The Ultimate Guide to Silicone Sex Toys – With Metis Black of Tantus, Inc.

Silicone sex toys are heralded as the most superior sex toy material to many people. Silicone dildos can vary through a range of densities and silicone vibrators can feel plush without the potential for harm (like jelly or rubber). I picked the brain of Metis Black¹, the fabulous woman behind Tantus Inc, makers of some very awesome silicone sex toys. She is one of very few sex toy manufacturers that I fully trust to tell me the truth. Get your sex geek on and find out some myths and facts about silicone sex toys!

Myth or Fact: Silicone sex toys will “melt” or degrade if they touch each other while in storage

I own a lot of silicone. Scratch that; I own a lot of quality, true silicone. And I’m not diligent about storage. So if there’s anybody who can say that this is a myth, it’s me. And Metis. I asked her about this and she said:

I think this came from so many toys that were TPR or TPE that were (and continue to be) mislabeled silicone. Thermoplastic materials melt because they are unstable (they have free electrons that try to bond to other materials). As these electrons leave the toy, the toy disintegrates. No silicone is going to melt. At 600 degrees F it turns ashy. A silicone toy like the O2, with extra soft silicone, may burn off some of the dimethicone – flaming a little and becoming sooty- but still not melting.

So in other words if your silicone sex toy has any issues in your toybox, then it’s either not truly silicone or some rogue silicone lube from another toy got on it.

Myth or Fact: Silicone lube should never, ever be used with a silicone sex toy!

99% of the time you will be told that you shouldn’t use silicone lube with a silicone sex toy. I’ve parroted that info as well because it’s all I know. However a couple of manufacturers, Fun Factory for one, used to² advertise that you could use silicone lubes with their silicone sex toys. 

The Metis quick-n-dirty science geek answer:

The only thing that links silicone molecules is silicone so that’s why you may need to avoid lubes. The quality of the silicones in the lubricant and in the toy make a lot of difference.

Let’s say you really like your silicone sex toys and you really like using them in the bath or shower. Water-based lubes will fail you here. Are you out of luck? Not quite. A higher quality silicone lubricant won’t mess up a silicone sex toy – usually (Metis recommends Sliquid and Pjur brands)

Even with these brands we recommend you do a patch test (just like you’re supposed to with hair dye): on the base of the toy put a dab of lube and see if the lube gets gummy (it doesn’t ever melt). If it does get gummy it will happen pretty quickly and with only a small patch, you can clean it off with your finger nail.

So if it’s possible that yes, the two CAN meet, why the drumbeat of “Use only water based lubes!”? Litigation.

It became a liability issue when someone claimed it “melted” the toy as they were playing with it and so the customer went to the hospital. The companies who made the lubricant and the dildo paid that hospital bill and made a settlement; they also started publicizing that their materials were not compatible.

If you purchase both high-quality lubes and sex toys then you should be safe to mix, but test it first. I can tell you that the Fun Factory Body Fluid was smeared all over a Fun Factory and 2 Tantus silicone items with absolutely zero reaction that damaged the toy. There was a little bit of a “machine shop” odor though (see really-long-footnote #2 if you haven’t already).

Silicone is perfect, it is non-porous and the ultimate in safety! Right?

A few weeks ago I pulled out some travel bottles called Go  Toobs that are a soft, silicone body and plastic flip cap. They boast as being really great for travel. It’s food-safe grade, which is still pretty good quality, but everything in my travel tubes dried up. I thought, how is this possible? And the woman from the company tells me that silicone is porous. Wait, what? This went against everything I’ve been told and have told others about silicone sex toys. They’re non-porous! Body safe! Yes, they are. 

Actually Silicone is porous but where silicone holds its benefit against bacteria is that Silicone, by nature, has low surface energy and is hydrophobic  “water-fearing,”. These two features greatly reduce the risk of giving bacteria a place to live. Most bacteria needs a moist environment to live and Silicone, by its very nature, typically prevents that from happening. Silicone can also be made with antibacterial properties embedded into its chemistry but for Tantus’ use of silicone, embedding those properties adds higher-than-expected levels of toxicity to the material and may tend to kill helpful bacteria in the human body. And finally, Silicone can typically withstand temperatures of 125 C for short lengths of time without breaking down its structural and physical properties. The ability to withstand high temperature allows Silicone to be sterilized between uses.

Ok so they can still be sanitized. They’re not going to hold onto larger things like mildew, viruses or bacteria. This is the important stuff. An odor can be gotten rid of. Just keep an eye on your anal toys;  consider 10% bleach washes more often on those. 

ETA:Super-soft silicones, like the outer layer on the Tantus O2 dildos, can absorb small amounts of dye depending on the situation. A few years ago it was reported that ForYourNymphomation sex toy cases had a lining with a dye that could transfer to certain toys. The more solid silicones will not take on any dyes but really soft types can. They’re still medically non-porous, however.

Myth or fact: If you see a clear (or stretchy, i.e. a cock ring) “jelly-like” sex toy that claims to be silicone, it really isn’t

This is fact.

Contact Lenses can be made from silicone so yes it can be ultra clear- however silicone that clear is really hard, brittle and about 10 times as expensive for raw materials. It’s beautiful but I’ve never been able to figure out an application in toys where I could justify charging that much. If it’s clear and super stretchy- there is no way it’s silicone. Tantus is shortly introducing the first super soft c-rings- they are nicely stretchy. Every buyer who’s seen them has been really excited- they are coming out later this month, in about a week. As you’ll see however, these rings aren’t clear.

Which leads me to the next question…..

How can the consumer tell if their sex toy is truly pure silicone versus PVC or thermoplastic?

