
My vacuum jigs (about 20 of them now) vary in size from 6"x6" square to a 22" perfect circle that I use for template routing when making batch runs of pedestal tables.
The material arrived at my house within a day of ordering and I feel the shipping was fair.