Why are silicone dolls so heavy?
Many doll owners feel that the doll is too when they first receive it. They can easily lift their ex-girlfriend, who weighs a hundred jin, but they feel that they have become a twig when they pick a solid doll that weighs more than sixty jin! The main reason for the high weight of a silicone doll is the combined effect of the physical characteristics of the material and the design to replicate the shape of a real person. This can be broken down into three key aspects to better understand the essence of “heaviness”:
一. Basic reason: Highdensity core material
The main material of the silicone doll is medical-grade silicone (or TPE/TPR class of elastic materials), and its physical density is higher than of human tissues. The average density of the human body is close to water (about 1g/cm³), while the density of silicone is typically between 1.-1.3g/cm³ (the density of high-purity silicone may be higher). This means that: in the same volume, the weight of silicone will heavier than that of the same volume of human flesh. For example, a silicone doll with a height of 155-165cm, just the volume of silicone filled the trunk and limbs is about 30-40L, calculated at a density of 1.2g/cm³, the weight of the silicone part alone reaches36-48 jin; plus the internal supporting metal skeleton (mostly stainless steel / aluminum alloy, weighing 5-10 jin), hair, clothes and accessories, the total weight can easily exceed 50-60 jin, and because of the high density of silicone, the “heaviness” felt when holding it be more obvious than that of a real person of the same weight.
二. Key reason: Sacrifice lightweight design for “shape replication”
In order to be close the human body curve (such as the fullness of the chest, the three-dimensional sense of the buttocks, and the uniformity of the limbs), the structure of the silicone doll must give priority to ensuring “shape fixation” rather than “weight reduction”, which further increases the weight:
No hollow space for weight reduction: The body has cavities such as the thoracic cavity and abdominal cavity, and the inside is a “non-solid structure” of bones and internal organs, so the proportion of “weight-bearing flesh” is low; but in order to avoid the collapse of the shape of the silicone doll (such as the arms drooping without deflation, and the remaining firm), in addition to the metal skeleton, the rest of the parts are almost filled with solid silicone, and there is no extra cavity to reduce weight.
“Double gain” from the skeleton and silicone: The metal skeleton is the core to ensure that the doll can take a sitting or standing posture, but it has its own weight; at the time, in order for the silicone to closely adhere to the skeleton (to avoid the “skeletal ridge feel” when touched), at least 1-2cm thick layer will be wrapped outside the skeleton, which is equivalent to the “weight of the skeleton weight of the silicone” superimposed, further increasing the overall weight.
三. Auxiliary factors: “Passive load-bearing” amplifies the sense of weight
Although this is not the reason forhigh actual weight”, it will make the feeling of “heaviness” more intense. Silicone dolls are completely passive objects and cannot actively cooperate to disperse weight as people do: when a real person is hugged, they will actively wrap their arms around the neck of the hugger and their legs will be close to the waist of the hug, concentrating the center of gravity on the waist and abdomen of the hugger (the core power area), which is equivalent to “helping the hugger to bear part of force”; while the limbs and torso of the silicone doll will not actively adjust their posture, and there may be cases where the arms droop (pulling the shoulders) and legs are separated (stretching the distance of the force), and the weight is dispersed to the arms, shoulders and other “non-core power parts”, subject feeling “heavier than the actual weight”, which indirectly reinforces the impression that “the doll is very heavy”.
In short: the “heaviness” of silicone doll is the inevitable result of “high density material solid filling design”, and the characteristic of “passive load-bearing” will make this weight more difficult to bear it is not that it is “overweight”, but that its source of weight and the way it bears force happen to fit the “weak points” of human power, which make people feel heavy.
