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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)?

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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!

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