What’s the Difference?——TPE versus Silicone Life Like Love Dolls

One of the most commonly asked questions about our love dolls is: what’s the difference between TPE and silicone sex dolls?

What is Silicone material?
Silicone is a thermosetting elastomer with the advantages of safety and non-toxicity, insoluble in water and any solvent, non-toxic and odorless, stable in chemical properties, and not reacting with any substance except strong alkali and hydrofluoric acid. It features high adsorption performance, good thermal stability, and stable chemical properties. It was at first used widely in adult products such as silicone sex doll, and food products.

What is TPE material?

TPE is a kind of thermoplastic elastomer, which is environmentally friendly and non-toxic, easy to coloring, smooth and soft, and has a hardness range of 0A-120A. It is easy to be processed, does not need vulcanization, can be recycled and utilized, and reduces the cost.It can be coated with PP, PE, PC, PS, ABS and other plastic materials.(Two injection molding), and it can also be moulded separately.

The differences between TPE and Silicone:
a. Melt Temperature
TPE is a variety of elastomer materials with rubber elasticity at room temperature and melt flowing at high temperature. Silicone is a kind of special rubber, which has good mechanical strength, wear-resistance and high temperature resistance after crosslinking. It is a sort of thermosetting rubber. After vulcanization, it will not melt and burn when the temperature is too high. The product of complete combustion is water and silica.

b. Analytical Structure
They differ in their analytical structure: Silicone is the elastomer with its main chain linked by silicon oxygen, and its side chain is generally methyl class, that is, CH3.TPE is a thermoplastic elastomer with styrene, olefins and polyurethane. The main difference between them is that one is SI02 structure and the other is CC structure.

c. Processing Performance
From the point of view of processing performance: Silicone gel is usually molded by hydraulic press. Some liquid silica gel can be injected into injection molding machine, but it also contains crosslinking such a chemical process. The processing cycle is relatively long, and waste scrap can not be recycled. TPE is a thermoplastic material, which can be injected and extruded. There is no cross-linking. Overall, the processing cycle is shorter than that of silica gel, and the waste scrap can be recycled.

d. Temperature Resistance
Silicone is superior to TPE in high temperature resistance. Temperature resistance of silica gel is generally 200 degrees between 300 degrees, and TPE generally TPE heat resistance 130-150 degrees Celsius, aging and cracking under the higher temperature.

e. Price
The price of silicone is generally more than 5000USD per ton, while the price of general TPE is between 2000-5000 USD. The price of TPE is more advantageous than that of silicone materials, except these special TPE materials, such as halogen-free flame retardant, food grade and so on.

f. Recyclable
From the cost point of view, the waste of silicone can not be recovered while TPE waste, nozzle material, scrap and so on can be completely recycled, so that TPE can save more costs. Both point 5 and point 6 show the reason that silicone sex dolls are more expensive than TPE sex dolls.

g. Elasticity
From the point of elasticity, silicone material has excellent elasticity. The silicone is a vulcanized crosslinking system with 100% elastic recovery. TPE has good elasticity, as a thermoplastic elastomer with good resilience, but TPE physical crosslinking, so that there will be a certain permanent deformation. High molecular weight TPE materials have better resilience.

h. Surface Smoothness
From the point of surface smoothness, the surface smoothness of silicone has a wider range of hardness. Generally, 20-80A silica gel materials have excellent surface smoothness, and the surface is not easy to adhere to dust. The surface smoothness of TPE is slightly inferior to that of silica gel. The softer the TPE is, the greater the difference between the smoothness and silicone is.

i. Environmentally Friendly
In terms of environmental characteristics, silicone is more environmentally friendly than TPE, and it has passed American food-grade FDA 21CFR 177.2600. TPE excellent environmental protection materials contains no halogen, no o benzene plasticizer, no bisphenol A, no nonyl phenol NP and polycyclic aromatic hydrocarbons (PAHs), in accordance with ROHS REACHHN EN71. As for the US food-grade test 21CFR 177.2600, the industry generally thinks that it is very difficult to pass, for it requires higher for TPE blending system.


In most regards, both materials perform very well indeed. After all, both TPE and silicone adult size sex dolls have been refined for many years, resulting in the durable, elastic materials that are essential for making beautiful, realistic sex dolls. Whether you adore Japanese life like sex dolls or European/US style models, both materials have been used to create them – with stunning results.

The infographic goes some way to show the benefits of each material type, but it’s important to remember that the specific design and manufacture of a given life like love doll will also influence these factors. For example, here at Sitridoll we only stock the very finest TPE dolls, and an inferior TPE doll from another supplier might not deliver some of the benefits shown in the image.

Durability and realism

But in general, it’s true to say that a silicone life like doll is a little more durable and somewhat easier to clean. It’s also true that some buyers feel TPE sex doll huge tits give a more realistic wobble, but that TPE doll can be torn more easily if not handled with love and care.

Caring for your doll

Whichever material seems right for you, you will need to treat the real life love doll gently, even in the throes of passion! That’s not to say you can’t have a lot of active fun with your real sex doll – only that you should treat her as you would a real woman (which we’re sure you will!).

real life love doll silicone

Staying within budget

If you’ve been browsing the various life like sex dolls available, you’ll have realised that silicone sex dolls cost more than those made from TPE. This is one of the main factors when choosing a sex doll, balanced with the added durability and hygiene benefits of silicone. Indeed, the most expensive real dolls in the world ($10,000+) use silicone. But for those whose budgets do not extend to such products, TPE and more affordable silicone sex dolls are still extremely well-made and beautiful.

TPE – a favourite among life size love doll sculptors

Of all the aspects of a real sex doll, the face is arguably one of the most important: if you don’t get it right, the sex doll will never look beautiful. That’s why many realistic sex doll design companies love TPE – the ease with which it can be moulded, and the fact that, because it’s cheaper, fear of failure at the design stage is much reduced. From Japanese style love dolls to tall European or American beauties, TPE has proved fantastic for creating some of the most beautiful sex dolls in the world.

Trust sitridoll.com

Whether you choose a TPE or a silicone sex doll, when you buy from sitridoll.com you can rest assured that you are ordering a doll of the very highest quality from one of the world’s leading manufacturers. What’s more, because of our size and buying power, we can offer you some of the lowest prices you’ll find anywhere.

There’s never been a better time to buy and customize your very own real love doll.

3 comments

3 comments

  • Sam
    Sam

    She is really my dream lover

    Salazar
    Salazar

    Only I want to ask the picture of this sex doll’s link?

    Bainbridge
    Bainbridge

    I can’t control myself anymore, yelling at belong myself sitridoll sex doll

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