TPE is commonly known as thermoplastic elastomer.
It is used in the manufacture of many products because it can be easily shaped and injected, Tpe is also very soft and can be stretched up to 5.5 times its length.
Pro：
Dolls are cheaper
The texture is softer and more elastic, which gives the doll a much more realistic touch
The breasts and buttocks move when you swing your doll, which also provides a more realistic feeling
The material is more elastic, which makes the dolls more flexible and can therefore handle different sexual positions more easily
It is compatible with water based lubricants
Cons：
It is a porous material, which means it is more sensitive to stains on clothes.
Since it is porous, it retains humidity, so after cleaning it you need to make sure it is perfectly dry to avoid long-term mold.
It is more sensitive to heat. TPE may begin to lose its consistency or melt when it reaches more than 40ºC.
Silicone is a material that is mainly used in plastic surgery. In particular for breast implants.
And it is precisely for this reason that it is an optimal choice for the production of sex dolls.
Pro：
More realistic
Silicone retains heat, which helps to achieve more realistic sensations
Non-porous material, therefore very hygienic and easy to sterilize
Hypoallergenic
Cons：
Silicone dolls are more expensive
It is more rigid than TPE
It ages faster than TPE
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