Ideal for a tight, tough and permanent resilient seal that is both water tight and electrically insulating, even when elongated. Designed for splicing or terminating wires and is rated for high and low voltage applications to 69 kV. Merco M811 is self-adhering and self binding.
Merco M 811 and M 815 are Self Binding High Voltage Ethylene Propylene Rubber (EPR) Splicing Tapes suitable for temperatures from -40°C to +90°C for continuous use and up to 130°C for intermittent use. M 811 is similar in spec. and performance to 130C (linerless) and M 815 to 3M Scotch 23 (linered) and Plymouth L969.
Merco M 811 and M 815 are capable of being applied either stretched or not stretched with no loss of physical or electrical properties. It will not split, crack, slip or flag when exposed to various indoor or outdoor environments. It is compatible with all synthetic cable insulations. Merco M 811 and M 815 have a shelf life of 5 years.
Application Instructions: Merco M 811 or M 815 should be applied in successive half-lapped level wound layers until desired build-up is reached. It should be applied like any rubber tape; that is, the side of the tape wrapped inside the roll should be applied outside on the splice (tacky side up). This will help prevent the roll from getting progressively further away from the work area. To eliminate voids in critical areas, highly elongate M811 or M815 tape. Stretch tape in critical areas just short of the breaking point; doing so will not alter its physical or electrical properties. In less critical areas, less elongation may be used. The tape should be stretched to a minimum of 3/4 its original width. Always attempt to half-lap to produce a uniform buildup. When using M811 or M815 tape for splicing cable above 15 kV, always highly elongate the tapethroughout the entire splice.
We stock common widths from 3/4" to 2" wide, and can custom cut other sizes.