文章

Is the silicone case easy to scratch / easy to break / not fit?

Is the silicone case easy to scratch / easy to break / not fit?

A Complete Guide to Upgrading the Quality of Silicone Protective Cases

Heads of digital accessory wholesale businesses and brand foundries are well aware that the issues of silicone cases being prone to scratches, easy to break, and poor fit are core pain points in bulk deliveries. At best, these issues lead to complaints from downstream customers; at worst, they result in full batch returns, directly squeezing profit margins. In fact, by upgrading the material, structure, and craftsmanship in three aspects, these problems can be solved at the source, ensuring an ultra-low defect rate of 0.3%!

First: Material upgrade to build a durable foundation! High-toughness nano-silicone material is used (Shore hardness 50±2A), with 0.8%-1.2% scratch and wear-resistant additives. It undergoes a 48-hour scratch resistance test (500 grams of steel wool rubbed 500 times with no scratches). At the same time, anti-fall modifiers are incorporated, enabling it to withstand 10 free falls from a height of 1.5 meters without cracking, thus laying a solid foundation for the durability of the silicone case from the material perspective.

Second: Structural optimization to solve the fit problem! A 1:1 CNC modeling of the real machine is adopted, with hole position errors strictly controlled within ±0.02mm. The frame is equipped with a 0.3mm anti-collision airbag structure, and the button area is designed with a slightly convex anti-slip feature, completely solving the problems of poor fit and stuck buttons. A honeycomb buffer layer is added to the back to disperse impact force and reduce the risk of damage from falls.

Third: Process improvement to enhance quality control accuracy! The vulcanization temperature gradient is controlled at 160-180℃, and the pressure holding time is extended to 150 seconds to avoid material brittleness caused by over-vulcanization. The surface is treated with plasma polishing technology to remove burrs and improve smoothness, reducing scratch marks. 15% of the products are sampled for inspection before leaving the factory, covering all dimensions such as fit, scratch resistance, and fall resistance, ensuring that the delivered silicone cases have no quality hidden dangers.

Whether you are a brand foundry focusing on the mid-market or a business deeply engaged in digital accessory wholesale, are you worried that the quality issues of protective cases will hinder delivery? Click on the online customer service or call directly, inform us of your mass production needs, and we will provide customized silicone case quality optimization solutions, supporting small-batch trial orders (as low as 500 pieces) to help you stabilize quality and improve downstream repurchase rates!

Do you need me to elaborate on the structural optimization details of silicone cases for different digital models (such as foldable screens, curved screens)?

/通过：

Silicone products with batch overmolding and debonding? 3 major anti-debonding solutions + 0.2% defect rate

硅胶产品采用批量包覆成型工艺，容易脱粘？三大防脱粘解决方案，缺陷率仅为0.2%。

无忧批量生产：硅胶产品包覆成型及粘合失效全过程控制综合指南

敬请橡胶及塑料配件批发商、设备铸造厂经理们注意！某客户曾因硅橡胶涂层产品大规模脱粘而蒙受数百万损失——硅橡胶与金属/塑料基材之间的强制分离和界面分层不仅导致整批产品返工报废，还延误了交货期，损害了品牌声誉。事实上，通过掌握“基材预处理+材料适配+多维检测”三大核心解决方案，并结合PFMEA风险控制，可以实现0.2%的超低缺陷率，稳定保障批量生产产品的质量！

第一步：基材预处理，奠定牢固的粘合基础！对于金属基材，采用“喷砂+硅烷偶联剂（KH-550）”双重处理。喷砂后，表面粗糙度控制在Ra1.6-3.2μm，偶联剂涂层厚度为1-3μm，然后在80℃下干燥。对于塑料基材（如PP/PE），首先使用等离子刻蚀（Ar/O₂混合气体，100W/30s）将表面能提高到≥40mN/m，然后涂覆专用底涂剂（3M DP100），必要时设计锯齿状凹槽（深度0.2-0.5mm）以增强机械互锁。彻底去除基材表面的氧化层和残留脱模剂是防止硅橡胶制品脱粘的关键前提。

