A polymer used here for the internal friction liner.
What it is
Nylon is a family of tough, slightly flexible engineering plastics known for wear resistance and low friction. It is used widely for gears, bushings and sliding parts. In EDC, it often appears as internal liners, washers and spacers that sit between moving metal parts, and as material for cases, straps and lanyards. The exact type depends on the brand.
How it feels in your EDC
As an internal friction liner, Nylon softens the contact between moving parts and can give movement a smooth, controlled resistance. It also damps some of the sharp metal-on-metal sound. You rarely see it from the outside, but it can noticeably shape how a piece slides, stops and sounds.
Care & aging
Nylon does not rust and resists most oils, but it absorbs some moisture, which can slightly change its fit and feel. With heavy use, liners slowly wear and may need replacing; many brands offer spare parts. Keep it free of grit and avoid strong acids and harsh solvents. Wipe it with a dry cloth.
是什么
尼龙（Nylon）是一类坚韧、略带弹性的工程塑料，以耐磨和低摩擦著称，广泛用于齿轮、衬套和滑动零件。在 EDC 中常作为位于运动金属零件之间的内部衬层、垫圈和垫片，也用于收纳盒、挂绳和腕带。具体型号取决于品牌。
上手感受
作为内部摩擦衬层，尼龙能缓和运动零件之间的接触，让移动带有顺滑、可控的阻尼感，也能减弱部分金属碰撞的尖锐声音。从外面很少看得到它，但它会明显影响作品滑动、停止和发声的方式。
保养与老化
尼龙不会生锈，耐受大多数油脂，但会吸收少量水分，可能略微改变配合和手感。高强度使用下衬层会慢慢磨损，可能需要更换；很多品牌提供备件。避免砂粒，避免强酸和强溶剂，用干布擦拭。
