A silicone free 0.09 mm (3.5 mils) teflon tape used in lining of composite bonding tools frames where there is concern of silicone contamination.

Can also be used for masking and bundling of composite parts prior to bonding operations. For use in composite mould as a release barrier in autoclave operations.

Tape is applied directly to moulds and is removed after the curing process as needed.

Tape 5498 is used to cover and protect composite tooling frames.

This release surface tpe is used because it does not transfer silicon to the toolong surface that contaminates fabricated parts.

It also withstands the high autoclave temperatures ithout failing.

PTFE offers a low surface energy film that has no affinity for the epoxy prepeg chemistries and acts as release film while offering a very high degree of conformability.

This is an important characteristic, because most moulds are not flat and the film must conform to the mould.

Tape 5498 is applied to the tool for its release properties, there where it is inconvenient to apply release coating.