High quality EVA Foam in China

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: 20000 m²/month

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CONSTRUCTION:

Material: EVA Foam

TYPICAL PHYSICALPROPERTIES:

Thickness: 3mm

Hardness: 25, 38, 45, 60 degree

Temperature range: 20 degree below zero to 80℃

Jumbo Roll: 1m x 100m/100y

Cut Roll: As per customer’s requirements

Color: Black, white or other colors ascoustomer's requirements.

Features

moisture-proof Shockproof

anti-corrosion Sound insulation

Applications

Eva materials have many functions and competitive advantage:widelyused to make different shoes,slippers,packing productions,brush,mousepads,luggages and so on, it is waterproof,excelent elasticity，Used in slipper or sandalsproduce, packaging, sports euipment, foor mat, toys etc.

REMARKS:

1. The data above are typical results and subject to change withoutnotice.

2. Tolerance: Weight and Thickness: ±10%; Width: ±3mm;

Length: Cut Roll & LogRoll ±0.3m, Jumbo Roll ±0.5%.

3. The products should be storedat room temperature and be kept away wet and/or heat source.

4. It is essential, as with allpressure-sensitive tapes, that the surface to which the tape is applied must beclean, dry, and free of grease and oil.

5. The users should take test anddo trial-application on the above products before coming into application so asto witness and ensure suitability for their special purpose and technique.

Q: Are there formaldehyde in rubber products, too?: Yes, because formaldehyde is a very good organic solvent, so the general rubber varieties contain formaldehyde.

Q: How long is the warranty period for EPDM?: (1). Rubber molding, after pressing, the elastic body is within the cohesion can not be eliminated, the molding die, often have a very unstable contraction (rubber shrinkage due to rubber vary), required after a period of time, and can be stable. Therefore, when a rubber product design at the beginning, regardless of formula or mold, it is necessary to carefully calculate the coordination, if not, it is easy to produce product size instability, resulting in lower quality products.(2). A rubber elastic body of thermosetting plastic hot melt, belongs to the hot cold setting. Rubber due to different types of sulfide species, its molding and curing temperature range is also a considerable gap, and even can be affected by climate change, indoor temperature and humidity affected. Therefore, the production conditions of rubber products need to be adjusted at any time. If not, the quality of the products may be different.(3) rubber products are made of rubber raw materials and used as raw materials made from the rubber compound of the mixer, and the formula is designed according to the characteristics of the required rubber products, and the required hardness of the products is determined. The product is made and molded by rubber flat vulcanizing machine. Finally, the product is processed by flying edge, and the surface of the product is treated smoothly without burrs.(4). Aging test of rubber products aging test belongs to the category of rubber aging refers to rubber and products in the processing, storage and use of the process, due to the comprehensive effect of internal and external factors caused by the performance of the structure change, then the loss of use value phenomenon. They are crazing, sticking, hardening, softening, powdering, discoloration, mildew, etc..

Q: What is the pressure on rubber products during vulcanization?: Vulcanization effect is an index to measure the degree of vulcanization of rubber. The vulcanization effect is large, which indicates that the degree of vulcanization of the rubber is deep, and the vulcanization effect is small, which shows that the degree of vulcanization of the rubber is shallow. The effect of vulcanization is equal to the product of the strength of vulcanization and the time of vulcanization. The so-called vulcanization strength refers to the degree of vulcanization of the rubber at a certain temperature, unit time, or the vulcanization rate of the rubber at a certain temperature.The vulcanization strength is large, which indicates that the vulcanization reaction rate is fast, the vulcanization time which needs to reach the same vulcanization degree is short, and the vulcanization strength is small, which indicates the sulfidation reaction rate

Q: What is the definition of mixed rubber?: AdvantageThe main purpose of the industrial synthesis of rubber material is cost saving, improving the properties of rubber products, because the natural rubber products price is more expensive, in order to reduce the cost of enterprises have invested a lot of synthetic rubber materials with low cost.Synthetic rubber material also has excellent heat resistance, cold resistance, corrosion resistance, and little affected by environmental factors, synthetic rubber materials and suitable for 60 to 250 degrees below zero normal use.

Q: How to enhance the performance of water resistant silicone rubber products: Steam can also reduce the performance of silicone rubber / silicone products, essentially the fracture of the backbone. The hydrolysis fracture reaction becomes apparent due to the increase of temperature and the presence of ionic reagents.

Q: How to distinguish between good and bad silicone rubber gasket?: Silicone rubber gasket has a good elasticity, because the high elasticity mainly comes from the movement of the molecular chain of silica gel, so when buying silicone products, first look at the elasticity of silica gel products, so as to determine the quality.

Q: Comparison of physical properties of HNBR rubber material with other rubber materials: Hydrogenated nitrile rubber, referred to as "HNBR" or "H-NBR". It is a new variety of nitrile rubber (NBR).

Q: How do you remove the black dirt on the rubber?: Apply toothpaste to the stain and brush it again and again as clean as newWith Senna water and kerosene on rubber and iron grinding interpolation results are goodThe black dirt on the rubber can also be removed by diluting it with alcohol

Q: What kind of material does the shockproof rubber cushion usually choose? What's the hardness?: Of course is to choose butadiene rubberThe biggest characteristic is the molecular structure, mainly for the CIS structure, so the elasticity, cracking resistance and dynamic performance is excellent, and the rubber pad shock proof function is guaranteed, and the rubber cushion life is guaranteed, and the hardness is about 55.

Q: How is the temperature range of rubber determined?: Vulcanized rubber is related to vulcanizing reagents, fillers and so on! The low temperature limit generally refers to the glass transition temperature. Of course, the finished rubber also has the physical properties required by the customer for the low temperature dynamic work!

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