ZERO Silicone 90° Twin Tee Fins Self-adhesive Seal, Black

A range of self-adhesive silicone fin seals to complement Zero teardrop seals 188S, 488S and 388S. The 1771S and 1772S have been developed specifically as meeting stile seals in response to requests from steel door manufacturers to solve the problem of sealing meeting stiles of pairs of doors. With Tee fins at 90 degrees, both can be fitted to either the astragal or the leading edge on a pair of doors. The 1773S and 1777S have Tee fins at 75 degrees and can be used as perimeter seals fitting into the rebate across the head and down both sides of the frame. They are all supplied with double sided backed PSA (pressure sensitive adhesive) tape and are suitable for internal and external doors. These products are currently only available in black, although they may be available in dark bronze, white and grey depending on quantity.

FIRE AND SMOKE
Following testing, all four seals have been positively assessed for use on insulated or uninsulated fire rated timber and steel doors, for a duration up to 240 minutes (depending on door construction) to BS EN 1634-1. This range has also been included in a series of smoke leakage tests and achieved the requirements of BS EN 1634-3. Copy of assessment Report 193454 available upon request.

NEW TESTING - BI-DIRECTIONAL
Following successful independent third party testing, our self-adhesive fire & smoke seals can be installed on insulated and uninsulated steel and timber based fire resisting doorsets, regardless of the exposure direction. In accordance with BS EN 1634-1 for a duration of 240 minutes for steel doorsets, and 60 minutes for timber doorsets.
We had noticed a call within the industry for evidence from both sides, so moved quickly to obtain this evidence. Now, whether the door opens towards or away from the risk of fire, our self-adhesive silicone seals can be specified with confidence.

NEW TESTING - UL94 (SELF-EXTINGUISHING)
The silicone rubber used to manufacture all of our self-adhesive silicone fire & smoke seals has now been tested to the popular flammability standard, UL94. This testing was carried out to, in particular, prove the self-extinguishing properties of our silicone.
The silicone performed exceptionally and was classified as V-0, best classification, meaning the tested material did not flame for more than 10 seconds after being burnt. In fact, in most cases flaming was much less than 10 seconds, if at all. A copy of test report 430491 is available upon request.

SILICONE PROPERTIES
Manufactured from silicone, these seals have a good resistance to acid, oil, gasoline, animal/vegetable oils and water absorption. They also have excellent resistance to ultraviolet rays, sunlight ageing, oxidation, ozone, heat ageing, heat, cold and flame.

TEMPERATURE
The adhesive on these fin seals will have the best end use high and low temperature adhesion if installed to a clean dry frame between 18°C - 35°C. For proper performance do not install on a frame at less than 10°C or more than 35°C. Ensure all materials are at the same temperature before bonding. These seals have a functional operating range between -40°C and +80°C. Rebound is excellent when both hot and cold.

SURFACE PREPARATION
The surfaces should be clean, dry and free of dust, grease and oil before the installation process begins. If cleaning is necessary only use a clean cloth and a solvent that is compatible with the materials, such as isopropanol (isopropyl alcohol or IPA), ethanol or methanol (methylated or surgical spirits). Make sure to check for any impediments (dust, dirt, oil, grease, etc) or loose paint and remove them from the surface area.
The surface must be completely dry before the installation process begins. We recommend that gasketing be installed after the doors and frames have been painted to the final finish and the paint has dried. Paints with plasticisers should be avoided as these can damage the adhesive layer. Paint should be dry and uniform (quick drying primers are not recommended). For application to timber frames, the painted or finished surface must be non-porous and smooth.
DO NOT STRETCH THE SEAL DURING INSTALLATION. The adhesive is designed to gradually set to a high peel strength so that immediate removal and resetting can be done if an error is made in the initial placement. Do not reset after one hour. Full set is reached in approximately 24 hours.