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VS Extreme™
Polyurethane Vacuum Bag
4' x 4'
* Special Savings! *



Regular Price:
Your Price:
$228.00   ($79.50 Savings!)
Customer Rating:


Product Description

VS Extreme™ is the ultimate vacuum bag. Each bag is made from an extra-thick (30 mil) polyurethane material that has been designed for using an advanced thermoplastic capable of withstanding pressures exceeding 3,750+ psi and stretching more than 6 times its width and length*. VS Extreme vacuum bags offer superior resilience and unmatched puncture resistance. Made in the USA.

Each bag is welded with a state-of-the-art custom RF welding machine operating at 7,000 watts and 50 lb/in of pressure. This exact combination of frequency and clamp strength yields the most durable and airtight seam available. Each bag then undergoes a series of inspections including a final check that I do prior to shipment.

*Elongation and breaking strength based on ASTMD 412 test method.


  • New Flush-Mount Valve StemNew Flush-Mount Bag Stem - The VS Extreme vacuum bag also includes our new flush-mount bag stem assembly that allows you to use the full length of the vacuum bag without worry of project surface damage. A specially designed 2.5" diameter 50 mil flange is molded onto the polyurethane stem body and is permanently welded onto each bag. This creates an 80 mil total thickness reinforcement area for maximum durability. Please note that a lock-on connector is required to attach your vacuum tube to the bag stem.
  • Lubricant Infusion - VS Extreme vacuum bags are infused with a non-transferring lubricant that works in several ways to make vacuum bagging easy and trouble-free. This lubricant prevents most woodworking adhesives from sticking to the bag. Glue that sets on the bag simply peels right off. Unlike traditional urethane material, infused polyurethane allows the user to easily slide the platens and project panel into the bag without "blocking" or binding. The slippery surface makes inserting project panels a breeze.
  • Superior Resilience - Months of extensive testing resulted in a custom formulation that is unsurpassed in durability. VS Extreme bagging material typically withstands 650% more use than standard 30 mil vinyl.

Vacuum Pump Inside a Vacuum BagAdditional Information

  • Actual Size: 54" x 54"
  • Approximate Project Size: 48" x 48"
  • Thickness: 30 Mil
  • Color: Clear
  • Softening Point: 150° F
  • Melting Point: 320° F

Each Bag Includes

  • Attached Flush-Mount Bag Stem
  • 58" Bag Closure
  • Detailed Care and Instruction Sheet

Please Note

  • Bag Closure IncludedThe opening on this bag is on the 54" side.
  • Click here to download the PDF instructions.
  • A lock-on connector, which is included with all of our vacuum press kits, is required to connect a vacuum line to this bag.
  • This bag is sealed on three sides. Some users prefer to have two opposing open ends so that a shop helper can assist with loading larger projects from the other end of the bag. To do this, purchase an additional bag closure and simply trim off the end seal.
  • The vacuum stem is mounted in the center (left to right) and approximately 15" inward from the bag opening.

Learn more about this product by clicking here.

How do I attach my vacuum tube to this bag?
Our lock-on connector is required to connect a vacuum tube to this vacuum bag. This connector is included with all of our vacuum press systems.

What else should I know about the bag?
The maximum project size that is listed for this bag is approximate. It will vary because of tolerances in the manufacturing process. The maximum project size will also vary depending on the total thickness of the platens and project. You can maximize the usable size of the bag by using breather mesh instead of a top platen.

Does the vacuum bag have to stay connected to the vacuum press after full vacuum is achieved?
Yes because a perfect seal on a vacuum bag is virtually impossible. Here are some things to consider.

  • Sometimes the bag closure doesn't seat perfectly across the opening.
  • Sometimes the bag stretches a bit after full vacuum is created and then needs a bit of additional vacuum. This happens most often when there is a large project in the bag. You'll hear the vacuum system cycle off (if you have any auto-cycling system) and then turn on again for a few seconds. After that, it may not cycle again for several minutes or even hours.
  • After many uses some bags develop pin holes which can be almost invisible. In those cases, it's best to let the vacuum press keep the bag vacuum under control.

