Normal gummed paper tape + reinforcing threads are made up of a single strip of paper with at least 90% of Kraft fresh cellulose, as foreseen by the DIN 55405 standard; application of vegetable glue (starch gum, standard spreading) or animal glue (gelatine, spreading on request) on 1 side and 2 or 3 fibreglass threads laid and anchored on the glue. Two lengthwise threads are places at ~10 mm from the right and left edge of the tape, and the possible third between them in a sinusoidal manner.
Made of paper as mentioned (90% of Kraft fresh cellulose), it can be supplied in the natural colour (Havana brown) or white with bleached pulp, and available in different weights and widths as detailed below, satisfying a wide range of needs.
Fibreglass filament of 68 tex (1 tex = 1g/km).
Vegetable glue (starch gum) that with the correct humidification guarantees a rapid, secure and long-lasting grip of the tape on the clean, but not prepared, walls of the packaging. 21 g/m² of glue are applied (+ – 2g/m²).
Available with animal glue (gelatine) on request: exceptional rapidity and hold.
The tapes are normally supplied on 70 mm diameter cores for machinable reels and without cores for dispensers. The gummed side faces outwards.
If the tape is used in an environment with a temperature between 12°C and 17°C, hot water (35°C) should be used which improves the holding speed. Use normal water for humidification that is not too hard (< 30° French). Remove the minimum number of reels to be used from the package and conserve the remainder in a dry (50-60% R.H.) and temperate (10-30°C) location.