Various Styles Foam Sheet

Our main product lines of foam sheet include closed cell and open cell, EPDM, NBR, NBR/PVC, CR, EVA, PE with form factor of plate, sheet or roll etc. These foam sheets have been widely used in automobile, construction, aerospace, train, home appliance, electronics fields as gaskets, seals, shock/vibration absorber, thermal insulation and sound proofing materials etc. For more information, please contact with us at any time and we will offer you the satisfied products.

Item No. Material State Color Density (Kg/m3) Tensile strength (Mpa) Elongation at break (%) Tearing strength (right angle type, KN/m) Compression set (50%,23, 72h,%) Burning rate (mm/min) Maximum size (mm) Inspection standard
YEO-10K EPDM Open cell Black 90±20 ≥0.1 ≥200 ≥0.5 ≤3 ≤40 50*1000*2000 JIS
YEO-10R Open cell Red 90±20 ≥0.1 ≥200 ≥0.5 ≤3 ≤100 45*1000*2000 JIS
YEC-14 Closed cell Black,Gray 130±20 ≥0.4 ≥120 ≥2 ≤8 ≤30 40*1000*2000 JIS
YEC-16 Closed cell Black,Gray 170±20 ≥0.6 ≥120 ≥3 ≤8 ≤30 40*1000*2000 JIS
YNPO-55 NBR/PVC Open cell Black,Gray 60±10 ≥0.1 ≥100 ≥0.5 ≤5 ≤20 30*1000*10000 JIS
YNPC-65 Closed cell Black 70±10 ≥0.2 ≥120 ≥1 ≤8 ≤20 30*1000*10000 JIS
YNO-01 NBR Open cell Black 80±20 ≥0.1 ≥120 ≥0.5 ≤3 ≤10 25*700*3000 JIS

Kindly note: The above data are just for reference, for specific data and other items, please contact with us.

The Production Process of Rubber Sheets

Different rubber products have different processing processes. Formulation, rubber mixing, calendering, extrusion, molding and vulcanization are the basic processes for the production of rubber products.

According to the performance requirements and manufacturing process conditions, the formula of rubber sheet is tested, practiced, identified, and the raw materials are reasonably selected to determine the dosage and ratio of various materials. Under the premise of not reducing product quality, reduce the cost of rubber compound, increase labor productivity, reduce energy consumption in processing and manufacturing, and improve production efficiency.

The mixing is the first step in the production process of rubber sheet. Its task is to mix the raw rubber which is required by formula and various raw materials to make the rubber compound which meets the performance requirements. That includes two main processes – Plastication Process and Compounding Process. Compounding processing is based on Plastication Process. The two processes are commonly known as rubber mixing processes. The rubber mixing equipments mainly have open mill and internal mixer.

Calendering of rubber sheet is to make rubber compound into a sleek sheet which has a specified section thickness and width through the use of calender. Sheets which have large section thickness can be separately calendered into thinner sheets and then laminated to the sheets with specified thickness.
 The final step in the production of rubber sheets is vulcanization. The macroscopic characteristics and microstructure of rubber products have changed during this process. The temperature, pressure and time during vulcanization are the main factors to constitute the vulcanization conditions, and are also called three elements of vulcanization.

