China Xiamen Juguangli Import & Export Co., Ltd Company News

Silicone and rubber products are ubiquitous in our daily lives, but can you easily distinguish them? Today, let's learn together how to distinguish between silicone products and rubber products! Firstly, let's take a look at the appearance. Generally speaking, silicone products have bright colors, relatively high transparency, and a smoother and more delicate appearance. Rubber products, on the other hand, often have less vibrant colors and a relatively rough surface. Touch their texture again. Silicone products feel soft, comfortable, and elastic, like giving your hands a gentle massage. Rubber products are relatively harder and may not have as good elasticity.Secondly, in terms of odor, silicone products usually do not have a strong pungent smell and are relatively mild. Rubber products may not necessarily have a strong rubber smell at times.Thirdly, in terms of material properties, silicone has better resistance to high and low temperatures. Under extreme temperature conditions, silicone products can still maintain good stability and flexibility. In contrast, rubber products perform slightly worse in terms of temperature adaptation. Fourthly, in terms of price, due to the superior performance and relatively complex production process of silicone, the price of silicone products is usually higher than that of rubber products.Fifth, silicone products are often used in the production of food contact products, such as silicone baking molds and silicone pacifiers, due to their excellent resistance to high and low temperatures, aging, and being non-toxic and odorless. In the medical field, silicone also plays an important role, such as silicone catheters, silicone prostheses, etc. In addition, silicone is often used as protective covers for electronic devices, such as phone silicone covers, computer keyboard protective films, etc. In the beauty industry, beauty tools made of silicone, such as silicone cleansing brushes, are also popular.Sixth, rubber products are commonly used in the manufacture of tires due to their excellent elasticity and wear resistance, which is one of the most common and important applications of rubber products. In the industrial field, rubber seals, rubber conveyor belts, etc. are also indispensable. In daily life, rubber gloves, rubber soles, and other rubber products are also common. Meanwhile, rubber is also widely used in sports equipment, such as basketball, football, rubber tracks, etc. So to distinguish between silicone products and rubber products, we need to observe the appearance, feel the touch, smell the odor, and combine some professional knowledge. In this way, we can distinguish them at a glance among numerous products!

How to accurately customize silicone parts? In the fields of industrial manufacturing and medical equipment, the demand for customized silicone parts is increasing day by day. Its unique temperature resistance, elasticity, and biocompatibility make it a key material for everything from consumer electronics to medical devices. However, the customization process involves complex steps such as material selection, mold design, and process control, and even a slight deviation may affect the performance of the finished product. How to balance accuracy, cost, and delivery cycle. The diversity of silicone materials is the basis for customization. Liquid silicone rubber (LSR) is suitable for precision injection molding due to its low viscosity and high fluidity, and is commonly used in medical equipment seals; Solid silicone is molded through compression molding and is suitable for industrial parts with complex structures. For example, medical respirators need to be made of materials with biocompatibility certification, while automobile intake pipes need to be resistant to high temperature and aging. Material selection not only needs to meet functional requirements, but also needs to consider the adaptability of the molding process. Thin walled structural components may have dimensional deviations due to differences in material shrinkage rates, and need to be optimized through formula adjustments in advance.Mold design is the core process of customized manufacturing. High precision molds directly affect the detail performance and consistency of the finished product. For parts with threads, multiple cavities, or thin-walled structures, complex mechanisms such as sliders and inclined tops need to be used to ensure the feasibility of demolding. For example, the silicone button of a certain household medical device needs to be fitted with a movable insert in the mold due to its inverted buckle structure. In addition, the surface smoothness of the mold and the design of the parting line also determine the appearance quality of the finished product. Molds made using CNC machining or electrical discharge technology can control dimensional errors within 0.02mm, meeting medical grade precision requirements.The selection of molding process needs to match the production scale and structural complexity. The commonly used vacuum infusion method for small-scale trial production achieves rapid iteration through silicone replication technology, reducing costs by more than 50% compared to traditional steel molds. However, large-scale production relies on injection molding, which has a high degree of automation and a stable yield rate. For example, a certain automotive parts company used silicone replication technology to trial produce air filter housings, reducing the development cycle to 2 weeks and the cost to only 30% of traditional mold making. Surface treatment technology is equally crucial. Spraying hand feel oil can enhance the tactile sensation, while secondary encapsulation molding can achieve seamless bonding between silicone and metal.Industry application cases highlight the value of customization. In the medical field, the sealing component of a certain infusion pump achieves a dimensional accuracy of ± 0.01mm through micro injection molding technology, avoiding the problem of unstable flow rate; In consumer electronics, silicone wristbands are optimized for elastic modulus, balancing wearing comfort and sports protection. Dongguan Weishun Silicone Technology and other enterprises solve the production difficulties of complex structures through full process services, from material selection to sample verification. Customized silicone parts are a combination of materials science and manufacturing processes. From precise material matching to mold innovation, to process optimization, each link requires targeted design. With the increasing demand for refinement in industries such as healthcare and automotive, the technological accumulation and compliance capabilities of customized service providers have become their core competitiveness. Choosing manufacturers with high-precision molding, full qualification certification, and fast response capabilities is essential to achieve optimal performance and cost in complex scenarios.