第二步：材料和工艺的双向调整，以增强界面粘合力！选用含硅烷改性基团的自粘性液态硅橡胶（LSR）（例如瓦克ELASTOSIL® LR 3030）。对于高温基材（PPS/PEEK），使用耐温≥250℃的加成型硅橡胶（例如信越KE-3470）。控制粘合层厚度在0.3-0.5mm，以达到“硅材料断裂而不脱粘”的效果。工艺方面，采用梯度硫化模式：模具温度160-180℃，保压120-180s，高压情况下进行二次硫化（180℃×2h）。通过分阶段注射压力（第一阶段80MPa，第二阶段50MPa）避免气泡残留。

第三步：多维度严格检验+工况模拟，消除潜在风险！抽取15%的批次样品，通过划格试验（网格间距1mm）和拉伸剪切试验（剥离强度≥12N/cm）测试粘合性能，同时进行100℃沸水浸泡2小时、-40℃~85℃高低温循环500次以及96小时盐雾试验，模拟极端工况。严格按照GB/T 1408.1标准进行评判，直接剔除不合格产品，并通过DOE实验设计优化参数，将脱粘缺陷率控制在0.2%以内，确保交付的硅橡胶产品无脱粘风险。

无论您是硅橡胶制品生产商还是需要定制橡胶涂层产品，您是否担心大批量脱粘会影响交货？点击在线客服或直接致电，告知我们您的工作环境和采购数量，我们将提供全套​​防脱粘解决方案（包括基材处理、材料选择和测试报告），支持小批量试订单和PFMEA风险控制，帮助您稳定控制产品质量，避免售后纠纷。

/通过：

Silicone cases turning yellow in bulk? 168h anti-yellowing + 0.1% defect rate

Silicone cases turning yellow in bulk? 168h anti-yellowing + 0.1% defect rate

Bulk quality control and zero yellowing solution, full-process control of silicone case anti-yellowing

Bosses engaged in wholesale of digital accessories and brand OEM (Original Equipment Manufacturing) have once faced situations where million-level orders of silicone cases became unsalable due to batch yellowing. When the products were put into the warehouse, their color was pure and uniform, but yellow spots and color deterioration appeared in a short time. This not only led to concentrated returns from downstream customers but also directly damaged the brand reputation. In fact, by mastering the three-fold control of “raw materials + craftsmanship + testing”, it is possible to achieve 168-hour anti-yellowing performance and an ultra-low defect rate of 0.1%, thus stably ensuring the delivery quality!

First step: Upgrade raw materials to block the source of yellowing! Before customizing silicone cases, it is necessary to use high-purity silica gel with a platinum vulcanization system, adding 0.3%-0.8% UV stabilizers and antioxidants. This can improve the anti-yellowing performance by 80% compared with ordinary materials. Reject recycled materials and inferior color masters. The color master should be a special anti-yellowing type for silica gel, and the addition amount should be controlled within 5% to avoid irreversible yellowing caused by damage to the silica gel cross-linking structure.

Second step: Control the craftsmanship to avoid yellowing due to over-vulcanization! Strictly control the vulcanization temperature at 160-180℃, and adopt a gradient heating mode (preheat at 150℃ for 5 seconds first, then heat up). The risk of yellowing will increase by 30% for every 10℃ increase, so over-vulcanization must be firmly prevented. Thoroughly clean the mold before production to remove residual release agent. New molds need to be baked at 200℃ to remove oil, preventing surface yellow spots caused by impurity migration.

Third step: 168-hour aging test + strict inspection before delivery! Sample 15% of each batch, and conduct a 168-hour anti-yellowing test under the environment of 60℃ with UVA-340 light source in accordance with the standard of GB/T 16422.3-2014. Only those with a yellowing index (YI value) increase not exceeding 2.3 are considered qualified. At the same time, inspect the uniformity of appearance color, eliminate any products with slight yellow spots, and strictly control the defect rate within 0.1% to ensure that the delivered silicone cases have no hidden danger of yellowing.

Whether you are a digital accessory wholesaler, a brand OEM factory, or a purchaser focusing on light-colored/transparent products, are you worried that the batch yellowing of silicone cases will delay the delivery schedule and cause after-sales disputes? Click on the online customer service or call directly, inform us of the purchase quantity and product requirements. We provide full-process anti-yellowing control services, support the verification of 168-hour anti-yellowing test reports, and offer small-batch trial orders to help you deliver stably and eliminate after-sales concerns!

