Masking tape, high temperature resistant, 3М 8991 Econom, base РЕТ 30μm, blue, 25.4mm x 66m

8.70 w/o VAT

Masking tape, high temperature resistant, 3М 8991 Econom, base РЕТ 30μm, blue, 25.4mm x 66m

SKU: 70006745395 Tag:


Masking tape 3M 8991 is a blue polyester tape with a silicone adhesive. It can be used in a large variety of high temperature applications including powdercoat masking, flashbreaker, and bag sealing applications. Additional applications include, splicing, tabbing, or roll closing silicone treated liners or materials Features
  • Polyester films offer excellent thermal, abrasion, and chemical resistance while maintaining their flexibility.
  • Blue color makes tape placement obvious for both application and removal.
  • Thin backing leaves a sharp paint line and some conformability.
  • Silicone adhesives offer high heat resistance compared to many rubber and acrylic adhesives, reducing failure due to softening, oozing, and adhesive transfer.
  • Silicone adhesives adhere well to tough-to-stick-to surfaces like silicone liners and fixtures coated with mold release.
  • Silicone adhesive removes cleanly from many surfaces.
  • Linered version available for die-cuts.
Application Ideas
  • Masking for powdercoat painting.
  • Flashbreaker tape when pulling through cured coating such as epoxies.
  • Holding and splicing difficult to stick to surfaces such as silicone liner.
  • Holding parts or sealing vacuum bags during processing.


Colour Blue
Backing material Polyester
Adhesive type Silicone
Width 24,5 mm/ 50,8 mm
Length (in roll) 66 m
Thickness 0.025 mm
Maximum operating temperature 204°С (for 30 minutes)
Adhesion to steel 34 N/100 mm
Tensile strength 508 N/100 mm
Elongation at break 100%
Storage conditions Store under normal conditions of 60° to 80°F (16° to 27°C) and 40 to 60% relative humidity in the original packaging material.
Time of expiry To obtain best performance, use this product within 24 months from date of manufacture.

Additional information