FAQ

Silicone rubber is an elastomer composed of silicone together with carbon,oxygen and hydrogen.

IN 1930, JAMES FRANKLIN HYDE RAN THE FIRST RESEARCH TO PRODUCE COMMERCIAL SILICONES.

Silicon is an element which is present in silica (sand) while silicone rubber is manufactured by extracting silicon from silica and passing it through hydrocarbons. It's then mixed with the other chemicals to create silicone.

A silicone or polysiloxane is a polymer made up of siloxane (−R2Si−O−SiR2−, where R = organic group).

Silicone rubber has wide temperature range from -80 to 300°C so this elastomer can be used for wider range of products which will be able to sustain the above given temperatures in various industries.

Transparency Wide Service Temperature Range Resistance to Natural Ageing (Oxidation & UV) High Fire and Flame Resistance Low Temperature Flexibility Hydrophobic in Nature Good Chemical Resistance High Dielectric Strength & Excellent Insuating Properties Excellent Processibility Non-Toxic in Nature Biologically Neutral

The various types of silicone rubbers include room temperature vulcanize, liquid silicone, fluorosilicone and high-consistency rubber.

VMQ(Vinyl Methyl PolySiloxane),PVMQ(Phenyl Vinyl Methyl PolySiloxane),FVMQ(Fluoro Vinyl Methyl Polysiloxane)

There are two types: 1.Platinum Curing , 2.Peroxide Curing

Curing agent is used to vulcanize the raw elastomers at higher temperature by creating crosslinks .

Platinum Cured Silicone has Non-yellowing & Clearer appearance, Good Tensile & Tear Strength compared to Peroxide Cured Silicone and It is preferred by the pharmaceutical, food and beverage industries due to its transparency and lack of peroxide by-products ;On the other hand Peroxide is Cost-effective,Easy to produce & Requires lower temperature to cure,Longer Shelf-life.

Post-curing is the process done on the silicone products after curing which is mandatory so to eliminate odour, stickiness and as well as to obtain optimum properties.200°C @ 4 hours

FLUOROSILICONE ARE MATERIALS MADE OF SILICONE ELASTOMER BASE THAT HAS BEEN FLUORINATED TO PREVENT IT FROM DEGRADING WHEN IT COMES INTO CONTACT WITH CORROSIVE CHEMICALS ,FUELS & HARSH ENVIRONMENTAL CONDITIONS.

MAIN DIFFERANCE IS OF FLAME RESISTANCE AND FLUOROSILICONE HAS BETTER SERVICE LIFE COMPARED TO SILICONE BUT IT IS MORE EXPENSIVE AS COMPARED TO SILICONE.

20 YEARS AND MAY BE ABOVE

Extrusion is a manufacturing process that involves forcing base metal through a pre-shaped die to create objects with a specific shape and profile.

Co-extrusion is an extrusion process used to obtain a product that combines two textures : one material is extruded and continuously filled with another to form a single product.

The process of shaping as well as curing the pliable raw compound (Rubber) by giving temperature and pressure.

Class 10000 (ISO 7) clean room is a hard-sided wall manufactured facility that utilizes HEPA Filteration systems to maintain air cleanliness levels of a maximum of 10000 particles (>=0.5µm) per cubic feet.

GENERALLY , SHRINKAGE IS THE MEASUREMENT OF DIFFERENCE BETWEEN TWO CORRESPONDING LINEAR DIMENSIONS OF BOTH THE RUBBER MOLD AND THE MOLDED RUBBER PART AT ROOM TEMPERATURE. ALL RUBBER MATERIALS WILL DISPLAY SOME LEVEL OF SHRINKAGE AFTER THE RUBBER PART IS MOLDED AND SUBSEQUENTLY EXPOSED TO COOLER TEMPERATURES.

No,sponge has lower hardness(10-40Shore A) compared to solid(sponge feels soft in hand) & also compounding for sponge is different than solid, in case of sponge we have to add blowing agent.

Approx. 24-36 hours

Blowing agents are specially used in Sponge or Foam Industries, which decompose by heat and mechanical stress to produce blowing gases for dispersion into the polymer melt.

THE SILICONE RUBBER IS SEPARATED INTO A TWO-PART PLATINUM-CURED ELASTOMER WHICH IS WHAT IS CALLED THE LIQUID SILICONE. UNLIKE SOLID SILICONE. THE LIQUID SILICONE IS IN A LIQUID STATE AND HAS HIGH FLUIDITY, MAKING IT THE PERFECT MATERIAL CHOICE FOR INJECTION MOLDING.

