New use?  If you have a new and different application, send us the info; we'll send you a free can!  Yes, we know you can use it on wine.  :-)

Some good ones recently:  killing book mites, preserving display food items, preserving a collection of the elements, recharging argon filled windows, conformal coatings (circuit boards), mold making chemicals.

Latex? Bloxygen will not help with problems in water-based finishes or lacquer.  These products don't cure via oxygen absorption. In our experience, using a spray bottle of water and spritzing the inside of the can and underside of the lid helps latex during storage.

MSDS Sheet?  Yep.  We've got it here.

What about other solutions?  For years this problem has frustrated woodworkers and finishers. Of all the attempts to solve this problem (see below) none we've seen are as quick, as safe, or as successful.

  • What about marbles? Some folks try to eliminate the air space in their container by throwing marbles or rocks in the liquid. In addition to contaminating their product, they often find that cleaning the marbles results in lots of wasted time and product.
  • What about a smaller container? Transferring your liquid to a smaller container will reduce the air space, but you'll still have oxygen in there. Since the labeling was on the original container, tracking the instruction labels and warnings could be a problem.
  • What about exhaling into the container? As scuba divers or paramedics know, the air we exhale is NOT oxygen free. We inhale 21% oxygen and exhale about 15% oxygen.
  • What about tipping the container over? Storing your leftovers upside down will only guarantee that the skin will form on the "bottom" of the liquid. Your finish will still be ruined. 
  • CO2? We use ultra pure Argon because it's totally inert.  CO2 is okay, but it's not totally inert and will react with water to form carbonic acid.  If you want to liquify CO2, you need a stronger container than an aerosol can...think paintball or BB gun.  They are thicker steel.  A container with liquid and gaseous CO2 is about 870psi at room temp.
  • What about Air Dusters?  The compressed gas dusters contain difluoroethane CAS #75-37-6 which is flammable when concentrated in a fuel/air concentration of 5.1-17.1% by volume.  Inert gases do not burn.  Given that this is NOT an inert gas, no sound prediction can be made about the effect it will have on the millions of different finishes out there.
  • What about Propane?  No.  Just NO.  This is dangerous.

Does it last?  Yes.  With an infinite shelf life, each can will provide about 150 seconds of gas. That's enough gas for 75 uses in quarts. Given that a quart of premium varnish can cost $40 or more, saving just one half of one quart will pay for your Bloxygen. The additional 74 uses are "free."

Can Bloxygen be shipped?  Yes. The containers are DOT-reg. 2Q plus (18 bar) steel aerosol cans and they are shippable as a Limited Quantity ID 8000 item (UN# is 1006 / 2.2).  The USPS requires a "Shipper's Declaration for Dangerous Goods" in triplicate.  Contact us for sample forms.  UPS requires a HazMat contract and training.

Argon? Bloxygen uses ultra pure argon. This gas is a natural component of our air and the third most common gas on Earth at (about 1%). A full can, because it contains only a gas, feels empty. The gas is non-toxic, non-flammable, and inert. Deliberately misusing Bloxygen by concentrating and inhaling it can result in rapid suffocation, asphyxiation, and perhaps death due to lack of oxygen. There are no CFCs, VOCs, or added propellants.  It's totally natural.

Where have we seen this? Popular Woodworking gave this idea the Best Tip award. Bloxygen has been in Woodshop News , Woodshop Business, Wood, Workbench, HomePRO, and American Woodworker. In Fine Wood Working, Jeff Jewitt, the finishing author, says "The idea ... is quite simple" and "[Bloxygen] performed well on oil-based products." Also, check out other reviews in sail and other marine magazines.  We advertise in Sail, Popular Woodworking, Woodworker West, Woodshop News, Good Old Boat, Wooden Boat, Google, Facebook, Trade Shows, and several others. 

What if we have problems with Bloxygen? We will make EVERY effort to satisfy any concern. There are only three problems we've ever seen:
  1. Not Enough Gas Used: The entire storage container must be purged. You cannot use too much gas.
  2. Slow Lid Seal / bad seal: Once the container is purged, the lid must be immediately sealed into place. Make sure that the lid is spotless and dent free to create an airtight seal.
  3. Bad Finish: Once oil-based finishes absorb oxygen and skin over or gel, they will continue to have problems during storage. These finishes will never be the same. Start with NEW finish and use Bloxygen each and every time it's stored.

Is it guaranteed?YES!   We want to make sure you are 100% satisfied with our product.  That’s why we use only the best components made in the USA and assemble and fill our cans here in the USA.   We've sold this for 20 years now and we are much more interested in keeping happy customers and good reviews than profit.  Simple.

Relative to initial pressure, we have seen leaks in some cans sometimes we are moving to a higher end equipment line in 2020 to more precisely fill our cans.  Sometimes our cans are tampered with.  About 1 in a thousand is actually horrible.  It does happen, however.  Our initial can pressure is at the limit of a DOT 2Q container, 160psi.  That's about three times higher than a spray paint can or a can of air freshener.  Given that we are using such high pressures, we  use specialty components and sometimes they do fail.  If your can leaks or arrives empty, just contact us at the address below (email is and, if possible, provide the codes on the bottom of the can so we can track these issues.  We will ship a replacement to you immediately.

