Fibre Glast High-Temp No-Leak Vacuum Seal Tape, Yellow, 25ft – Vacuum Bagging Supplies, Vac Purge Kits – for Carbon, Fiberglass, Epoxy & Resin Composites – Made in USA

Good heavy tape, has plenty of body for confirming to surfaces and sealing a bag. Note my application was not particularly high vacuum, but I have high confidence it would perform well.

Works really well. Seals better.

You know what this stuff is. Stickier than the mud you got your dirt bike stuck in and bent the forks and burned up the clutch in your pickup trying to get it out. Seals like how NASA likes it. Gummier than that 5 lb bucket with the baseball player on the label. It stretches! It bends! It sticks! Just don't use it in your Mom's oven kids, she'll get mad. It's the good stuff. Doesn't stick to your vac-bag too hard until you press it down or let it sit a spell. Did some resin infusion and this stuff sat against resin for a few hours with no ill effects whereas the cheaper thin, stiff, black stuff let right go and lost all vacuum. The only reason for the two layers in the first pick is because I reused that bag a few times and just sliced one side of the bag just inside the old tape. The reason for the Gobs of tape (and the need to quick ship another roll) was because as it turns out carbon fiber is porous therefore not airtight. Who knew. (Everyone knew Mike. Everyone.I just hoped it'd hold well enough... It didn't. So I sealed the buhjeesus out of it.) Just wish it were prime or at least lower shipping cost than the tape itself.

This has been some good tape for us so far. Seems to seal well with no side effects. A bit high priced, but acceptable. Recommended!

Reliable and works well. Make sure to let it warm to room temperature if the package was outside. However, these guys are not always careful with packaging and I have received crushed rolls that were smushed so each layer had to be peeled apart.

We bought this to vacuum bag a panel. Once you push on it it grabs and seals the plastic together for good. I would buy it again if I needed too.

Easy to use and seals really well.

This is excellent quality tape. Once squashed down it grabs like crazy. Leaks are a minimal issue and easily identified and remedied. Holds up to exposure to resin well. This is the stuff to get for infusion or vacuum bagging.