Tube, Cord, Strips, Squares, Customized Profiles

THE RUBBER MANUFACTURERS ASSOCIATION (RMA) HAS DEVELOPED TOLERANCE TABLES WITH RANGES TO PROVIDE COMMUNICATION BETWEEN USER AND PROVIDER ACROSS A WIDE RANGE OF INDUSTRIES. THESE ARE HELPFUL WHEN DESIGNING AND PRODUCING A PART.

The silcone rubber which include additives such as conductive carbon that allow electric current to flow through the rubber.

Silipure is Biomedical Grade of Silicone Rubber where platinum is used as curing agent Compound provided by Sevitsil.

Because of silicone's inherent propertiesre like dielectric strength, flame retardant, low temperature flexibility, biocompatibility etc. it is irreplaceable with other elastomers.

Temp range of normal silicone rubber is -80 to 280°C and temp range of flourosilicone rubber is -50 to 250°C.

Fire retardent grade has presence of aluminium hydroxide which provides the flame retardant property & other silicone grade are regular grades like high consistency rubber which has no presence of it.

BIOCOMPATIBILITY IS A GENERAL TERM DESCRIBING THE PROPERTY OF A MATERIAL BEING COMPATIBLE WITH LIVING TISSUE. BIOCOMPATIBLE MATERIALS DO NOT PRODUCE A TOXIC OR IMMUNOLOGICAL RESPONSE WHEN EXPOSED TO THE BODY OR BODILY FLUIDS.

DIELECTRIC STRENGTH IS DEFINED AS THE ELECTRICAL STRENGTH OF AN INSULTING MATERIAL. I DIELECTRIC STRENGTH IS MEASURED AS THE MAXIMUM VOLTAGE REQUIRED TO PRODUCE A DIELECTRIC BREAKDOWN THROUGH A MATERIAL.

HCR(High Consistency Rubber) mainly used for extruded tubings,VMQ(VinylMethylPolySiloxane) & Fluoroelastomers of Silicone(FVMQ) can be used in various applications like in Moldings & Gaskets,O-rings etc though Fluoroelastomers mainly used where Flame retardancy is required.

Yes almost & we can customize our die/mold according to that.

Silicone rubber can be used indefinitely at 150°C with almost no change in its properties.

TEMPERATURE, HUMIDITY, MECHANICAL/ABRASION, PRESSURE FROM STACKED ITEMS ARE ALL IMPORTANT FACTORS THAT CAN AFFECT THE SHELF LIFE OF/ DAMAGE SILICONE RUBBER. UNDER IDEAL CONDITIONS SILICONE EVEN AFTER A CONSIDERABLE TIME WILL ARGUABLY STILL BE IN THE SAME CONDITION IT WAS ON THE DAY OF MANUFACTURE AND WILL BE FIT FOR THE PURPOSE FOR WHICH IT WAS MADE

SILICONE RUBBER IS HIGHLY INERT AND DOES NOT REACT WITH MOST CHEMICALS AND ISN'T AVAILABLE TO PARTICIPATE IN BIOLOGICAL PROCESSES ALLOWING IT TO BE USED IN MANY MEDICAL APPLICATIONS INCLUDING MEDICAL IMPLANTS.

It's Complex shape/Geometry & critical tolerance requirements for the end product made from the dye.

Fortunately, silicone can be dyed any color you want and looks fantastic when done properly.

Silicone is not adversely affected by Prolonged submersion in either Fresh or Salt Water.

Yes, for that we do have inprocess and final inspection of products as well as pre dispatch inspection.

No, because peroxide curing agents are toxic in nature so it cannot be recommended to use in animal body.

Base Rubber - Silicone Rubber, Filler - Silica, Curing Agent - Peroxide/Platinum

SEVITSIL IS THE BRAND NAME OF THE COMPANY SURESH ENTERPRISES, WHERE SE- STANDS FOR SURESH ENTERPRISES VIT- STANDS FOR VITON(FKM) & SIL- STANDS FOR SILICONE.

Compatibility Chart is all about various chemical's compatibility with elastomers(rating wise:A-Excellent , B-Good , C-Fair , D - Poor Compatibility)

If it goes into trachea(air tube), the child may have symptoms like sudden bout of coughing, difficulty in breathing, choking. You should see a doctor immediately.If the foreign body has gone into the mouth and the child has swallowed it, he may not develop any symptom...It will come out eventually.