/通过：

Is the mold cost for silicone bag high?

Is the mold cost for silicone bag high?

Say goodbye to high-cost mold opening! Practical strategies to reduce costs in custom silicone bag production

Attention bosses engaged in digital accessories wholesale and brand OEM manufacturing! When customizing silicone bags, the high mold cost has become a major headache for many purchasers. Small-batch orders result in meager profits after cost allocation, while large batches risk inventory backlogs. However, by combining process selection, cooperation models, and design optimization, you can significantly reduce costs while ensuring quality, steadily maintaining profit margins!

First tip: Choose the process based on order quantity! For small-batch customization (＜100 pieces), prioritize silicone replication molding. The mold cost is only 2,000-5,000 yuan, and mold opening and mass production can be completed in 3-7 days, which is suitable for new product sampling or niche needs. For medium batches (500-5,000 pieces), select compression molding with a mold cost of 10,000-50,000 yuan. When the order exceeds 500 pieces, the allocated cost is 60% lower than that of replication molding. For orders of 10,000 pieces or more, directly choose liquid injection molding. Although the initial mold cost for silicone bags is higher, the unit cost shows a significant decreasing effect, and the scrap rate is less than 3%, making it more cost-effective in the long run.

Second tip: Reduce costs through batch integration and policy dividends! Integrate similar needs from multiple customers and produce with unified specifications. By increasing the order quantity, the negotiation space for mold costs can be increased by 30%. Sign long-term framework agreements with suppliers and adopt the “basic mold cost + unit sales share” model, which can reduce the initial investment by 40%. What’s more, some manufacturers offer policies such as 50% mold cost refund when mass production reaches 5,000 pieces and full refund for 10,000-piece orders, further spreading the costs.

Third tip: Modular design reduces costs without compromising quality! Adopt a modular mold structure. When modifying product models later, only 30% of the mold components need to be changed, saving 60% of secondary development costs. Simplify unnecessary complex structures of silicone bags, reduce undercuts and precision textures, and lower mold processing difficulty, which can directly reduce mold costs by 25%-50%. It is essential to conduct small-batch tests before mass production to avoid mold rework due to design issues, which would add extra costs.

Whether you are a digital accessories wholesaler, a brand OEM factory, or need to customize storage silicone bags, and are worried that high mold costs will squeeze profits? Click on the online customer service or call directly, inform us of your order quantity and needs. We provide process adaptation, tiered mold cost refund policies, and support small-batch trial orders (as low as 100 pieces), helping you reduce costs, increase efficiency, and ensure stable delivery!

/通过：

Silicone spatulas with mass degumming issues? One-piece molding technology eliminates hidden dangers!

Silicone spatulas with mass degumming issues? One-piece molding technology eliminates hidden dangers!
Say goodbye to glue failure and rework! Silicone spatulas with integrated molding for quality control

Worried about mass-produced silicone spatulas getting unglued and needing rework after bulk purchasing? If you’re in kitchenware wholesale or OEM, you must read this! —— Separation of the spatula head from the handle, cracking after high-temperature use, not only leads to concentrated returns from downstream customers but also directly damages the brand reputation. In fact, choosing the right integral molding process and implementing 3 key controls can fundamentally eliminate ungluing and steadily maintain the delivery rate!

First step: Lock in the integral molding process! Abandon the traditional silicone spatula bonding process and adopt high-temperature vulcanization integral molding technology to seamlessly integrate the silicone material with the handle frame, eliminating the hidden danger of ungluing structurally. Before mass production, it is necessary to trial-produce 50-100 samples. After being steamed at 200℃ for 2 hours and subjected to 1000 repeated bending tests, production can proceed only if there is no loosening or ungluing.

Second step: Adaptation of raw materials and processes! Use food-grade silicone that meets the GB4806.11 standard, combined with special bonding additives, to ensure compatibility between the silicone and handle materials (wood, plastic, metal). Control the vulcanization temperature between 160-180℃ and the holding time to the second to avoid weak bonding due to deviations in process parameters.

