Neoprene Fabric - Science Popularization

What is neoprene fabric?
Submarine is a synthetic material called polychlorobutadiene, created chemically by scientists from DuPont in 1930. The reason for its emergence is due to the high demand for natural rubber, so it is a synthetic substitute.

[Performance and Use]

1. Physical performance:

——Good flexural resistance, excellent tensile strength and elasticity, good elongation and elongation. The 100% chloroprene rubber formula has undergone 882000 tensile tests and will not form cracks (the formula for natural rubber that produces the same degree of cracking is 399000 times, and the formula for 50% natural rubber and 50% chloroprene rubber combined is 790000 times). It has good memory ability and can be easily kneaded, Long term use without changing shape and leaving any crease marks.

——Has good shock resistance, adhesion, and sealing performance. It can protect products from wear, scratches, and abrasions, and is used as a sealing and shock-absorbing component in household appliances, as well as in the manufacturing of phone cases, thermos bottle covers, and footwear.

——Lightweight and comfortable, with moderate softness and good softness and anti slip properties. For example, when used as a mouse pad, its softness can effectively highlight the user's wrist and reduce wrist strain. Anti slip properties can prevent the mouse pad from moving, allowing users to operate the mouse steadily.

——Waterproof and non breathable, the seams are sealed due to the stitching and bonding methods of the diving material clothing, to provide additional water resistance. The first diving suit made of diving material was invented in 1952 for use in diving suits and other water sports clothing.

——Insulation, when you wear it in water, a small amount of water enters through the fabric and gets trapped between the diving material and your skin. Water is heated by your own body heat, keeping you warm.

2. Chemical properties:

——This rubber has good flame retardancy and is safe and reliable to use. It is commonly used in flame retardant cables, flame retardant hoses, flame retardant conveyor belts, bridge supports, and other flame retardant components.

——This rubber has good water and oil resistance. The double bonds and chlorine atoms in the structure of chloroprene rubber are not active enough and are not prone to chemical reactions. It can be washed repeatedly, is ozone resistant and not easy to age, durable and not easy to crack. It can be used in products with high chemical resistance requirements, such as oil pipelines and conveyor belts,

——The minimum cold resistance is -40 ℃, and the maximum heat resistance is 150 ℃ (for general rubber, the minimum cold resistance is -20 ℃, and the maximum heat resistance is 100 ℃). It is widely used in the manufacturing of cable sheaths, rubber hoses, building sealing strips and other products in various fields.

——The rubber structure is stable, non-toxic and harmless, but due to the manufacturing of diving materials, harmful toxins are usually released. When the material burns, it also releases dangerous hydrogen chloride into the air. Because the manufacturing of diving materials usually releases harmful toxins, when the material burns, it also releases dangerous hydrogen chloride into the air. Some people with sensitive skin may report allergic reactions, such as dermatitis, after wearing diving materials. This is due to the mixed chemical substance dialkyl thiourea, which is known as the "annual allergen" in 2009 due to skin reactions caused by diving gel.


1. The professional term is Neoprene, and NEOPRENE is a type of synthetic rubber foam. By adjusting the formula, different physical properties of Neoprene materials can be foamed, which are subdivided into CR, SCR, and SBR. SBR diving material is the most widely used,

1.1, CR series: 100% CR is suitable for series products such as surfwear and diving suits.

1.2. SW series: 15% CR 85% SBR is suitable for cup covers, handbags, and sports products.

1.3, SB series: 30% CR 70% SBR is suitable for sports protective equipment and glove products.

1.4, SC series: 50%+50% SBR is suitable for fishing pants, sulfur added footwear products, and Neoprene materials suitable for special physical properties can also be developed according to customer requirements.

2. Neoprene has even greater differences depending on the different fabrics adhered to the surface of different materials. Generally speaking, water clothing fabrics are made of synthetic fibers, such as Jiaji fabric (T fabric), Lycra fabric (LYCRA), Meijia fabric (N fabric), silk fabric, nylon (NYLON), OK fabric, imitation OK fabric, etc.

2.1 Lycra fabric has a higher number of threads per unit area and denser knitting, making it more wear-resistant; The lifespan of a Lycra diving suit is longer than that of a nylon diving suit.

2.2 Lycra fabric has better elasticity and is less likely to deform, with a wide range of colors to choose from;

Nylon fabric is relatively inexpensive.

3. General diving materials and environmentally friendly diving materials

3.1 Environmentally friendly diving materials, also known as new diving materials, only have the ability to use air blown film for full molding in the process. In terms of product structure, cross interlacing winding method is used, and there is an enhanced steel wire frame, which enhances its pressure resistance and ball hardness, and makes the product have the characteristic of accepting negative pressure, expanding its application field.

3.2 Generally, diving materials are made using mechanical grinding technology, using lower corner materials from tire factories and pressed with solid molds, which may lead to uneven stress and explosion, and unstable functionality.


