Abstract: A radial sealing cap (10) that comprises a first layer (12), wherein the first layer (12) is of a first material having a first Young's modulus, the first layer (12) has a first side (14) facing in a first direction and a second side (16) facing in a second direction, the first layer (12) has a circular first rim (13) defining a plane (17) in which the first rim (13) is embedded, and the first layer (12) has a slope relative to the plane (17) at the first rim (13). The sealing cap (10) further comprises: a second layer (24) attached to the first side (14) of the first layer (12), wherein the second layer (24) is of a second material having a second Young? s modulus that is lower than the first Young' s modulus, and the second layer (24) protrudes radially from the first layer (12) at the first rim (13).

Abstract: Then invention relates to seals, methods for making seals and devices for making seals wherein the seals comprise a rigid substrate with two substantially parallel major surfaces (106, 108) wherein said surfaces are separated by a cut surface (110). The cut surface (110) comprises a first burnished region (119) of height p1 and a second burnished region (121) of height p2 wherein said first and second burnished regions are separated by a rough breakout (123) of height b.

Abstract: Then invention relates to seals, methods for making seals and devices for making seals wherein the seals comprise a rigid substrate with two substantially parallel major surfaces (106, 108) wherein said surfaces are separated by a cut surface (110). The cut surface (110) comprises a first burnished region (119) of height p1 and a second burnished region (121) of height p2 wherein said first and second burnished regions are separated by a rough breakout (123) of height b.