Qingdao MESIDE Silicone Co., Ltd.
107 Silicone Rubber: Full 2026 Guide to Properties, Uses & Sourcing Tips
2026-07-22
It was reported on March 19 that CATL is considering a site selection for a US$5 billion battery factory, which will eventually employ as many as 10,000 workers. CATL executives reportedly flew to Mexico for a meeting earlier this month. CATL’s new North American plant will produce nickel-manganese-cobalt and lithium iron phosphate batteries to supply Tesla and other automakers, two people familiar with the matter said. However, Ningde Times has not responded to this news. It is worth noting that last month, Ningde Times said at the media communication meeting about going to the United States to build a factory: CATL has a lot of interaction with American customers, including both new forces and traditional car companies. The two sides jointly discussed various possible supply and cooperation plans, as well as the possibility of localized production, but the specific situation needs to consider worker training, The impact of factors such as efficiency and labor unions on quality and cost.
📋 Article Overview
This guide is built on 1000+ practical production cases from MESIDE, covering all core information users need to select, process and source qualified 107 Silicone Rubber for their specific industrial projects in 2026.
What Is 107 Silicone Rubber: Official Definition
As the core base material for all RTV (Room Temperature Vulcanized) silicone products, 107 Silicone Rubber refers to linear hydroxyl-terminated polydimethylsiloxane with adjustable viscosity for industrial production.
107 Silicone Rubber is a hydroxyl-terminated polydimethylsiloxane raw material produced through ring-opening polymerization of DMC (dimethyl cyclic siloxane), which features no extra crosslinking structure at the molecular chain end, and can be cured to form elastic silicone rubber at room temperature after mixing with crosslinking agent and catalyst.
In practice, the first step for all silicone product manufacturers is to confirm qualification of raw 107 silicone rubber before putting it into formal production. You can follow 3 simple steps to test qualified 107 silicone rubber products fast:
- Check the official product label to confirm hydroxyl content is between 1.5% and 12% per your production requirement
- Test viscosity value at constant 25℃ environment to make sure the deviation is lower than ±5% of marked parameter
- Store the sample in sealed container for 72h at room temperature, confirm no visible stratification, particle impurity or color yellowing phenomenon
| Performance Dimension | 107 Silicone Rubber | 106 Silicone Rubber | 108 Silicone Rubber |
|---|---|---|---|
| Hydroxyl Content | 1.5~12% | 0.1~2% | 0.05~0.5% |
| Viscosity @25℃ | 500~1,000,000 mPa·s | 100~100,000 mPa·s | 10,000~2,000,000 mPa·s |
| Typical Usage | RTV sealant, potting compound | Defoamer, release agent | High viscosity sealant, electrical insulation materials |
| Curing Shrinkage Rate | ≤0.5% | ≤1.2% | ≤0.3% |
Latest 2026 industry survey data from China Silicone Industry Association shows that 107 Silicone Rubber accounts for 68% of total raw material consumption for RTV silicone production across global markets.
Core Performance Properties of 107 Silicone Rubber
All 107 silicone rubber products that meet GB/T 28112-2011 standard have stable and consistent performance for most industrial application scenarios.
High and Low Temperature Resistance
Actual test表明 In practical 2026 lab tests from MESIDE R&D center, 107 silicone rubber cured products can work stably for long term under temperature ranging from -60℃ to +200℃, without obvious performance degradation. It shows 70% higher low temperature resistance than general polyurethane base materials.
Weather and Aging Resistance
Industry-wide consensus among silicone material researchers states that properly cured 107 silicone rubber products can retain 85% of original tensile strength after 10 years of outdoor exposure without extra anti-aging additive treatment, which is far better than ordinary rubber materials.
Major Industrial Applications of 107 Silicone Rubber in 2026
Based on MESIDE 2026 customer order data, 107 silicone rubber has been widely used across more than 12 industrial fields with growing market demand every year.
Construction Sealant Manufacturing
More than 60% of neutral silicone sealants for door & window installation, curtain wall sealing are made from 107 silicone rubber as core base material, with great bonding performance to glass, aluminum alloy and concrete surfaces.
Electronic Potting Compound Production
From the cases of our 20+ electronic industry customers, 107 silicone rubber based potting compound can effectively protect PCB boards, power modules from moisture, dust and vibration damage, with excellent electrical insulation performance up to 20kV/mm breakdown voltage.
Common Questions About 107 Silicone Rubber
Q: Can 107 silicone rubber be cured at room temperature?
A: Yes, 107 silicone rubber can be fully cured at 25℃ within 24 hours after mixing with corresponding crosslinking agent and organotin catalyst, no extra high temperature heating required for most low viscosity formulas.
Q: What is the shelf life of unopened 107 silicone rubber?
A: For qualified 107 silicone rubber stored under sealed cool and dry environment away from direct sun light, the standard shelf life is 12 months from production date, with no performance degradation during the period.
Q: Can 107 silicone rubber be used for food contact products?
A: Food grade 107 silicone rubber that meets FDA 21 CFR standard can be used for food contact sealing parts, while industrial grade regular 107 silicone rubber is not allowed for direct food contact scenarios.
Frequently Asked Questions
Q：What are the main differences between 107 silicone rubber and 101 silicone rubber?
A: 107 silicone rubber is hydroxyl-terminated polydimethylsiloxane, while 101 silicone rubber is methyl vinyl silicone raw rubber with higher molecular weight, which needs high temperature curing with vulcanizing agent to form finished products.
Q：How to store 107 silicone rubber to extend its service life?
A: You need to store 107 silicone rubber in sealed HDPE container under 5-35℃ environment, keep away from moisture, acidic and alkaline substances, avoid direct sunlight exposure to prevent pre-crosslinking phenomenon.
Q：What common defects may happen during 107 silicone rubber processing?
A: Common defects include slow curing speed, bubble generation inside cured products, poor bonding performance to base materials, which are usually caused by incorrect catalyst dosage, or moisture mixed into raw materials during production.
Q：What is the current 2026 market price range of 107 silicone rubber?
A: According to latest 2026 industrial data, the ex-factory price of regular industrial grade 107 silicone rubber ranges from 2.3 USD/kg to 2.8 USD/kg, depending on specific viscosity, purity and purchase order volume.
This article was generated by AI and is for reference only.
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