Silicone, as a widely used flexible material, many users are concerned about whether it will age during use? How long is the service life of silicone? How to maintain it for longer? In fact, any polymer material will experience performance degradation over long-term use, and silicone is no exception. However, the aging rate of silicone is much slower than that of materials such as rubber and plastic. This article will provide a detailed explanation of the aging reasons, service life, and scientific maintenance methods of silicone, helping everyone to extend the use time of silicone products. Silicone does experience aging, but the aging rate is very slow. The service life of silicone products in ordinary environments can usually reach 5 to 10 years, and high-quality food grade and industrial grade silicone can even be used for more than 10 years. The aging of silicone mainly manifests as surface hardening, cracking, yellowing, loss of elasticity, decreased sealing, etc. The reasons for aging mainly include long-term high temperature exposure, ultraviolet exposure, acid-base corrosion, oil contamination contact, oxidation reaction, and long-term repeated bending and extrusion. Among them, ultraviolet radiation and high temperature are the main factors accelerating the aging of silicone gel. Long term use in direct sunlight outdoors will significantly shorten the lifespan of silicone gel.The lifespan of silicone varies greatly in different usage environments. Silicone products used in indoor dark, room temperature, and dry environments, such as silicone kitchenware, silicone tableware, silicone gaskets, etc., can almost maintain long-term stability and age extremely slowly. Silicone products that are used in outdoor, high-temperature, sun exposed, and humid environments for a long time, such as silicone hoses, silicone sealing strips, outdoor silicone accessories, etc., will age relatively faster, but are still much more durable than other materials. Medical silica gel and food grade silica gel have stronger anti-aging ability because of their high purity and less additives.The correct maintenance method is crucial for delaying the aging of silicone and extending its service life. Firstly, it is necessary to avoid prolonged direct sunlight and high temperature baking. Silicone products should be placed in a cool, dry, and ventilated place as much as possible, and should not be near heat sources, open flames, or exposed areas. Secondly, it is advisable to minimize long-term contact between silicone gel and strong acid-base, chemical solvents, engine oil, diesel and other media to avoid corrosion of the surface structure and performance degradation. When cleaning, use clean water or neutral detergent, do not use highly corrosive disinfectants, air dry naturally after cleaning, and do not dry or expose to high temperatures.In addition, avoiding silicone products from being excessively stretched, squeezed, or folded for a long time and maintaining their natural shape can effectively reduce internal structural fatigue and delay aging. For industrial silicone accessories such as seals, hoses, gaskets, etc., the surface condition should be regularly inspected. If obvious hardening, cracks, or deformation occur, they should be replaced in a timely manner to avoid affecting equipment operation. Household silicone kitchenware should avoid being scratched by sharp objects, maintain surface integrity, and also improve durability. In summary, silicone will age, but at a slow pace and with a long lifespan, it can be used normally for several years or even over a decade. By understanding the causes of aging and adopting maintenance methods that avoid light, high temperatures, corrosion, and proper cleaning, the service life of silicone products can be significantly extended. Whether for daily household or industrial use, scientific maintenance can keep silicone material in good performance, making it more durable, safe, and worry free.

