9 differences between TPE and silicone materials for sex dolls

9 differences between TPE and silicone materials for sex dolls

TPE makes up for the lack of silicone materials in extraction, cost and price. As TPE has more and more variants and applications, TPE is the best substitute for silicone.

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 does not react with any substance except strong alkali and hydrofluoric acid. It features high adsorption performance, good thermal stability and stable chemical properties. It was first widely used in adult products such as silicone sex dolls and food products.

What is TPE material?

TPE is a kind of thermoplastic elastomer, which is environmentally friendly and non-toxic, easy to color, smooth and soft, and has a hardness range of 0A-120A. It is easy to process, does not require vulcanization, can be recycled and used, and reduces costs. It can be coated with PP, PE, PC, PS, ABS and other plastics. (Two injection molding) and it can also be molded separately.

The differences between TPE and silicone:

A. Melting temperature
TPE is a variety of elastomeric materials with rubber elasticity at room temperature and melt flow at high temperature. Silicone is a kind of special rubber, which has good mechanical strength, wear resistance and high temperature resistance after crosslinking. It's a type of thermoset rubber. After vulcanization, it will not melt and burn if 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 whose main chain is linked by silicon-oxygen, and its side chain generally belongs to the methyl class, ie CH3.TPE is a thermoplastic elastomer containing styrene, olefins and polyurethane. The main difference between them is that one is SI02 structure and the other is CC structure.
C. Processing Power
From the point of view of processing performance: silicone gel is usually formed by hydraulic press. Some liquid silica gel can be injected into injection molding machines, but it also contains a crosslinking of such a chemical process. The processing cycle is relatively long and waste scrap cannot be recycled. TPE is a thermoplastic material that can be injected and extruded. There is no networking. Overall, the processing cycle is shorter than silica gel and the waste can be recycled.
D. Temperature resistance
Silicone is superior to TPE in high temperature resistance. The 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.

Brooke-150cm Delicate Body Type Sexy Doll

e. Price
Silicone price is generally more than USD 5000 per ton while general TPE price ranges from USD 2000 to USD 5000. The price of TPE is cheaper than that of silicone materials, except for those special TPE materials, such as halogen-free flame retardants, food grade, etc.
F. Recyclable
From the cost point of view, the silicone waste cannot be recovered, while TPE waste, nozzle material, scrap, etc. can be fully recycled, so that TPE can further save costs. Both point 5 and point 6 show the reason why silicone sex dolls are more expensive than TPE sex dolls.
G. elasticity
In terms 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, however, TPE is physically crosslinking, so some permanent deformation occurs. High molecular weight TPE materials have better elasticity.
H. surface smoothness
In terms of surface smoothness, the surface smoothness of silicone has a wider range of hardness. In general, 20-80A silica gel materials have excellent surface smoothness, and the surface is not easy to stick to dust. The surface smoothness of TPE is slightly inferior to that of silica gel. The softer the TPE, the bigger the difference between smoothness and silicone.
I. Environmentally friendly
In terms of environmental properties, silicone is more environmentally friendly than TPE and has passed American food grade FDA 21CFR 177.2600. TPE excellent environmental protection materials contain no halogen, benzene plasticizer, bisphenol A, nonylphenol NP and polycyclic aromatic hydrocarbons (PAHs), in line with ROHS REACHHN EN71. The industry generally considers the US food test 21CFR 177.2600 to be very difficult to pass because it places higher demands on the TPE mixing system.
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