Lamination Bond Strength

The lamination bond strength of flexible laminates is determined in accordance with ASTM F904 - essentially the same test procedure as that described in ASTM F88 used to determine seal strength.

After initiating de-lamination between the relevant film plies, the average force required to peel the two "legs" of the test piece is recorded. A static loading methodology is also used when the issue relates to long term creep failure.

Although usually determined at ambient laboratory conditions, Smithers Pira is able to determine such tensile properties at sub-ambient or elevated temperatures using a "hot box" attachment to the tensile test apparatus.