| abstract |
In response to miniaturization, no gushing occurs during installation, and a high-performance gasket exhibiting a sealing property. The gasket 1 uses a material having a hardness in the range of 30 to 80 degrees (JIS durometer type A). W1 / W0 < O.9, where W1 is the width at half the height of the bonding width of the base portion 1a from the bonding portion of the base portion 1a to the tip of the main bead portion 2, W1. When the height from the bonding portion of the base portion 1a to the tip of the main bead portion 2 is H, 1.15 < H / W0 < 1.80 is satisfied, and the bonded portion of the base portion 1a is satisfied. When the length of the non-adhesive part around the excluded cross section is L, L / WO? 3 is satisfied, and the compression ratio when compressed is 13.5% or more. |