4 hours @ 200°C

The highest voltage for 0.5 mm wall thickness of silicone material can sustain 16 KV and for 1 mm wall thickness it is 28 KV.

Yes, We can pass the current through the Silicone Rubber which is known as Conductive Silicone Rubber & it is made by adding Conductive Carbon Black.

Yes, silicone is used as exterior cover coated over the wires as an insulator.

THE DENSITY OF SILICONE IS 1.2 G/CM^3

A peristaltic pump (Roller Pump) is a type of positive displacement pump used for pumping a variety of fluids through a Silicone Tube. This is working on Peristalsis principle.

Yes silicone rubber has outstanding oil resistance.

Silicone is more expensive than most rubber types because it is a speciality high performance polymer with outstanding qualities.

Yes in Some Aspects like it has outstanding heat resistance, superior flexibility & Fire resistance compared to PVC.

Yes

We are manufacturing the tubes having ID ranging from 0.15 mm to 350 mm.

FBD (Fluid Bed Dryer) Inflatable Gasket functions like a cycle tube. When inflated, it seals the bowl and ensures proper sealing.

Silicone Multilumen Tubings are frequently used specifically for catheters and endoscopes in nutrition, drainage, urology or dialysis.

Yes, Because silicone is chemically stable, non toxic and allergy free material.

We are manufacturing silicone profiles which covers the LED Lights & make it waterproof.

Yes we can bond silicone to plastic and metals.

Due to its complex polymerization process.

In a moisture free condition avoiding direct sunlight/intense artificial light.

UL 94 is a polymer flammability standard released by the Underwriters Laboratories (USA).

It is a test to identify silicone specimen to fall in which UL-94 Test (V-0, V-1, V-2) as per UL standards

Withstands higher temratures(From -13℉ to 446℉ ),has excellent chemical resistance from Oils,Acids,Silicone fluids and remains strong under high pressure conditions.

Volume Resistivity of polymers material measures how strongly a polymer material opposes the flow of electric current through a volume of cubic specimen.

A strip of silicone rubber used along the edges of the material to protect the material from shock & hits known as Silicone rubber Beading.Silicone Rubber being used here should have flexibility & strength as well.

The materials which are non-toxic and safe for consumption are known as food grade.

A nasal catheter is a tube inserted into the nose for procedures, oxygen administration, or monitoring purposes.

Lowest hardness of sponge rubber we produce here is of 10+/-5 hardness.

Square product's dimensions (Breadth and thickness) will be equal but for strip the dimensions will be different

Fire Resistant is defined as a material that is inherently resistant to catching fire (self-extinguishing) and does not melt or drip when exposed directly to extreme heat. Fire Retardant is defined as a material that has been chemically treated to self-extinguish.

Di-electric strength of Interlocking Sleeve in KiloVolts.

Shore A

AN INFLATABLE IS AN OBJECT THAT CAN BE INFLATED WITH A GAS, USUALLY WITH AIR, BUT HYDROGEN, HELIUM AND NITROGEN ARE ALSO USED. ONE OF SEVERAL ADVANTAGES OF AN INFLATABLE IS THAT IT CAN BE STORED IN A SMALL SPACE WHEN NOT INFLATED, SINCE INFLATABLES DEPEND ON THE PRESENCE OF A GAS TO MAINTAIN THEIR SIZE AND SHAPE.

Silicone Pipette Bulbs are squeezed to create a vacuum or apply pressure to the liquid contents of pipets to collect, transfer, and dispense liquids.

Restriction of Hazardous Substances (pthalates, lead, cadmium, mercury etc.)

Hose coupling (Oil distribution, Agriculture, Ink Manufacture)

MSDS means Material Safety Data Sheet. A Material Safety Data Sheet (MSDS) is a document that contains information on the potential hazards (health, fire, reactivity and environmental) and how to work safely with the chemical product. It is an essential starting point for the development of a complete health and safety program. It also contains information on the use, storage, handling and emergency procedures all related to the hazards of the material. The MSDS contains much more information about the material than the label. MSDSs are prepared by the supplier or manufacturer of the material. It is intended to tell what the hazards of the product are, how to use the product safely, what to expect if the recommendations are not followed, what to do if accidents occur, how to recognize symptoms of overexposure, and what to do if such incidents occur.

The minimum radius to bend a tube or hose without twisting it is known as Bend radius. It is mainly used for Hoses

Burst pressure is literally the pressure that a pressure vessel like pipe or tube can handle before rupturing or “bursting”. Burst pressure is a function of the material’s strength and pressure vessel dimensions (i.e. wall thickness, inside and outside diameter).