Third step: Strengthen durability through finished product sampling inspection! Conduct sampling inspections at 15% of the batch. In addition to checking for no burrs on the appearance and meeting size standards, focus on ungluing tensile tests (tensile force ≥50N is considered qualified) and high-temperature working condition simulation tests. Unqualified batches are directly reworked and never flow into downstream channels. Choosing suppliers that support integral molding technology fundamentally reduces the risk of after-sales issues caused by ungluing.

Whether you’re a kitchenware wholesaler, brand OEM factory, or catering supply chain purchaser, worried that mass ungluing of silicone spatulas will affect your business? Click on the online customer service or call directly. We provide high-quality silicone spatulas with integral molding technology in bulk, support verification of inspection reports and small-batch trial orders, helping you purchase with confidence and no after-sales worries! Mass ungluing? Integral molding technology eliminates hidden dangers!

Say goodbye to ungluing and rework! Quality control of silicone spatulas with integral molding

Worried about mass-produced silicone spatulas getting unglued and needing rework after bulk purchasing? If you’re in kitchenware wholesale or OEM, you must read this! —— Separation of the spatula head from the handle, cracking after high-temperature use, not only leads to concentrated returns from downstream customers but also directly damages the brand reputation. In fact, choosing the right integral molding process and implementing 3 key controls can fundamentally eliminate ungluing and stea

Second step: Adaptation of raw materials and processes! Use food-grade silicone that meets the GB4806.11 standard, combined with special bonding additives, to ensure compatibility between the silicone and handle materials (wood, plastic, metal). Control the vulcanization temperature between 160-180℃ and the holding time to the second to avoid weak bonding due to deviations in process parameters.

Third step: Strengthen durability through finished product sampling inspection! Conduct sampling inspections at 15% of the batch. In addition to checking for no burrs on the appearance and meeting size standards, focus on ungluing tensile tests (tensile force ≥50N is considered qualified) and high-temperature working condition simulation tests. Unqualified batches are directly reworked and never flow into downstream channels. Choosing suppliers that support integral molding technology fundamentally reduces the risk of after-sales issues caused by ungluing.

Whether you’re a kitchenware wholesaler, brand OEM factory, or catering supply chain purchaser, worried that mass ungluing of silicone spatulas will affect your business? Click on the online customer service or call directly. We provide high-quality silicone spatulas with integral molding technology in bulk, support verification of inspection reports and small-batch trial orders, helping you purchase with confidence and no after-sales worries!

/通过：

Does the silicone soft case not fit properly?

Does the silicone soft case not fit properly?

Say goodbye to misaligned holes! The silicone soft case fits precisely

Bosses engaged in wholesale mobile phone accessories and brand foundry operations, when purchasing silicone soft cases in bulk, the biggest fear is falling into the trap of poor fit! Issues such as misaligned camera holes, unpressable buttons, and warped edges not only lead to a wave of returns from downstream customers but also directly damage the brand’s reputation. In fact, by focusing on 3 core control points, you can eliminate fit problems at the source and steadily maintain the delivery rate!

First checkpoint: Real machine mold opening + CNC precision carving calibration! Before customizing silicone soft cases, it is necessary to disassemble and scan the real target model, use CNC to precisely carve the mold, and strictly control the hole position error within ±0.02mm (industry standard is ±0.03mm). Trial-produce 50-100 samples, align the concentricity of the camera holes and the fit of the charging port one by one, test the button stroke to be ≥0.8mm, and confirm that all functions are normal before starting mass production to avoid the entire batch being scrapped due to mold deviations.

Second checkpoint: Fine-tune the shrinkage rate according to the model! Silicone materials will naturally shrink during molding. The shrinkage rate for regular models is controlled at 1.2%-1.5%, while for curved screen and foldable screen models, it needs to be reduced to 1.0%-1.3%. During production, sample installation is carried out every 2 hours, and the deviation of the frame thickness is measured with a micrometer to ensure that the silicone soft case fits the phone body without looseness or film lifting, especially avoiding the frequent problem of edge warping on curved screens.

Third checkpoint: Full inspection before delivery + simulated use testing! Sample 15% of the batch (higher than the industry standard of 10%). In addition to checking hole positions and buttons, 24-hour high-temperature (60℃) aging tests and 100 disassembly and assembly wear tests are added to ensure that the silicone soft case does not deform or loosen after long-term use. Unqualified products are directly rejected and never flow into downstream channels, reducing after-sales risks from the source.