The high temperature resistance of silicone comes from its unique molecular structure of polydimethylsiloxane. The Si-O-Si bond energy of the main chain is much higher than that of the C-C bond of ordinary rubber, and its thermal stability is extremely strong. Secondly, the molecular chain has flexibility and forms a protective effect by connecting with organic side groups, making it difficult to decompose and deform in high temperature environments, and able to maintain good elasticity for a long time.From the perspective of temperature resistance, silicone can be divided into multiple grades. Conventional silicone can be used for a long time at temperatures ranging from -60 ℃ to 200 ℃, and can withstand high temperatures of up to 250 ℃ in the short term. Modified high-temperature silicone can meet the needs of general scenarios such as daily kitchen utensils and ordinary seals. Its long-term temperature resistance can be increased to 200 ℃ to 250 ℃, and it can reach 300 ℃ in the short term. It is suitable for industrial scenarios such as automotive engines and high-temperature steam equipment. Special high-temperature silicone can be modified with benzene, fluorosilicone, or filled with ceramics. Its long-term temperature resistance can reach 250 ℃ to 300 ℃, and its short-term peak can even exceed 350 ℃. It can cope with extreme high-temperature conditions such as aerospace and firefighting equipment. In addition, the actual temperature resistance of silicone is also affected by the purity of raw materials, production process, and usage environment. It is worth mentioning that high-quality silicone can be further improved in temperature stability through secondary vulcanization process, reducing deformation and odor problems at high temperatures. Overall, the temperature resistance of silicone materials is not limited to a single temperature range, but can cover various scenarios from daily to extreme.

How to ensure details in customized silicone parts? Silicone parts are quietly integrated into daily scenarios such as medical devices, household small items, electronic devices, etc. due to their flexible touch, temperature resistance, and chemical stability. When standard components are difficult to fit unique structures or functions, customization becomes a natural choice. However, from a requirement description to the final product in hand, material selection, process refinement, and detail confirmation are interrelated. A slight negligence may affect the fit and service life of the parts. The starting point of customization is to clearly 'translate' the requirements into technical language. When communicating with suppliers, it is necessary to clarify the usage environment: whether it comes into contact with humans or food? How much pressure can you bear? What is the working temperature range? For example, baking molds need to withstand high temperatures of 230 ℃, while therapy equipment handles focus on softness and slip resistance. Attaching a diagram or physical reference can significantly reduce misunderstandings and pave the way for subsequent steps.Material selection is like "qualitative" analysis of a component. Silicone hardness is indicated by Shore A, and can be adjusted as needed, ranging from jelly like softness to slightly elastic solidity. Colors are not limited to basic colors, but can also be customized with textures such as matte and semi transparent. If there are special requirements involved, such as medical grade biocompatibility or food contact certification, they must be explained in advance. The supplier will provide samples of the corresponding materials for touch and confirmation, and it is safe to see them by hand.Design and molds are the soul of customization. Engineers will optimize the details of the drawings: adjust the demolding angle, ensure uniform wall thickness, and avoid shrinkage or burrs during production. The precision of the mold directly determines whether the contour of the part is smooth. The samples produced during the trial stage need to be personally inspected to ensure their size is accurate? Is the edge rounded? Is the assembly smooth? The patient confirmation in this step can effectively avoid regrets after mass production.The production process emphasizes the importance of heat and moderation. Liquid silicone injection is suitable for precision small parts, while solid-state molding is used for slightly larger structural parts. Temperature, pressure, and vulcanization time need to be strictly controlled. Quality control runs through the entire process: randomly check the size, carefully inspect the surface for bubbles, impurities, or color differences. The finished product is individually packaged after gentle cleaning, especially in areas with high cleanliness requirements, where every step shows respect for details.Occasional minor situations can also serve as opportunities for communication. If the edges of the sample are slightly rough, it may be due to mold trimming or fine-tuning of process parameters; Color deviation requires checking the color card and sampling records. Honest communication and joint analysis often lead to quick solutions. Choosing a partner who is patient in communication and has solid experience will make the customization process smoother and more secure.

Why is silicone prone to static electricity?Silicone is an excellent insulating material, and its charge is difficult to dissipate. Conditions such as friction, peeling, and dry environments can cause static electricity to rapidly accumulate. The problems caused by static electricity are very significant. Products are prone to dust adsorption, electronic components may be affected by static electricity interference and have unstable performance, and precision assembly and packaging processes may also be affected by static electricity, affecting the product's qualification rate. Therefore, possessing anti-static function has become a necessary condition for high-quality silicone products.The mainstream anti-static methods for silicone products:The commonly used anti-static paths in the industry are mainly divided into three categories: internal addition type, surface treatment type, and production environment control. Different schemes are applicable to different scenarios and usage period requirements. 1. Production and Environmental Control of Static ElectricityWorkshop humidification, use of ion air rods, and adoption of anti-static packaging and other auxiliary measures can further reduce the risk of static electricity.2. Surface coating treatment: fast onset and controllable costSpray anti-static coating, tactile oil, and anti-static liquid on the surface of the finished product to form a conductive layer to quickly eliminate static electricity. The advantage of this method is that it is flexible in process, does not change the physical properties of the substrate, and has a smoother appearance.3. Plasma surface modification: enhances polarity and reduces dust accumulationBy plasma treatment, the chemical polarity of the silicone surface can be changed to reduce the possibility of charge accumulation. If used in combination with anti-static agents, the effect is even better. This process is environmentally friendly and solvent-free, which can effectively improve cleanliness and anti sticking ability.4. Adding anti-static properties: Transforming from the root, ensuring long-term stability and effectivenessDuring the mixing stage, permanent anti-static agents, conductive fillers, and ionic additives are uniformly added to the silicone raw materials. After molding, a conductive network will form inside the material, which can quickly release charges.

People who have been in contact with the silicone industry or silicone products may know that food grade silicone is specifically designed for making food related products, non-toxic and harmless to the human body, and is a high-quality material. So, conversely, is non food grade silicone harmful to the human body? Today we will learn about ordinary silicone. In fact, ordinary silicone products are also non-toxic and harmless to the human body, but food related products have higher quality requirements and need to pass a series of tests such as LFGB, SGS, FDA, etc; However, ordinary silicone cannot guarantee passing all tests due to its auxiliary materials and characteristics. Therefore, the silicone industry distinguishes between two types of raw materials: industrial accessories and daily necessities use affordable ordinary raw materials, while medical food related materials use higher quality and more expensive food grade raw materials.

The color matching of silicone products is quite important in production. For color matching and color matching work, operators need to have keen color perception and rich operational experience. Throughout the color matching process, follow the principle of light to dark and flexibly use various color masterbatches. The color matching in the color box of silicone products has two different color concepts. Color matching is the first color that we have a target color, and then we use our own experience to match colors, proportionally match various color masterbatches, and then match products that are close to the target color. Color matching is the process of adjusting existing colors to products that are close to the target color. The color matching operation between two people must be delayed according to the changes in color, and different colors need to be formulated and refreshed from the beginning. For the color matching work of silicone product color boxes, it is necessary for the operator to have rich operating experience and good color discrimination ability, and to flexibly use them based on their understanding of various color masterbatches.And the entire color matching process must be based on a slow transition from light to dark colors. Each color matching and color adjustment requires corresponding data recording. It is important to know that sometimes the data is accurate. Record the amount of colorants until the actual color is close to the target color. Summarize the color matching and color adjustment formula and record it to facilitate effective data accumulation for the next time and shorten the color matching and color adjustment time. During the color matching process of silicone products, attention should be paid to the application of mutual color fading. The so-called color fading refers to the use of the characteristic of two dyes reducing each other. For example, if there is a blue color with red light, if the product with excessive red light is considered unqualified, a small amount can be added.

Many families use dishwashers to clean dishes, so some consumers are confused. If I am using silicone tableware or kitchenware, can I use a dishwasher to wash? For example, a silicone bowl is a high-temperature molded silicone product made of food grade silicone material, and the color can be freely selected and customized. The surface of the silicone bowl is smooth, the material is soft, waterproof, and will not scratch or tear when washed in the dishwasher.In fact, the vast majority of silicone products produced from silicone are washed with clean water, such as silicone bibs. If a baby gets dirty, add some detergent or cleaning solution, rinse with water, and the whole product will return to its fresh appearance when just bought.With the influx of a large number of silicone kitchenware into the market, more and more silicone kitchenware is widely used in households. Although porcelain bowls may look high-end, washing them in a dishwasher is still not as reassuring. The strong collision force can scratch or shatter the surface of the bowl. And silicone bowls won't worry about such problems. Silicone products have good temperature resistance and can normally withstand temperature tests ranging from -40 ℃ to 240 ℃. But silicone is relatively soft and will deform under pressure. Moreover, ordinary silicone products are easily damaged when in contact with sharp objects. If there are other sharp utensils in the dishwasher, they need to be sorted and placed properly to avoid damage caused by silicone products coming into contact with sharp objects during the dishwashing process. In short, it doesn't matter which layer silicone products are placed in the dishwasher, it depends on the placement of your utensils. As long as you pay attention to the classification and placement, there's no need to worry.

Silicone release agent is an indispensable auxiliary material in the production of silicone products, which can effectively reduce the adhesion between molds and products and ensure the quality of product molding. Different types of silicone release agents are suitable for different scenarios and have their own characteristics in terms of usage. When selecting, it is necessary to consider production needs and mold conditions. The following are the usage methods and characteristics of common silicone release agents: Material and Type1. Solvent based release agent: using organic solvents as carriers, containing effective ingredients such as silicone oil and wax, suitable for most silicone molds, especially for demolding complex shaped products.2. Water based release agent: Using water as a carrier, it has good environmental friendliness, low odor, and is friendly to operators and the environment. It is commonly used in production scenarios with high environmental requirements. 3. Solvent free release agent: It does not contain solvents and exists directly in solid or paste form. It needs to be uniformly attached to the surface of the mold by heating or applying tools, and is suitable for high-temperature molding processes. Basic usage steps (general process)1. Mold pretreatment: Before demolding, the surface of the mold needs to be thoroughly cleaned to remove residual silicone debris, oil stains, dust, and other impurities. Special mold cleaning agents or alcohol can be used to wipe the mold surface to ensure it is dry and smooth, and to avoid impurities affecting the adhesion effect of the release agent.2. Selection and dilution of release agent (if necessary): Select the appropriate type of release agent based on the material of the silicone product, the complexity of the mold, and the production process. Partial solvent based or water-based release agents need to be diluted according to the instructions to avoid excessive concentration causing oil stains on the surface of the product, or low concentration affecting the release effect.3. Uniform application: Manual application: Use a brush, sponge, or cloth dipped in release agent to evenly apply it to all surfaces of the mold cavity, including corners, grooves, and other details, ensuring no omissions or accumulation. Spray coating method: For large-area molds or mass production, a spray gun can be used to atomize the release agent and evenly spray it, paying attention to controlling the spraying distance (usually 30-50 centimeters) to avoid local excess.4. Drying and curing: After application, wait for the release agent to fully dry. Solvent based release agents generally need to be naturally dried or evaporated with hot air (avoiding direct exposure to high temperatures on the mold); Water based release agents can promote water evaporation through ventilation or low-temperature drying; The solvent-free release agent needs to wait for it to form a uniform film on the surface of the mold.5. Reuse and touch up: After a single demolding, if there is insufficient residual release agent on the surface of the mold, it should be promptly touch up. During continuous production, it is recommended to check the demolding effect every 3-5 molds, and decide whether to reapply based on the smoothness of demolding to avoid mold damage caused by ineffective demolding agents. Special precautions for different types of release agents1. Solvent based release agent: When using, it should be operated in a well ventilated environment, away from sources of fire, to avoid safety hazards caused by organic solvent volatilization; Operators are required to wear protective gloves and masks to reduce the risk of skin contact and inhalation.2. Water based release agent: After application, ensure that the mold is completely dry before pouring silicone, otherwise it may cause bubbles or pinholes on the surface of the product; If there is rust or oxide layer on the surface of the mold, it needs to be derusted first, otherwise the release agent is difficult to adhere.3. Solvent free release agent: The paste like release agent needs to be evenly scraped with a special tool (such as a scraper) to avoid uneven thickness; When forming at high temperatures, it is necessary to choose high-temperature resistant models to prevent the release agent from decomposing and failing at high temperatures. Effect judgment and adjustmentIf the surface of the product after demolding is smooth and flawless, the edges are intact, and there is no residual silicone in the mold, it indicates that the demolding agent is used correctly; If the product sticks to the mold, has surface scratches, or has excessive mold residue, it may be due to uneven application of release agent, incomplete drying, or improper selection of type. The mold needs to be cleaned again and the usage method adjusted. If pursuing efficient demolding, adapting to complex molds, and accepting the operating standards of solvent based products, solvent based demolding agents are a reliable choice; If environmental protection and safety are emphasized, and high requirements are placed on odor and toxicity, water-based release agents are more suitable; For high-temperature molding processes or solvent-free demand scenarios, solvent-free release agents are more suitable. Mastering the correct usage method of silicone release agent can effectively improve production efficiency and ensure the molding quality of silicone products.