Unverified80% confidenceDecision RuleTime unknown
TPE材质密度≥45kg/m³才有足够回弹和支撑，低密度TPE长期使用会永久性塌陷凹坑；密度过低的垫子重量往往低于1kg，可作为间接判断依据
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80%
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Long-term
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UnverifiedTPE材质密度决定耐用性，双层高密度TPE（重量约1.2-1.5kg/5mm）比单层廉价款抗回弹、不易压出永久性凹坑，掂重量可初步判断品质91% similarUnverifiedTPE垫的密度直接影响耐用性和防滑：双层高密度TPE（重量约1kg以上/6mm）比单层轻薄款抗踩踏变形能力强，长期回弹更好89% similarUnverifiedTPE材质密度≥180kg/m³且回弹率高的垫子不易留手肘/膝盖压痕，密度低于此值的TPE垫长期按压会永久凹陷，寿命通常不足1年87% similarUnverified密度约22kg/m³属于中低密度，柔软易弯折、填充贴合性好，但抗压强度有限，不适合做承重支撑垫78% similarUnverified充气脚踏垫承重看材质厚度：单人款TPU/PVC厚度需≥0.3mm，双人或加厚款需≥0.5mm，低于0.3mm的超轻款耐磨性差易被石子扎破76% similar
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