Rubber Types

Material Property Application
Natural Rubber(NR) High elasticity, high tensile strength, excellent tear resistance and electrical insulation, good wear
resistance and drought resistance, good processability, easy bonding of other materials, superior to
synthetic rubber in overall performance. The disadvantages are poor resistance to oxygen and ozone, aging
and deterioration, poor oil and solvent resistance, low acid-base corrosion resistance and heat resistance.
Operating temperature range: about -60 °C ~ +80 °C.
Production of tires, rubber shoes, hoses, tapes, wire & cable insulation and sheathing, and other
general purpose products. Particularly suitable for torsional vibration dampers, engine dampers, machine
supports, rubber-metal suspension elements, diaphragms, moulded products etc.
Styrene Butadiene Rubber(SBR) Its performance is close to that of natural rubber, and its output is largest in common synthetic rubber
currently. The abrasion resistance, aging resistance, and heat resistance exceed that of natural rubber, and
its texture is evener than that of natural rubber. The disadvantages are low elasticity, poor resistance to
flexion and tearing, poor processability, especially poor self-adhesion and low raw rubber strength.
Operating temperature range: about -50 °C ~ +100 °C.
Mainly replacing natural rubber and making rubber sheet, rubber hose, rubber shoes and other general
products.
Neoprene(CR) It has excellent resistance to oxygen, ozone resistance, non-flammable, self-extinguishing after ignition,
oil and solvent resistance, acid and alkali resistance, aging resistance, good air tightness etc. Its
physical and mechanical properties are also better than that of natural rubber, so it can be used as a
general purpose rubber or as a specialty rubber. The disadvantages are poor cold resistance, large specific
gravity, high relative cost, poor electrical insulating properties, stickiness during processing, scorching,
and easy adhesion. In addition, the raw rubber has poor stability and is not easy to preserve. Operating
temperature range: about -45 °C ~ +100 °C.
It is mainly used for making cable jackets, various protective sleeves and covers required high resistance
to ozone and aging. Making oil and chemical resistant hoses, tapes and chemical linings. Also making
fire-resistant underground mining rubber products, various moulded products, seals, pads, adhesives etc.
Butyl(IIR) The most prominent feature is good air tightness, ozone resistance, good aging resistance, high heat
resistance, long-term working temperature below 130 °C. It’s able to resist inorganic strong acids (such as
sulfuric acid, nitric acid etc) and general organic solvents, and has good vibration absorption and damping.
Electrical insulation is also very good. The disadvantages are poor elasticity, poor processability, slow
vulcanization, poor adhesion and oil resistance. Operating temperature range: about -40 °C ~ +120 °C.
Mainly used for making inner tubes, water tires, balloons, wire and cable insulation, chemical equipment
lining and shockproof products, heat resistant transport belts, heat and  aging resistant tape
products.
Nitrile(NBR) The resistance to gasoline and aliphatic hydrocarbon oils is excellent, second only to polysulfide rubbers,
acrylates and viton, and superior to other general purpose rubbers. Heat resistance, airtightness, wear
resistance and water resistance are all good, and strong adhesion. The disadvantages are poor cold
resistance and ozone resistance, low strength and elasticity, poor acid resistance, electrical insulation
and polar solvent resistance. Operating temperature range: about -30 °C ~ +100 °C. 
Mainly used for making various oil-resistant products, such as hoses, sealed products.
Ethylene Propylene Rubber(EPDM) Ozone resistance, UV resistance, weather resistance and aging resistance, ranking first in general rubber.
Electrical insulation, chemical resistance, impact elasticity, acid and alkali resistance, small specific
gravity, high filling compatibility. Heat resistance up to 150 °C, polar solvents (ketones, esters etc.),
but not resistant to aliphatic and aromatic hydrocarbon. The physical and mechanical properties slightly
inferior to that of natural rubber and better than that of SBR. The disadvantages are poor self-adhesion and
mutual viscosity, and difficult to bond. Operating temperature range: about -50 °C ~ +150 °C.
Mainly used to make lining of chemical equipment, wire and cable sheathing, steam hose, heat-resistant
conveyor belt, automotive rubber products and other industrial products.
Silicone(VMQ) Both high temperature (maximum 300 °C) and low temperature (minimum -100 °C), it is the best cold and high
temperature resistant rubber currently. It also has excellent electrical insulation, high stability to
thermal oxidation and ozone. Disadvantages are lower mechanical strength, poor oil resistance, solvent
resistance, acid and alkali resistance, and  expensive. Operating temperature: -60 °C ~ +200 °C. 
It is mainly used for making high and low temperature resistant products (rubber pipes, seals etc.), high
temperature resistant wire and cable insulation. It is also used in food and medical industries because it
is non-toxic and tasteless.
Viton(FKM/FPM) Acid and alkali resistantance, oil resistance are the best in oil resistant rubber. High temperature
resistance up to 300°C, it also has good resistance to radiation and high vacuum resistance. Electrical
insulation, mechanical properties, chemical resistance, ozone resistance, atmospheric aging resistance are
all excellent. Disadvantages are poor processing, expensive and poor cold resistance, low elasticity and air
permeability. Operating temperature range: -20 °C ~ +200 °C. 
It is mainly used in the defense industry to making sealing materials and hoses for aircrafts and rockets
required vacuum-resistant, high-temperature, chemical-resistant,  or other parts .

Rubber Foam Sheet

Our foam rubber sheets include open cell type and close cell type. Foam rubber sheets have different series based on different materials. There are EPDM series, NBR/PVC series, NBR foam sheets and others. Different materials are suitable for different use.

We own advanced equipment, powerful technology and reasonable management. The products are well known for their fine quality. Featured with heat protection, insulation, sound absorption, shock resistance, sealing and flame retardancy, our products are widely used in automobiles, buildings, air conditioning, electronics, sports, medical, packaging, apparatus and instruments etc.

Glass Silicone Vacuum Bag

Glass vacuum silicone bag is one of very important element for vacuum laminating glass processing system. It is high anti-tear type, which is able to bear high temperature, high flexibility, inertia sufferance to avoid mucosity, bear oil & aging, anti-cauterization, innocuity and insipidity, which is an ideal material to make vacuum bag of laminating machine. Yotile silicone vacuum bags are made up with two silicone rubber sheets, sealing strip, silicone tube and silicone nozzle. Silicone rubber sheet is the key parts of glass vacuum laminating machines/furnace etc.