Best Practice? When the container of finish is opened, pour the required amount of finish into a second, user container. Take time (and perhaps use a product like the Paint Plow) to ensure that the original groove is cleaned. Now use the Bloxygen to purge the finish container, seal it, and store it. This will minimize the amount of time that oxygen and moisture can interact with the original product. The finish used in the secondary container should be used up or properly discarded. It will have been exposed to oxygen, moisture, an applicator (rag, brush, etc.) and cannot be returned to your container because of this contamination.

How can I test / demonstrate Bloxygen?  The testing we do is simple. We use two 40 ml

sample bottles,* each filled halfway with the subject liquid. One vial is simply sealed as a

"control" and the test container is carefully gassed with Bloxygen and then sealed. Once

they are sealed, label and date them. To simulate use, open each vial once a week,

remembering to use Bloxygen when sealing the test container. The sample protected with

Bloxygen should remain the same as when new. Some of the unprotected "control" vials may

get thicker as their viscosity increases; others will actually skin over. While some heavy-bodied

paints will take weeks to show a difference, finishes like Behlen's Salad Bowl Finish will skin

over unprotected in about a week. Check your sample by

viewing the liquid moving around in the Bloxygen vial and

compare that to the rigid skin in the unprotected sample.

Jasco Tung Oil or Behlen Salad Bowl Finish skin over quickly

and make for a great demonstration.  Unopened, we have

samples that are 6-10 years old and still are perfect.

*Cole-Parmer Instrument Co. number E-08918-24,

3 7/8" x 1 1/8";borosilicate vial with rubber seal. 1-800-323-4340.

Does Bloxygen meet the Military Specifications:

Yes.  Bloxygen meets Mil Spec MIL-DTL-53072F, Detail Specification - Chemical Agent Resistant Coating (CARC) System Application Procedures and Quality Control Inspection, dated 31 May 2017 and the associated MIL-A-18455C, Military Specification, Argon, Technical, Dated 23 December
1986.  Contact us directly for details.

Untitled Document
Oil Based Paint Stain Oil-based Inks and Stains
Varnish Urethane Polished Metals
Polyurethane Printing Chemicals Gunpowder
Catalysts Auto Body Chemicals and Coatings Liquor
Photo Chemicals Furniture Refinishing Chemicals Chemical Compounds
Wine Fuel Additives Coffee
Marine Coatings Glue Guacamole
Tung Oil Epoxy  

Did your leftovers turn to goo or skin over? We can help.  Bloxygen (for "blocks oxygen") is a heavy inert gas that prevents oxygen or moisture damage during storage.  Preserve and use every drop; just spray, seal, and store.

During storage, the oxygen or moisture that's sealed in the container continues to cure and thicken your leftovers, ruining them.  This is wasteful, time consuming, and messy.  Sometimes, hardened particles can clog spray guns, run the final finish, or destroy the remaining liquid. 

In the USA alone, the EPA showed that about 65 to 69 million gallons of paint are thrown away each year, and about 15% of that is oil-based. That's a line of quart cans from Los Angeles to New York tossed out each year. Each can of Bloxygen can prevent SEVENTY FIVE quarts from oxygen or moisture damage.

HOW DOES IT WORK? Bloxygen uses ultra pure Argon, a powerful and natural inert gas to drive the oxygen and moisture out of your container. Simply blow the oxygen out of your container with Bloxygen and then seal the lid. The heavy, inert Bloxygen gas sinks down to block oxygen from the liquid surface. Because Bloxygen is heavier than air, it will separate the liquid surface from any air that may remain in the container.


  • Use all your finish, not just the first half
  • Prevent changes in product chemistry during storage
  • Save time by making finishing projects easier and cleaner
  • Store your leftovers safely, in the original labeled container
  • Reduce your hazardous waste / product loss
  • Avoid paying a premium for small volumes of finish
  • Improve the quality of the final application
  • Eliminate spray gun clogs and jams

Use Bloxygen any time you are storing:


         --   First, ALWAYS wear Safety Glasses.

  1. Twist the extension tube into the spray tip.
  2. Hold lid closely above container and spray towards side of the container to avoid any splash.
  3. Spray 2 full seconds for quarts and 4 full seconds for gallons.*
  4. Close lid immediately to seal in heavy gas.

*We recommend 2 seconds for quarts and 4 seconds for gallons assuming that they are half full.  Our "rule of thumb" is to spray enough argon gas into the container to fill the head space twice.  So you'll need less gas if the container is nearly full and more if it is nearly empty.

NASA + SATOP. The Space Alliance Technology Outreach Program is a wonderful program that allows US businesses to receive a small amount of technical assistance in solving and answering critical issues. NASA helped Bloxygen!  The NASA Scientist loved our idea and wanted to help.  We were curious about a way to provide more gas for our customers in our standard cans. Using activated charcoal and the physics of adsorption, we proved that the concept worked, but we'd have to fill the entire aerosol can with charcoal and it'd be cost prohibitive.  I know it seems odd that you could get MORE gas into the can by filling it with charcoal, but it's true!  The experts in charge, said that this technique would work well for storing more gas per unit volume (at a given maximum pressure) when cost was not a a space mission. Cool, eh? Here is the article.

Well over 60 million gallons of paint are

wasted every year in the USA alone.

The Grommet Video

Use Bloxygen on: