Recent Posts
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![Meet TYM at K 2025 -The World’ s No.1 Trade Fair for Plastics and Rubber]()
Meet TYM at K 2025 -The World’ s No.1 Trade Fair for Plastics and RubberWelcome to the World’s No.1 Trade Fair for Plastics and Rubber -K 2025, taking place from October 8–15, 2025 at Messe Düsseldorf, Germany. As a professional LSR injection molding machine, mold, and robot solution provider, TYM Technology Co., Ltd. is proud to present our latest innovations at Booth 16E77.
09/23/2025
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![ISO 9001, CE, CCC: What These Certifications Actually Mean for Your Equipment Purchase]()
ISO 9001, CE, CCC: What These Certifications Actually Mean for Your Equipment PurchaseWhen you're evaluating LSR injection molding machines from an overseas supplier, certification logos on a company website can start to blur together. ISO 9001, CE, CCC — they all sound reassuring, but they don't all mean the same thing, and they don't all matter for the same reasons. Understanding what each certification actually covers will help you ask better questions during due diligence and avoid assuming a certificate guarantees something it doesn't.
07/17/2026
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![Turnkey LSR Injection Molding Solutions]()
Turnkey LSR Injection Molding SolutionsLaunching a liquid silicone rubber (LSR) injection molding operation involves far more than simply purchasing a machine. From material selection and mold design to automation integration and staff training, the journey from concept to full-scale production presents numerous challenges—each with the potential to delay your time-to-market and inflate your budget.
07/14/2026
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![Industrial Silicone Seals & Waterproof Parts: LSR Guide]()
Industrial Silicone Seals & Waterproof Parts: LSR GuideThis guide helps product and sourcing engineers who need reliable industrial sealing components-gaskets, O-rings, grommets, and enclosure seals-understand why LSR injection molding is the preferred process for waterproof parts at volume, and how to specify them.
07/10/2026
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![LSR Prototype to Production: Timeline & Process]()
LSR Prototype to Production: Timeline & ProcessA typical liquid silicone rubber (LSR) part moves from prototype to mass production in about 10-18 weeks, spanning design/DFM, prototyping, production mold fabrication, T1 sampling and validation, and pilot-to-ramp - with mold build and validation being the longest stages.
07/07/2026
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![LSR Injection Molding Machine Parameters Explained]()
LSR Injection Molding Machine Parameters ExplainedAn LSR injection molding machine spec sheet lists dozens of numbers, but only a handful decide whether your silicone parts cure fully, stay flash-free and cost little to run. This 2026 guide explains the parameters that matter most, so engineers and buyers can compare machines on the specs that actually affect part quality, not marketing figures.
07/02/2026
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![Automatic vs Semi-Automatic Silicone Molding Lines]()
Automatic vs Semi-Automatic Silicone Molding LinesThis guide is for production and procurement decision-makers sizing a new LSR line—comparing the two configurations across throughput, quality, cost, and payback so you can match the investment to real demand.
07/01/2026
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![LSR Cold Runner Systems: Cut Waste & Cost]()
LSR Cold Runner Systems: Cut Waste & CostLSR cold runner system is the single fastest way to cut material waste and labor out of liquid silicone rubber molding. By keeping the silicone liquid until it reaches the cavity, it eliminates cured runners and trimming entirely. This guide helps process engineers and buyers decide when a cold runner pays for itself.
06/30/2026
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![How to Select LSR Injection Molding Machine Tonnage]()
How to Select LSR Injection Molding Machine TonnageChoosing the right clamping force is the single most consequential spec decision when buying a liquid silicone rubber (LSR) injection molding machine. Pick too little and you fight flash on every shot; pick too much and you pay for energy and floor space you never use.
06/29/2026
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![Liquid Silicone Rubber Market 2026: Size, Growth & Demand Drivers]()
Liquid Silicone Rubber Market 2026: Size, Growth & Demand DriversThe global liquid silicone rubber (LSR) market is valued at roughly USD 3.4-3.8 billion in 2026 and growing about 7-9% annually, led by medical-grade demand (~44% of revenue) and rising EV production. Asia-Pacific dominates manufacturing capacity.
06/26/2026
The Effect of Regrind Material Ratios on Processing Speed
Regrind, or recycled sprues, runners, and rejected parts, is commonly reintroduced into the virgin material stream to reduce waste and material costs in injection molding. While economically beneficial, the proportion of regrind used can influence processing speed. Regrind particles often have a different shape (more irregular) and potentially altered molecular weight compared to virgin pellets due to thermal history during initial processing. This can affect how the material flows and packs in the barrel and mold, potentially requiring adjustments that impact cycle time.
High regrind ratios can lead to variations in melt viscosity and flow characteristics. This inconsistency makes it harder to establish a stable, optimized process. To compensate for potential flow variations, processors might need to reduce injection speeds or increase back pressure to ensure proper mixing and homogenization. This conservative approach, while ensuring quality, inevitably slows down the overall process. Additionally, regrind can contain more air or volatiles, necessitating more rigorous drying or venting, which can add time to the preparation or cycle phases.
Degradation is another concern. Each reprocessing cycle subjects the polymer to heat and shear, which can lead to chain scission and a reduction in molecular weight. Lower molecular weight material tends to have a higher Melt Flow Rate (MFR) and flows more easily, which might seem beneficial for speed. However, it often results in poorer mechanical properties and increased shrinkage, potentially leading to quality issues that require slower, more controlled processing or longer cooling times to compensate.
To mitigate these effects and maintain speed, it's crucial to carefully control the amount and quality of regrind used. Limiting regrind to a specific percentage (often 10-25%, depending on the material and part requirements) helps maintain consistency. Blending regrind thoroughly with virgin material and ensuring it's properly dried are essential practices. Some processors use dedicated dosing units for precise regrind introduction. By managing regrind usage effectively, manufacturers can reap its economic benefits without significantly compromising processing speed or part quality.