Product features: heat‐resistant, high elasticity, special surface property (no adhesion) and physiological inertia, anti‐aging, anti‐corrosive, non‐polluting

Product specification:  
a. Common thickness: 2mm / 3mm 
b. Maximum width: 3600mm with no jointing
c. Any Length is available.
d. Common color: transparent, red, and any color available

Silicone Rubber Sheets for Solar Energy Laminator- Diaphragm / PV modules

Yotile use qualified raw material of a world-famous brand for the high tear-resistant silicon rubber sheet and carries out technical cooperation with professional companies domestically and abroad. Yotile adopt advanced techniques, special equipment and large drum-type vulcanization unit in the development of the product, which have a high level of stability, a good evenness and reliability. Specially used for solar energy laminator etc.

According to specific working conditions and lose-efficacy forms of solar laminated sheet, Yotile develop the second generation silicone rubber sheet. Based on the former silicone rubber sheet, this one brings in the green environmental reinforcing material which is acid resistant, chemical resistant, high temperature resistant, so the tensile strength, tearing strength, and dimensional stability of the silicone rubber sheet are greatly improved, then the lifetime is longer. The advantage of the silicone rubber sheet is that the solar module will not be damaged, even if it is used to the extreme.

If you have any interest, kindly email to info@yotilerubber.com, more details will be got within 24 hours.

Floral Foam

Floral foam and oasis floral foam are a trademarked name for wet floral foam, the spongy phenolic foam used for real flower arranging. It soaks up water like a sponge and acts both as a preservative to prolong the life of the flowers and a support to hold them in place. The foam’s structure is similar to that of plants and has capillary action to move water to the surface and up the stem. It is often green, but is also available in many other colors, such as purple, red, yellow, and  brown. It usually is supplied in a brick shape, but can be bought in spherical shapes. Floral foam can be bought wholesale or in arts and craft and gardening stores, particularly ones that feature large faux flower collections for creating artificial arrangements.

The details:
In 23 * 11 * 8 cm/piece of floral foam quality standards:

1. An open-celled phenol foam that readily absorbs water and is used as a base for 
  flower arrangements.

2. Foliage green in color.

3. Density: 25KG/M³

4. Water absorption time: ABT. 1 minute (60 secs)

5. Dry brick weight: 45g(+/- 3g)

6. Wet brick weight: 2000g (+/- 15g)

7. Water drainage / leakage: 0g

8. Cell Structure: Fine

9. Brown water: No

10. PH level: PH 5.8-6.5

11. Water retain period: 7 days & above (Depend on the local climate)

Classify and Feature of Silicone Sheet

Silicone sheet is made of thin layer silica gel which is high quality. It has been divided by two types based on form processes in the current market.

Extruded Silicone Sheet

Extruded silicone sheet can take shape through extrusion forming machine. This silicone sheet in meters can also be rolled together and length can be cut as requirements, like ribbon.
Advantages: high mobility, low cost, high productivity, quick production speed, free cutting, uniform thickness
Disadvantages: That need to trimming die and then some specific shapes can be cut in the later stages.

Molding Silicone Sheet

Molding silicone sheet is a fixed size sheet which is vulcanized through moulds by high temperature. Due to display area limitations, the length and width is also limited.
Advantages: stable production, high quality material, easy to control grade of color, hardness and material, consistent sizes
Disadvantage: low productivity, higher cost, uneven thickness
Different users can select different crafts of silicone sheets according to their practical requirements.

Auto Seal

With the rocketing development of auto industry, various better performance of auto rubber seals/profiles are required. Technology development, applications of new material and new process provide the developing space for rubber seal industry. New requirements for auto environment, safety, appearance and comfort are referred, and not just at three functions: connectivity, sealing and decoration. So material selection, construction, workmanship should be continuously improved.

Maintenance of Auto Rubber Products in winter

Due to dryness in winter, experts argue that the weather can be harmful for some auto parts, like whole auto rubber seals, tires, seats etc. These vulnerable parts are easy to get wrinkles, aging or cracks. If you pay more attention to maintenance your cars, the question will be solved easily.

Those few rubber seals of auto are often neglected by people. They are very important to waterproof and soundproof. But they are also fragile. Sunlight exposure for a long time and low atmospheric humidity can lead to premature aging of rubber seals. Once they get aging and cracked, that will have big impacts on waterproof and soundproof. Rubber tires also have the same problem. In the long dry environment, rubber material of tire is easy to get ageing. If the tire walls get damaged seriously, that will not be used any more.

For the above problems, some moisturizers for rubber parts have emerged as required. The role of moisturizers is to moisturize and repair damaged rubber seals and tires, slow down the aging process. Meanwhile, that will polish rubber parts. When four feet of car looks shiny black after maintenance, your car will be more handsome than before.

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