Stan’s NoTubes and e*thirteen discuss glitter in tire sealant

Additives such as glitter, so why don’t manufacturers use them?

Tires
We know that adding glitter to tire sealant works, so why don’t manufacturers use it?

We know that adding glitter to tire sealant works, so why don’t manufacturers use it? (click to enlarge)

We know from friends, mechanics, and an article we posted last week that mixing glitter or other particles in your sealant can help seal punctures. So why don’t mainstream manufacturers use these techniques? To find out, we reached out to Stan’s NoTubes and e*thirteen. We also pinged Orange Seal, but they declined to comment.

Mtbr: A number of our readers swear that adding glitter to tire sealant helps improve performance, have you tested this method or any other home brew recipes (such as uncooked rice)?

Stan’s NoTubes: There are a lot of things people can do to customize sealant for their unique needs. It’s all about tradeoffs. During our 15-plus years in business, we’ve tested hundreds, if not thousands of different sealant formulations. We’ve experimented with different particle types, liquid additives and bases, and we’ve varied the concentrations of each until we’ve arrived at our current commercially available formulas. What we make has to work well for everyone’s needs. That’s what we’ve spent so much time refining.

A tire sealant must balance puncture protection, longevity, compatibility while still being feasible to manufacture and distribute. For example, we could make a sealant that lasts much longer, but it wouldn’t seal as well; or we could make a sealant that would seal even larger holes, but it would be more difficult to install.

e*thirteen: Glitter is the easiest way for someone at home to get a particulate into their sealant that will assist with clogging holes. The shape and material (plastic) of glitter is pretty ideal for this. We at e*thirteen tested a lot of potential particulates in the development process, and glitter was one of the more effective. However, the stuff does not go away. In the case of a flat or tire burp, it would shoot out and stick all over our bikes and the trail, which really put the litter in glitter. We also experimented with a rice mixture, but it dried like glue. These trials helped us determine our primary goals for the final formula beyond efficacy; minimal environmental impact and easy clean-up.

Overtime sealant can dry up, so occasionally adding more can help ensure better protection against a leak.

Over time sealant can dry up, so occasionally adding more can help ensure better protection against a leak (click to enlarge).

Mtbr: In your experience, is there ever a case where adding glitter or another material might help seal a persistent leak?

Stan’s NoTubes: We basically have our version of glitter (called sealing crystals) already in our sealants. We use a more refined particle that travels better, lasts longer and doesn’t clump as easily in the bottom of the bottle.

Our standard sealant has always used sealing crystals, while our newer Race Sealant, which was released publicly earlier this year, contains twice the number of normal sealing crystals as well as bigger XL crystals for sealing larger punctures. We tested everything out there before arriving at the crystals we use today.

Experimenting is how we came up with sealant in the first place, and that path is always there for those with the free time and a willingness to get a little messy. Or a lot messy. Just make sure you get some safety goggles, and don’t blame us if your science project goes awry.

e*thirteen: In our experience yes it’s effective but impractical, and we found something much better.

Continue to page 2 for more on adding glitter to tire sealant »


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  • zamir says:

    here in mexico were ecofriendly and we use coffee!!!

  • James says:

    Anyone with young kids at home, particularly young girls, will tell you that the walls of hell are surely coated in glitter. I’ve tried to ban it from my house with little success, and I certainly would never voluntarily use it on anything bike related. Pure evil that stuff.

  • Butters says:

    I think Zamir is onto something. If e13 use black pepper, why not use old coffee grounds? Smart thinking… and its costs nothing.

    • Joe says:

      I think the idea behind the pepper was to prevent mold growth. I know for a fact coffee grounds grow mold — I found that out when I forgot to clean my coffee maker out one week. :-P

  • pjm says:

    Ground Flax seed…

  • Shark says:

    Corn meal works well for me in my home brew sealant.

  • bainey deali says:

    am finding it very difficult to mix ma home brew down here in Ghana and am completely lost about how dense my solution should be.

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