Polyamid polishing masking tapes foil in brown for watchmakers, transparent for covering surfaces during polishing or grinding on workpieces. You can use this for: bracelet, bezel, clasp, buckle, jewelry and etc. Kapton masking tapes are temperature resistant up to 400 °C and easy to remove. Technical details: Width: 4.0 mm Length: 33.0 m Thickness including adhesive: 0.055 mm Colour: brown-transparent Temperature-resistant up to 400 °C Temperature resistance:- up to 250°C = approx. 2 - 5 min.- up to 400°C = approx. 1 - 2 min.