Whether you are fitting regular models, curved screens, or foldable screens, and worried about batch fitting failures of silicone soft cases? Click on the online customer service or call directly, inform us of the target model and purchase quantity. We support real machine mold opening for 98% of mainstream models, with full-process quality inspection + defective rate controlled below 0.3%, and support small-batch trial orders to help you deliver safely without worries!

 

/通过：

How to control costs in bulk purchasing of silicone pads?

How to control costs in bulk purchasing of silicone pads?

Reject ineffective expenditures! A cost-control guide for bulk purchasing of silicone pads

Attention to bosses engaged in kitchenware, electronic accessories wholesale, or brand OEM! Is the high cost of bulk purchasing silicone pads directly squeezing your profit margins? In fact, by mastering 5 practical skills, you can accurately control costs while ensuring quality, and avoid wasting money!

First trick: Purchase directly from the source to save intermediate fees! Skip multi-level distributors and connect directly with silicone pad manufacturers. Not only can you get factory prices, but also avoid price markups by middlemen. Priority should be given to factories near silicone raw material production areas, as the raw material transportation cost is lower and there is more room for bulk price negotiation.

Second trick: Standardize specifications to reduce losses! Unify the thickness, size, and process standards of silicone pads to reduce the number of custom mold openings and lower mold costs. For example, integrate similar needs from different customers and adopt general specifications for production, which can not only improve production efficiency but also reduce waste of leftover materials.

Third trick: Balance prices by placing bulk orders in batches! Predict inventory based on market demand and adopt the “large orders with batch delivery” model. This way, you can enjoy the low-price advantage of bulk purchasing while avoiding capital occupation and silicone aging losses caused by inventory backlogs.

Fourth trick: Optimize the silicone material formula! Choose the appropriate silicone grade according to the usage scenario, without blindly pursuing high-end materials. For example, select regular food-grade silicone for ordinary civil scenarios and customize special silicone as needed for industrial scenarios, reducing raw material costs while meeting requirements.

Fifth trick: Integrate logistics and warehousing to reduce miscellaneous fees! Collaborate with peers to share logistics costs through group purchasing and transportation; choose warehouses close to sales areas for stockpiling to shorten delivery distances and reduce damage losses during transportation.

Whether you are a silicone pad wholesaler, a brand OEM factory, or an enterprise purchaser, want to accurately control the cost of bulk purchasing? Click on the online customer service or call directly, inform us of your purchasing needs and budget, and we will provide customized silicone pad purchasing solutions, supporting direct supply from the source and small-batch trial orders to help you reduce costs and increase efficiency!

 

/通过：

How to evaluate the technical strength of a silicone rubber factory?

How to evaluate the technical strength of a silicone rubber factory?

Don’t just look at the scale! Identify the authenticity of a silicone rubber factory’s technical strength from these 4 points

Looking for a silicone rubber factory to cooperate with? Just hearing claims like “ten years of experience” or “annual output of 10,000 tons” is not enough. Technical strength is the core of reliable products. In fact, you can see through it from 4 details. When purchasers and enterprises choose a factory, following these details can help avoid 90% of the pitfalls! First, check if the R&D team is strong. A truly capable factory will have dedicated formula R&D engineers who can adjust hardness and temperature resistance according to working conditions. For example, when making seals for new energy vehicles, they can increase the temperature resistance of silicone rubber to 250°C without deformation. Those who can’t even explain “Shore hardness” are probably not reliable in terms of technology.

Then, check how sophisticated the production equipment is. Reliable manufacturers use fully automatic vulcanizing machines and laser thickness gauges, which can control production errors within 0.02mm, resulting in silicone products with smooth edges and no burrs. Small workshops use old equipment, leading to products that are either inaccurately sized or unevenly vulcanized, which crack when used.

Testing capabilities are also crucial. Regular factories have a complete set of testing equipment to measure the aging resistance and chemical resistance of silicone, and each batch of goods is accompanied by a test report. Those without testing capabilities rely entirely on “visual inspection,” resulting in low product compliance rates and prone to quality disputes in the later stage.

