SIC HUNGARY RUBBER MANUFACTURING LTD. - Producer of industrial rubber since 1936

SIC Hungary offers an extensive range of silicone coolant hoses in different sizes, shapes and colors. In addition to our custom coolant hoses with unique shapes and coloring we also produce standard blue Silicone/Polyester hoses that perfectly meet the criteria of SAE J20 R1 Class A. Depending on the specific pressure requirements of industrial environments our hoses’ thickness can be increased or decreased by changing the number of Polyester fabric layers in the hose. Our hoses have been intensively tested for 6 years by Erik Hugyecz professional motocross racer both in European and Hungarian Championships. He won the Hungarian championship two times. SIC chose motocross industry for testing because it has the highest RPM ranges, high engine heat and very intense movement of parts. This was an important part of our research and development cycle.

SIC also provides you with a unique range of custom silicone radiator hoses with full resistance against any kinds of acid based coolants. We use uniquely designed raw materials to reach highest resistance possible against anti-freeze coolants – mainly used in automotive industry. With SIC’s powerful and extra-long-living silicone radiator hoses you can avoid expensive failures that would occur in case of using average blue coolant hoses.

At SIC’s rubber factory, a wide range of quality marine hoses are manufactured for marine applications as well. We always make sure, each of our straight, elbow and bellow hoses meet SAE J2006 R3 requirements. To make our hoses perfectly resistant against extreme heat up to 260 degrees we reinforce silicon hoses with 4-6 plies of Meta-aramid. We produce hoses for marine applications with high attention on mechanical effect on rubber equipment caused by the movements of ships.

Our high-end turbo hoses are made of FKM fluorocarbon or FVMQ fluoro-silicone transferring high-pressure air. We have various automotive companies among our clientele using SIC’s strong and pressure-resistant silicone turbo hoses for decades.

Several industries require flexible yet strong spiral silicone hoses. Bending radius increases exceedingly when our high-quality spiral hoses are reinforced with a 1,2 mm thick metal fiber, making hoses flexible – even up to 160 degrees – and super-strong at the same time.

Our ‘Organic-Acid-Technology’ hoses are designed to resist extended life anti-freeze coolants containing sebacate or 2-ethylhexanoic acid. In this case, standard blue coolants hoses will fail to provide the necessary protection. Our OAT hoses are available in 3 different models: Silicone Bolt, EPDM+ and Silicone Bolt+. We recommend the 4-ply reinforced Silicone Bolt with a temperature range of -50°C to +215°C for gases that permeate the silicone liner and damage polyester fabrics. In case of potassium/sodium 2-ethylhexanoic acid presence in the coolant, our EPDM+ hose with a temperature range of -40°C to 150°C is an ideal choice with a special grade of EPDM reinforced with 1-ply Aramid. Silicone Bolt+ hoses are manufactured with an impermeable inner liner that withstand the harshest gases and chemicals that could otherwise permeate a silicone liner. This hose has a temperature range of -25°C to 225°C.

We have developed our silicone turbo charger / CAC hoses to always fit the requirements defined by SAE J20 Class A. Our silicon hoses can be ordered in different sizes and shapes so they are able to connect different kinds of engine mounted charge air cooler system parts. We produce charge air hose with convoluted shape that perfectly endure vibrations and works well even in case of mis-alignments. There are tow ways of manufacturing charge air hoses. Meta-aramid reinforced silicone hoses withstand a temperature range of -56 to +250 degrees Celsius while Polyester reinforced hoses withstand a range between -56 and 180 degrees Celsius. Materials Available with the option of fluoro-silicone or FKM inner linings for added resistance against oil and acid fuel. Hoses with metal fittings and crimped ends also can be developed on demand.

EPDM hoses are designed for low-temperature industrial applications. One of the main advantages of using EPDM hoses is its price-competitiveness. EPDM hoses are much cheaper than silicone products while bringing the same mechanical resistance characteristics. What differs it from silicone hoses is its lower resistance against heat. SIC produces both reinforced and non-reinforced EPDM hoses. Reinforced version Reinforced hoses are commonly used in industrial processes operating with extremely high pressure or vacuum.

For transferring air, water or fuel SIC offers a variety of rubber hoses in SBR, PVC/NBR, Hypalon®, Viton®, Neoprene ® (CR), Vamac ® (AEM) and NBR. These hoses are usually reinforced with Polyester and Nylon however Aramid reinforcement is also a tested and working solution for high temperatures. We also produce non-reinforced tubes in various sizes and shapes for industries with lower pressure requirements. Furthermore, we are happy to develop compounds upon request to achieve special acid resistance as well. Reinforced version Industries operating with extremely high pressure or vacuum most commonly use reinforced hoses.

We provide railway industry with high-quality, custom designed, flame retardant hoses. These hoses are generally used for air-conditioning, ventilation, heating, brake-cooling, roof drainage and engine applications. Even if it burns our retardant hoses have no smoke emission, which makes it absolutely unique. Our custom hoses withstand a temperature range of – 50 up to +250 degrees Celsius (depending on material and construction). Flame retardant hoses are made of bot silicon or EPDM. Reinforced version Industries operating with extremely high pressure or vacuum most commonly use reinforced hoses.