The braid is made by weaving of textil material or metal wire between two layers of rubber. hose pipe is made of only rubber.

Accelerated aging is testing that uses aggravated conditions of heat, humidity, oxygen, sunlight, vibration, etc. to speed up the normal aging processes of items.

EPDM or Ethylene Propylene Diene Monomer has an excellent operating temperature range of -45°C to + 120°C.It is highly recommended for out-door uses as it extremely resistant to oxidation, U.V. Rays and Ozone

Compression Press (Hydraulic Press) is the mechanism used in moulding process while compression set is known as permanent deformation of a material (Rubber) when the applied force is removed.

The resistance to deterioration by oxygen, heat, light, and ozone or combinations thereof during storage or use.

The Viton having a specific gravity of 1.86. Which is greater than the acid solution (sulfuric acid) will sink. All other elastomers which have a specific gravity of less than 1.73 will float,we can also know by it's appearance & smell.

Viton rubber is a fluoro elastomer, whereas epdm rubber is ethylene-propylene-diene-monomer. The primary differences between Viton® and EPDM is in their chemical resistance and temperature ranges.Viton® temperature resistance ranges from -20°C to 210°C, while EPDM temperature resistance ranges from -45°C to 145° This means that both are excellent for extreme temperatures, but EPDM has a slight edge in colder temperatures, while Viton is better for heat resistance at higher temperatures.Viton is resistant to mineral and vegetable oils, gasoline, most alkalis and aromatic hydrocarbons. . EPDM, on the other hand has good resistance to hot water and steam, silicone oils, polar solvents like ketones and alcohol and glycol based brake fluids

Hoses are typically used for applications that involve high pressure, whereas a tube is more often used for lower pressure applications.

C.T. Sleeve is tightly installed on roller by air pressure as its inner dia is less than roller dia.

Systemic Toxicity tests evaluate the generalized biological effects to organs and tissues following exposure to a medical devices, bio-material, or their extracts. The term systemic implies that the exposure occurs by one route and the toxic substance is carried to distant locations causing an adverse effect. Systemic toxicity is typically evaluated in studies of acute, sub-acute, sub-chronic, and chronic duration based on the device’s intended exposure.

The ISO Intracutaneous reactivity test is the standard protocol for determining a medical device's potential for causing irritation.

Ethylene Propylene Diene Monomer

waterproofing, cold-rooms, non-slip coatings for decks and playgrounds and automotive industry.

Yes viton rubber is food grade as it is well suited for food and lab applications where FDA compliance is required.

An Overhead Line is an electrical cable that is used to transmit electrical energy to electric locomotives, trolleybuses or trams.

No, silicone is excellent elastomeric properties at both low and high temperatures. Silicone is highly resistant to oxygen, ozone, UV light, aging, weather, and extreme temperatures. It works in temperatures that range from -55°C to +204°C

For Rubber Industries, the final stage is Post curing process followed by finishing.

No, Silicone rubber is not metal detectable but we can add metal particles as compounding ingredients to make it metal detectable.

ISO is required because they ensure quality and safety in both products and services in international trade.

The ISO defines the fundamental requirements of a quality management system for every organization, while IATF talks about the requirements of QMS for automotive organizations.

We can make solid silicone products having Minimum 10 Shore A Hardness.

Due to over exposure of light,heat,ozone transparent silicone tubes become yellowish.

No, Silicone is not recommended where High Tear Strength is required because it has poor tear strength but we can increase it's tear strength to somewhat level by adding fillers like silica.

Everyday kitchen utensils like spatulas, baking mats, muffin molds, cake pans and other cookware.

PDI means Pre-Delivery Inspection, which is Final Inspection carried out by QC Team before Dispatch.

To determine Curing Chracteristics, Rheometer is used.

Mainly 4 Types of Jointed Gaskets we make like cord gasket, tube gasket, profile gasket and Inflatable FBD gasket.

FBD INFLATABLE GASKETS FUNCTIONS LIKE A CYCLE TUBE. WHEN INFLATED, IT ENSURES PROPER SEALING. While Flange gaskets are non-inflatable and are used to create a seal between two flange faces.

Thickness Gauge is used to measure thickness.

SHORE HARDNESS DUROMETER IS USED TO FIND HARDNESS OF RUBBER PRODUCTS.

Core is the male part of the mold and cavity is the female part of the mold.

Yes, silicone are suitable for this applicationbecause of its unsurpassed biocompatibility and hypoallergic.