Check if the customized cases are authentic. Those that can handle high-demand orders in medical, aerospace, and other fields must have qualified technologies. For example, when manufacturing components for surgical instruments, they can achieve non-toxic, odorless, and disinfection-resistant properties. Those that only produce general-purpose products and dare not take on complex customization orders are mostly of average technical level.

Whether you are looking for a silicone product supplier or need customized special silicone products and want to assess the technical strength of the manufacturer? Click on the online customer service or call us. We provide the qualifications of the R&D team, equipment lists, and testing reports, and help you evaluate the strength of potential合作 factories for free, making your cooperation more assured!

/通过：

How to distinguish food-grade soft silicone?

How to distinguish food-grade soft silica gel?

5 Practical Tips to Help You Quickly Identify the Authenticity of Food-Grade Soft Silicone

Whether you are buying baking molds, baby teething toys, or kitchen scrapers, everyone looks for “food-grade soft silicone“. However, the market is mixed with good and bad products, and it is easy to buy inferior ones! In fact, it is not difficult to distinguish. With these 5 practical tips, ordinary people can easily do it.

First, check the certification marks! Regular food-grade soft silicone must be labeled “for food contact” and must meet the domestic standard GB4806.11. Exported products should have FDA certification. Those that only claim to be “food-grade” but cannot provide test reports are probably made of recycled materials, so you can directly pass them by.

Then, smell the odor to distinguish good from bad! Real soft silicone basically has no peculiar smell when opened, at most a faint smell of silicone itself, which will dissipate after a few minutes of ventilation. Inferior products will emit a pungent chemical smell or plastic smell, which is due to the addition of harmful additives. Long-term contact with food is extremely dangerous.

Hands-on testing is very useful! Those that can rebound quickly and not deform after stretching are reliable. Inferior ones will become loose or even break when stretched. You can also boil them in boiling water for 5 minutes. Genuine products will not turn yellow, fade, or have peculiar smells after boiling, while fake ones will deform, crumble, and release harmful substances.

Choosing the right merchant is crucial! Prioritize brands or suppliers with a good reputation that can provide inspection reports. Don’t trust products from “three-no” small workshops. For bulk purchases, you should verify the production process to avoid pitfalls.

Don’t be greedy for low prices! High-quality silicone raw materials and high production standards mean the price will not be particularly low. Products that are too cheap are either fake or shoddy. It may seem like saving money, but it actually harms your health.

Whether you are an individual buying household soft silicone products or an enterprise customizing food-contact soft silicone products in bulk, are you worried about buying non-food-grade ones? Click on the online customer service. We provide soft silicone products that meet GB4806.11 and FDA certifications, support inspection report inquiries, and help you choose with confidence!

/通过：
, ,

Why does the surface ink of silicone products fall off easily?

Why does the surface ink of silicone products fall off easily?

Silicone products manufacturers
Silicone products are beautiful, because you can spray a variety of patterns on the surface, but many silicone product manufacturers in the spray, the pattern ink is easy to fall off, what is the reason? This article will explain some points that need to be paid attention to when spraying.

First, use special silicone spray ink

This is very important, if you take plastic spray ink to spray, it will definitely fall off, because different materials corresponding to the ink is not the same. Many customers encounter this problem, they can not find a professional silicone product manufacturer, may be the plastic factory packaging silicone products, plastic factory directly with inkjet spray onto the silicone products, the spray method is the same, but because the material is different, the effect is completely different.

Second, the surface of the product must be cleaned before spraying

It is necessary to dispose of the dust impurities on the surface, etc. If the PU is sprayed, the surface should also be treated with flame or discharge to ensure the ink fastness. If not cleaned, the effect of spraying on the surface will be poor.

Third, the surface of the product directly spray dyeing ink

To make the spray pattern more firm, transparent color sensitive oil, light oil, PU oil, etc. will be sprayed on the surface, so that the color will not fade easily, and there will be no color oil.

Silicone product injection process seems simple, but the above points deserve special attention. It is also important to choose the manufacturer of silicone products,

 

If you are interested in the above silicone rubber products or have questions, please click to contact our online customer service or telephone union, Aobo silicone rubber – 23 years of focus on precision automotive medical silicon rubber products source manufacturers。

/通过：