ROSIL - silicone profiles manufacture of heat and weather resistant silicone, rubber and plastic hoses, as well as profiles and consumer goods (area of electrical engineering, doors and windows, medicine, etc.) for sealing and insulation

SILICONE SLEEVINGS

Silicone sleevings are extruded from a high-quality silicone elastomer and hot-air cured in order to provide optimal properties.

Owing to their chemical and physical properties they are suitable for a wide range of applications. In comparison with other elastomers these sleevings practically preserve their properties in the temperature range from ?60°C to +250°C, especially electrical properties, therefore they are indispensable as insulation material in the electrical engineering and electronics.

Silicone sleevings are resistant to weather influences (ozone, UV, corrosion), ageing and are physiologically harmless (special elastomers). They are only slightly affected by weak acids, alkali, salts, oxidants and vegetable oils. There are different types of silicone rubber available, which depends on the purpose, for which sleevings will be used.

RANGE OF APPLICATION

Sleevings are used for insulation of wire and braided conductors in the electronics, electrical machines and devices and in the industry of illuminants, particularly for high-frequency applications and higher operating temperatures. Should it be difficult to apply a sleeving on longer wire ends, we recommend using an agent for reducing friction such as talcum powder. As sleevings are highly stretchable, they can be easily pulled over by means of increased air pressure.

Since these sleevings are applied in the food industry, the industry of household appliances and the medicine (e.g. inhalators) too, the material should be thermally treated and absolutely irreproachable as well as resistant to mildew and bacteria. Silicone sleevings may be sterilized in hot air or hot steam up to 140°C; the procedure may be repeated. The food-approved sleevings are not to be talced.

DIMENSIONS

Sleevings with the exception of insulating sleevings are manufactured from internal diameter of 0.3 mm to external diameter of 30 mm, with custom-made wall thickness.

Insulation sleevings are manufactured in accordance with the standard IEC 60684-3-121/124 of internal diameters, wall thickness and tolerances as follows :

Internal diameter (mm)	Tolerance (mm)
0,3	+0,10 -0,05
0,5 0,8	+0,15 -0,10
1,0 1,5 2,0	+0,20 -0,15
2,5 3,0 4,0 5,0	±0,20
6,0 8,0 10,0 12,0	±0,25
16,0 20,0 25,0	±0,50

Wall thickness (mm)		Breakdown voltage (min) (kV)
Nominal size	tolerance	Ambient temperature
0,1	+0,10	1,3
0,2 0,4 0,5 0,7 1,0	+0,15 -0,05	2,4 4,7 5,5 8,0 10,7
1,5 2,0	±0,20	16,0 20,0

PHYSICAL PROPERTIES
Tensile strength	min 5,5 Mpa
Extension	min. 200%
Breakdown strength	> 10kV/mm
Specific resistance	min 1 x 10¹¹ MW
Shore hardness	40 - 70

COLOURS

Sleevings are manufactured in black and translucent colour, other colours on order.

DELIVERY FORM

Sleevings are delivered on rolls in lengths of either 25, 50 or 100 m; sleevings of larger dia (over F12 mm) are supplied by agreement.
Thick-walled sleevings can be supplied cut in lengths from 1 mm on.

Should you not find a proper answer to your question, please feel free to contact or visit us. 25 years of experience is a guarantee that we will find a proper solution to your problem as we have had for numerous business partners.