Tac-Tape A7039-1 Dark (3 Thou)

Tac-Tape A7039-1 Dark is a PTFE coated glass fibre product with a high PTFE content and silicone adhesive, with a corrugated yellow backing liner. Mainly used as a high temperature release material in the packaging, plastics and composite industries as well as a liner in mould release applications.

Tac-Tape A7039-1 Dark (3 Thou)
Tac-Tape A7039-1 Dark (3 Thou)

Specifications

Key technical specifications for Tac-Tape A7039-1 Dark are summarised below.
Minimum Operating Temperature
-73°C
Maximum Operating Temperature
260°C
Food Grade
No
Adhesive Type
Silicone
Substrate Type
Glass
Nominal Thickness
3 Thou (78 µm)
Formats Available
Tape, Roll

Tac-Tape A7039-1 Dark is a PTFE-impregnated glass fabric tape featuring a high-temperature silicone adhesive. It delivers a durable, non-stick surface with excellent chemical resistance and a broad operating temperature range from -73 °C to 260 °C.

Dotmar provides this tape in custom slit widths to exact specifications, ensuring consistent quality and fast turnaround from local stock for demanding industrial applications.

Key Features

  • Silicone adhesive for high-temperature bonding
  • PTFE coated glass fabric substrate
  • Operating temperature range: -73 °C to 260 °C
  • Thickness: 3 Thou (78 µm)
  • Available in slit rolls from 12 mm to 980 mm wide
  • 30 m roll length (15 m roll available on request)

Typical applications include release surfaces on heat sealing bars, lining for chutes and hoppers, electrical insulation, and anti-stick wrapping for rollers. It is widely used in food processing, packaging, aerospace, and general industrial environments where a non-stick, high-temperature, chemically inert surface is required.

Sizes Available

Slit Rolls: min. 12mm up to max. 980mm wide x 30m long (15m roll available on request)