PTFE films provide a conformable release surface and exhibit a remarkably low coefficient of friction and nonstick properties. PTFE films have high temperature resistance and are virtually unaffected by all chemicals. At elevated temperatures, PTFE films retain excellent tensile strength.

Film applications include high temperature coil and capacitor wrapping, composite bonding, masking and conveyor release linings.

SILICONE

Perfect for extreme temperature applications, silicone adhesive perform in continuos service temperature from -73°C up to 260°C. Silicone based adhesive system exhibit good chemical resistance, retain electrical properties.

ACRYLIC

Acrylic adhesives perform in continuous operating temperatures from -40 °C to +177 °C. Benefits include exceptional solvent resistance, excellent adhesion to metal, superior weathering and aging characteristics.
Acrylics have an excellent shelf life and when exposed to elevated temperatures their ability to wet-out improves thus increasing both adhesion and tack properties. Acrylic dhesives will generally thermoset when exposed to heat.
The adhesive will then exhibit increased strength and improved thermal capabilities.

PVC

A general purpose release liner, PVC conforms well to tape and protects the adhesive during handling. Although these liners have good release properties and slit well, they are generally not used for die-cutting. Only available with silicone adhesive tapes, a yellow liner is standard. Corrugated liners are standard on most PTFE coated fabrics, whilst dimpled liners are used on the majority of thermal spray tapes.

POLYETHYLENE

These thin release liners not only conform well to tape, but slit and release easily, making them a sensible choice for die-cutting. Available with acrylic adhesive systems, a smooth blue release liner is standard on most acrylic-adhesive pressure sensitive products.

PAPER (COATED)

Paper is the ideal choice for die- and kiss-cutting. They have the advantage of lost cost and excellent release characteristics. Available with silicone rubber and acrylic adhesive systems, these beige release liners are specially treated to ensure excellent release properties.

FLUOROSILICONE

This release liner incorporates advanced release technology for use with silicone adhesives. As a flat, diecutable liner, it has exceptional release properties, making it an ideal choice for small or complex parts.

PTFE PRESSURE SENSITIVE ADHESIVE TAPE WITH HIGHER ELONGATION

PTFE HIGH MODULUS PRESSURE SENSITIVE ADHESIVE TAPE

Guarniflon TEKLEASE release film products have been specially formulated to suit a variety of individual composite process applications. Release films are used to separate and release the laminate from the vacuum stack following the cure of the composite component.

TEKLEASE films are supplied both as perforated and unperforated to allow resin and volatiles to bleed out of the laminate and coloured for easy identification. The selection of a release film should be based on the resin system being used, the temperature and pressure of the cure cycle, the shape of the component to be cured and the amount of resin bleed that is required.

For example, release films that have higher elongations, will be more suitable for complex curvatures, though tailoring the film is recommended to ensure no bridging of the film occurs. It is important to remember that the mechanical performance of a film is dramatically affected by the presence of the perforations. Rolls of TEKLEASE should be stored and handled in clean and dry conditions to prevent any contamination onto the final composite component.