Thermoplastic elastomers (TPE) are a mix of polymers that contain both rubbery and elastic characteristics. It is also cheaper than silicon while it gives the same quality of material needed to make sex dolls. This makes it be preferred material in the manufacturing industry. Silicone on the other hand is a rubber that has been achieved by mixing polymer and carbon. It is normally used in plastic surgery.
♦ Similarities
Both are soft in texture
Both can keep in heat
Both do not contain allergens
Both look more real
♦ Differences
Silicon is softer than TPE
TPE has no smell at all. Silicon has a waft of it
TPE is more elastic while silicon is a bit rigid
Silicon cannot be compressed while TPE can
TPE is cheaper while silicon is expensive
Silicon is non porous while TPE is thus requiring high maintenance
Silicon ages more quickly than TPE
Silicon is sticky while TPE is flexible and can be easily handled
TPE dolls are better and give more value for money for sex dolls than silicon because of their long lasting characteristic but would require keen maintenance which sometimes can be hard to achieve.