If the vacuum system is disconnected from the bag, you won't know if there is a leak because there is no vacuum gauge on the bag itself. If the bag is connected to a vacuum press system, you can easily see the vacuum level by looking at the gauge on the vacuum press. The vacuum inside the system is the same amount of vacuum inside the bag. If your vacuum press cycles on and off too frequently during a project pressing, you'll know there is a leak and if you can fix it. However, if you can't fix the leak, at least the vacuum system will keep manage the vacuum in the bag until the panel is finished.

Does epoxy stick to this polyurethane material?
I have tested the polyurethane with several brands of epoxy purchased from the local hardware store. The epoxy did release from the test samples. However, I've have received differing opinions about this from our customers and my guess is that it depends on the type of epoxy, how much epoxy comes in contact with the material, and how often the vacuum bag is used in this capacity.

Do you offer samples of this polyurethane material?
Yes. Please click here for details.

Product Reviews

  1. VS Extreme Vacuum Bag is Sturdy & Gives Great Results

    Review by Steven Parker

    This bag works perfectly. I'm new to using high quality veneers in my box-making business and I ordered this based on Joe's recommendation, which BTW his recommendations are always spot on. The bag is perfect for the Excel 1 System which I also purchased. I was pressing veneer for a box that day with excellent results. I picked up breather mesh to go along with the system. Five stars all the way. Thanks Joe and Christine.

  2. This Bag is Incredible

    Review by Stephen H. Phillips

    After 3 months of almost daily use I can say this bag is incredible. Our shop recently started doing veneer work so that we could start using some exotics and burls. Now some of our customers are asking for table tops and carcass work in bubinga, wenge, and anigre so I'm back to buy two different size bags. We're very satisfied with this bag and highly recommend it.

  3. Review from Sarasota, FL

    Review by Fred Cattell

    These bags are a good deal considering the quality of the material itself. The polyurethane is somewhat flexible and I've never had a problem with glue sticking to it. I own two Extreme vacuum bags and two Elite bags. My Elite bags have been thoroughly tortured for a couple of years with some wickedly shaped clock cases and chair backs. Both bags are very good for veneering and bent laminations over the forms. You'll find that the customer service here is excellent. The owner answers questions quickly and he is good at engaging people to make sure he understands their project before he suggests products from this website. I've never had a bad experience with this company.

  4. Everything I Needed

    Review by Casey Cloud

    I am building cabinets. I use this bag 30 or 40 times a week. It has held up great over the past 6 months. The only complaint is I should have got a bigger one ;)

  5. Workhorse Bag!

    Review by Brian Lovitz

    You got to admit that this is a great price for a 30 mil polyurethane vacuum bag. I've seen them online for more than $400 for the same size. Joe sent me the bag a few weeks ago and I've been using it for veneering antique piano legs which have a fairly complex shape. The bag has held up perfectly and so far, so good - the legs have all turned out nicely.

    The only issue I've found is that it takes a bit of muscle to get the closure attached. Joe mentioned that this would ease up over time and honestly, I'd rather it be tight than loose anyhow. Otherwise, this bag is a real workhorse and for the price, its probably one of the best purchases that I've made for my shop.

  6. Built Like A Tank

    Review by Cory M.

    Joe shipped this bag to me a few weeks ago after we had sent several emails to each other discussing which bag was right for my projects. I do a lot of epoxy resin work for boats and I needed a durable vacuum bag that could take anything I threw at it. Each time I sent an email, I got a quick reply. Joe really extolled the values of this bag. We both agreed that for my type of use, this heavy duty version (called Extreme) of the Elite bag style series was best.

    I've been using my bag a lot this week and thought it would be a good time to write a review as my way of saying thanks to Joe for all of the help. So far, I've completed 40 curved fiberglass shelves, 20 doors, and at least 100 angle brackets in my bag (using a salvaged vacuum pump). Despite the mess I've made, the bag still looks new and shows not a hint of failure. For the money, I dont think there is a better vacuum bag available.

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