1. Raw material - NEOPRENE is measured in pieces and typically comes in two sizes: 51 * 83 inches or 50 * 130 inches. There are two colors available: black and beige.

2 foaming - the newly foamed material becomes a sponge bed, with a thickness ranging from 18mm to 45mm. Its upper and lower surfaces are relatively smooth, known as smooth skin or skin,

3 Embossing - If embossed on its surface, it can have better slip resistance. The embossing patterns include coarse, fine, T-shaped, diamond, etc. The coarse embossing is called a shark skin, while the fine embossing is called a fine skin

4-Splitting - The splitting of the Neoprene sponge bed into open cells, which can be processed into splitting pieces with a thickness of 1-45mm as needed, usually applied on this surface.

Diving suits with diving materials come in different thicknesses, ranging from 2 to 5 millimeters, depending on their purpose. Normal diving material products have a thickness of 3mm, while cola cup covers range from 4mm to 5mm (with excellent insulation and cooling effects).

5 Adhesion - NEOPRENE cleats can be used to adhere various fabrics, such as LYCRA, JERSEY, TERRY, NYLON, POLYESTER, etc. Fitted fabrics can be dyed in various colors.

The bonding process is divided into ordinary bonding and solvent resistant (toluene resistant, etc.) bonding. Ordinary bonding is suitable for sports protective equipment, handbags, gifts, etc., while solvent resistant bonding is suitable for diving clothing, gloves, and other products that need to be used in solvent environments.

6 blind stitching - a common method of sewing seams on diving clothing, where the seams are sewn inside and outside without the needle thread completely penetrating, and there are no holes left on the outside. Then, the joints are usually glued or glued together to increase durability.

【 Purchasing and Quality Inspection Tips 】

1. Determine the neoprene material you need

1.1 "Smell" the odor. If there is a strong rubber smell behind the sponge, it may indicate that the safety period has not expired (some sponges also have a strong odor that can be distinguished by professionals)

1.2 Some businesses, in order to reduce costs, use EVA high foam or foam as diving material, which has little elasticity and is also made of rubber.

1.3 It is necessary to check whether the soft strength of the material is solid, and whether there are signs of backlighting on the surface. Generally, diving materials with two signs, left and right, are prone to cracking and lack extensibility, and also lack soft defensive properties.

2. Determine the total thickness of the required adhesive film

2.1 It can be measured using a vernier caliper, preferably a professional tool for measuring the thickness of diving material. We call it a thickness gauge, which is a professional tool for measuring the thickness of diving material.

2.2 Neoprene is a soft material that should not be subjected to excessive pressure during measurement. It is preferable to use a vernier caliper that can move freely.

2.3 Use a thickness gauge to measure the thickness of the midpoint you have selected, and then write its thickness on it with a pen (of course, you need to find a pen that can be wiped off, otherwise your diving material will be too wasteful). Let it sit for one day and measure the thickness you have selected again. Another day, measure again (remember to find a notebook to record each measurement) and compare it with the previous ones to see if there is too much change in thickness.

The thickness error is generally around plus or minus 10%. If the thickness is 3mm, the actual thickness is between 2.7-3.3mm. The minimum error is around plus or minus 0.2mm. The maximum error is plus or minus 0.5mm.

3. Determine the need to adhere to the fabric and color

3.1 The anti water resistance of fabrics can generally be divided into several levels, such as 100, 90, 80, 70, 50, and 0. However, sometimes some people may further divide it into levels such as 95, 85, etc. The higher the score, the better the anti water performance. This classification method is based on American standards, as well as national and ISO standards, which are classified according to 0,1, 2,3, 4,5.

3.2 After confirming the color of the fabric, the factory can provide customized weaving and dyeing. But if the usage is less than 100KG, an additional dyeing tank fee will be charged.

4. Determine the fitting method

4.1 Is solvent resistant bonding required during bonding? Where should the product be used? If it is a product that is going into the sea, such as a diving suit, diving gloves, etc., solvent resistant bonding will be required. Regular gifts, protective gear, and other items can be easily fitted.

If it is a regular fit, there will be an odor when it is first applied, and it should be spread out and left for about 5 days to dissipate the odor. The unit price of the environmentally friendly light odor fit can be changed to an additional 3 yuan per yard;

5. Delivery and Packaging

5.1 Delivery dimensions are generally 51 × 130 typesetting is more material efficient. For the materials used for loading containers, 51 should be selected × 83 specifications, more suitable for container loading.

5.2 Packaging method: Usually packaged in rolls, please lay it flat immediately upon receipt of the goods, otherwise the inner core may have creases due to curling. (Supplier's response: There will be creases around 0.2 yards near the paper tube, nothing else.)

5.3 The length error is about plus or minus 5%, usually longer and wider.
Post time: 2023-12-14 15:10:27
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