Really it’s still a buyer beware situation. After we burned “silicone” in Australia a few years back, another vendor friend said his stuff was silicone- I told him it wasn’t. I saw this friend’s website recently telling me and you that all their crystal clear super stretchy cock rings were silicone. They aren’t. China told them they were though, and they seem to be sticking to China’s authority. Remember most “manufacturers” don’t manufacture anything but package design and sales strategies. Sometimes they do some engineering but often they don’t even do that. This allows companies to rapidly enter the market- all they need is a warehouse for storing boxes.

Now, Metis isn’t recommending that we all turn into pyromaniacs, but the infamous “lighter test” will work to melt TPR, Sil-a-gel, silicone blends and other silicone-look-a-like materials. I’ve recently added a post all about the flame test for silicone sex toys which includes video so that you can see exactly what happens with true silicone products vs silicone blend products (which are marketed as merely “silicone”) when you light them on fire (or try to).

What do all these words mean, isn’t silicone silicone? What makes Japanese silicone better than medical grade and what is platinum? Why do they have to confuse us??

Because they’re salesmen? Platinum isn’t just a word used for high-selling albums and expensive wedding bands. Metis said first to me, in part replying about the lube compatibility issue that “It’s about different chemistry, some lesser grades of materials bonding. Originally it was a Tin not a Platinum silicone (this refers to chemicals that are in the silicone which make the two liquids into a solid– vulcanize it).” But of course you’ll never see Tin used to describe a sex toy.

The refining process of making silicone was originally created by GE back in the 50’s and they sold the patent to Dow. Then GE apparently figured out the value of it, and created a totally separate method of processing it. There are several other raw processors who make the base materials from sand, ‘silica’. One is a German company Wacker, another a Japanese company Shin Etsu. The only reason to reassure people that it’s Japanese or German is because there is inherent quality believed by consumers to belong to products coming from those two countries.

So apparently the general public has been heavily swayed by cars. Awesome. Also? “Wacker”. *snickers* Yes, I’m 12.

But on the other side of the naming coin is the trickery used by lesser quality manufacturers to make us think that something is silicone. You may see things called TPR-Silicone, Silicone-Elastomer Blend, SEBS, Cyber-Silicone. These terms were either made up for marketing purposes years ago or is a result of a communication gap between the manufacturing plant overseas and the branded company. What would be the point in adding in some (much more expensive) silicone to a cheap and porous material? It won’t suddenly make it non-porous. It won’t actually provide any benefit. Sex toy companies started to learn that many people want silicone, so they started to come up with clever ways to make it seem like they’re giving you something special, when they’re not. It should also be noted that sex toy retailers copy from each other, and that they don’t quickly update their information – so if a manufacturer was once using the false “blend” term, and then stopped, the retailer likely won’t change. I used to see a lot of sex toys on EdenFantasys labeled as “TPR Silicone” and when you look at the manufacturer’s site, they usually refer to it as “TPR”..

Is there a difference between the shiny silicone, the matte silicone, the stuff they stretch over vibrators, etc?

Yes and no. I started off comparing things like the shiny and hard Feeldoe to the matte texture of the soft-exterior Cush O2. Metis said:

Matte silicone just has a different finish on the master or the mold. Molds on the Feeldoe, for example, are highly polished. The difference with the Cush is that the super soft silicone has a different chemistry- it has more of the silicones that are in lube, making it a little less stable (with silicone lubes). 

Ok but what about the silicone that gets stretched over mechanical vibrators?

The silicone on a Lelo, or a WeVibe, etc, is an injection material that needs heat in order to cure. You can make dildos with this material too but it’s a process that is much more effective with thin small amounts than with larger amounts.  You can tell a silicone toy that is injected like this because the molds have parting lines with small tolerances. Most of Fun Factories designs are made this way. Vixen and Tantus’ products mostly aren’t. The silicone again for both processes is very safe and stable.

I’ve also recently (after writing this post) read about Lelo’s silicone process. They coat their items with something called SST (Silicone Soft Touch) which aids in lending that powdery-silky feel. I know that a lot of other luxury silicone toy companies use this product (it’s basically a liquid silicone that is also body-safe) and so when you flame-test these toys you’ll get a different result than when you flame test the shiny/sticky silicone products. You can see in my video of flame testing that items coated with SST will show a scorch mark that rubs off whereas other non-coated silicone products develop a pale ash, from the dimethicone burning.

Myth: Silicone doesn’t feel as “realistic” though as Cyberskin/Jelly! Silicone isn’t as fun/sparkly! Silicone is expensive!

I hear too many people trying to defend lesser quality materials with arguments like these. Silicone doesn’t mimic a realistic feel or look? Sometimes it does, sometimes it doesn’t. Mentioned before, the Tantus O2 line is a dual-density that has a really firm core with a layer of plushy silicone over top. Vixen Creations also makes some very realistic dildos. Two things though that these manufacturers won’t have in the “realism” department that a gross rubber/cyberskin dildo will have: multiple colors for a realistic skin look (i.e. painted-on veins and a pink cock head) and/or fake pubic hair. I mean, if you really have a burning need for that dildo to fool you into thinking it is a magical, dismembered human penis then I can’t stop you. But that fake pubic hair will trap all kinds of gross shit and the painted-on realistic features? That will wear off after awhile. Where is it going???? Think about that one. Silicone might not be clear and gem-like, but they can certainly add glitter to it. I’ve seen both Tantus and the defunct Jollies LLC do it.

People will also complain that silicone toys are too expensive. I know, they can be. Some manufacturers exploit the whole “luxury sex toy” angle. But there is a valid reason why silicone sex toys cost 2-4 times the prices of jelly, rubber or TPR. And frankly if after reading this whole post you don’t understand why……then I give up! But if you are on a super-strict budget, just watch for sales or keep an eye on the closeout bin at Tantus.