These self-adhesive seals have been widely used by door manufacturers for many years, particularly steel door manufacturers. All are the shape of a teardrop, hence the name. They are manufactured from silicone. They are fitted in the frame stop across the head and down both sides of the door. Originally only 188S was available and this was designed to suit frame gaps of 3.2mm (1/8″). However 488S was introduced in recent years in response to the move towards smaller frame gaps. More recently 388S has been introduced to solve the problem of large frame gaps. They are all supplied with double sided backed PSA (pressure sensitive adhesive) tape.
SOUND
They have been tested in the UKAS laboratory at Salford University and 188S achieved 31 Rw and 388S achieved 36 Rw when used in conjunction with our 564A threshold. All sets independently tested to BS EN ISO 140-3: 1995 sound insulation tests by UKAS accredited laboratory. The University of Salford Test Report No. 132-1 dated 12.08.2010 refers.
TEMPERATURE RANGE
These seals have a functional operating range between -40°C to +80°C. Rebound is excellent when both hot and cold.
RESISTANCE
Silicone 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.
ADHESION
These seals are supplied with double backed self-adhesive tape. Provided the installation instructions are carefully adhered to, these seals have excellent adhesive qualities.
COLOURS
188S standard and 488S mini are available from stock in black, dark bronze, white and light grey. 388S large is currently only available in dark bronze. If you require a non-standard colour, for example beige, these may be available to special order if there are sufficient volumes.
