About Kejian

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Founded in 2005 with a registered capital of 53.9 million yuan, Kejian is located in Songjiang District, Shanghai, with its own factory building area of 29,000 square meters. The company has three wholly-owned subsidiaries and four operating centers around the world: Shanghai headquarters, Southern Marketing Center, Northern branch and European Marketing center.

50 tons

Production capacity per day

29000 m²

Manufacture base

19+

Years in sealing materials industries

300+

Employees

Our Products

Kejian has been focused, on the research and development and manufacturing of butyl adhesive and tape, 
and has become a large-scale professional manufacturer in the field of butyl adhesive in the world.

KJ-FLEX

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KJ-TPE Expansion Joint Tape

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KJ-Waterproof Insulation Tape

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KJ-PVC Insulation Tape

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KJ- 698 Automobile Sealant

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KJ-666 Butyl Sealant

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KJ-662B High-Temperature Resistant Tacky Tape

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661 PE Caulk Strip/ Bath Tape

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Innovation Driven, Serving Globally

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Application Center

With the rapid development of the company, the products from butyl rubber as the main body, developed to silicone, modified polyurethane, polyolefin, PUR, acrylic and epoxy, etc., serving the construction, transportation, aerospace, new energy, communication power and new retail and other fields.

After 18 Years of Entrepreneurship, He Transformed from 'Competing' to 'Leading'!

After 18 Years of Entrepreneurship, He Transformed from 'Competing' to 'Leading'!

During the "Two Sessions" period, at the foot of Sheshan, there is a scientific research pioneer who, for more than a decade, has been at the forefront, striving to consolidate the advantages of the new materials industry and promoting the high-quality development of the Yangtze River Delta G60 Science and Innovation Corridor. He is Wu Haitao, Chairman and General Manager of Kejian Polymer Materials (Shanghai) Co., Ltd. Thanks to the call of the times and policy support, Kejian has achieved great success in the field it is involved in, realizing his dream of serving the country through industry.   Loyal to the Party, aspiring to serve the country with a "great ambition"     After graduation, Wu Haitao has been engaged in the chemical industry for a long time. His career started in a foreign-funded enterprise, where he rose from a technician to a factory director, and finally served as the deputy general manager. The container asphalt primer product he led the development of once held more than half of the global market share, creating outstanding performance. However, to realize his personal entrepreneurial dream and create more valuable products, he decided to resign from his high-paying position and founded Kejian in 2005. After 18 years of hard work, Kejian has become one of the professional manufacturers in the field of global butyl rubber sealants and tapes, with a value of more than 500 million yuan, and has been honored with national-level specialized and sophisticated "little giant", national-level high-tech enterprise, municipal-level specialized and sophisticated enterprise, and other honors. Wu Haitao has been awarded the leading talent in the field of science and technology in Songjiang District and the fifth top talent in Songjiang District, and has served as the executive committee member of the District Federation of Industry and Commerce, the vice chairman of the Sheshan Town Chamber of Commerce, and the chairman of the Association for Science and Technology, among other social positions.     Party-building empowers,deeply plows the track for an "accelerated run"   In 2017, when the company established its Party branch, Wu Haitao submitted his application to join the Party and became a member in October 2019. He firmly believes that only by leading by example and integrating Party building into the development of the enterprise can the cohesion and combat effectiveness of the company be effectively enhanced.     In recent years, the Party branch of Kejian has implemented the "Outstanding Seedling Cultivation Project," strengthening the training of technical backbone. "Party members are like the 'engines' of red color, releasing powerful development momentum, continuously promoting the enterprise to the fast track of high-quality development, and I am the maintenance man of these 'engines'," said Wu Haitao. He often leads the backbone of Party members to the front line of the workshop's research and development to understand the actual difficulties in promoting the project, and to sort out the key issues with the R&D personnel, adjusting the research and development ideas. So far, the company has obtained more than 100 patents and 3 software copyrights, some products have solved the technical "bottleneck," and are in a leading position internationally among similar products.     In 2018, he took the lead in establishing a pioneer team of Party members, which has since won 24 new product innovation awards and applied for 60 patents. In September of this year, a shared laboratory platform for equipment and instruments was jointly built with the Advanced Low-Dimensional Material Center of Donghua University. Wu Haitao was appointed as a high-quality development mentor for "New Materials · New Manufacturing," and together with the university, he has promoted Party building cooperation projects such as the "Innovative Craftsmanship Lecture," "Talent Touchstone," and "Chain Workstation."   People-oriented, Committed to Society's "New Model of Excellence"     Enterprise development must adhere to the people-centered philosophy. Wu Haitao pays great attention to the growth of employees. Under his leadership, the Kejian Party Branch insists on highlighting the orientation of "practicality," taking "solving worries for employees" as its own responsibility, and focuses on coordinating and resolving difficulties in employees' accommodation, transportation, food safety, and other aspects. In addition, he insists on fulfilling social responsibilities, actively participating in the three-year action plan to help poor areas in Songjiang District win the battle against poverty, and the amount of assistance for poverty alleviation, disaster relief, and charity donations has exceeded 500,000 yuan; he has paired up with surrounding residential areas for joint construction, regularly carrying out volunteer service activities such as visits and condolences, and in nearly three years, has organized thousands of people to participate in community volunteer services.

Steering the Future, Self-Healing Tires Lead a New Era of Safety

Steering the Future, Self-Healing Tires Lead a New Era of Safety

  With the continuous advancement of the automotive industry and the increasing consumer demand for safety performance, tire safety has become an indispensable part. In daily driving, tires may face unexpected situations such as punctures or cuts, which can lead to increased vehicle maintenance costs and even greater safety hazards. However, traditional tire repair often requires changing to a spare tire or towing for repair, consuming a lot of time and effort. Even with the use of "run-flat tires," which can continue to operate even after a loss of pressure, there are still issues such as poor comfort due to thick sidewalls and difficulty in disassembly and maintenance.   self-healing tireAccelerating the layout of new tire technology tracks   Self-healing butyl rubber lining for tire inner walls   In recent years, a new type of self-healing tire has been gradually gaining prominence. By coating the inner wall of traditional tires with a layer of polymer nano-rubber, it not only addresses the safety issues of traditional tires but also completes self-repair without affecting driving. Since its establishment, Kejian has had rich experience and professional expertise in the research and development and manufacturing of butyl rubber. Now it has successfully developed a self-healing tire material—self-healing butyl rubber, providing a new solution for tire safety.     This self-healing butyl rubber possesses a stable and unique self-repair capability. When a tire is punctured by sharp objects such as nails, the self-healing compound rapidly encapsulates the sharp object, effectively preventing air leakage. When the foreign object is removed, the compound automatically fills the resulting hole, thereby ensuring the tire's air pressure remains stable and safeguarding the occupants' safety. In addition, this material also has excellent wear resistance and anti-aging properties, which can extend the service life of the tire.   The Kejian R&D team has maintained deep mutual trust with partners from the initial stages of formula design. The tire cleaning and butyl rubber application equipment, as well as the equipment procedures independently developed by partners, can fundamentally solve the current difficulties of poor dynamic balance and unstable compound in self-healing tires. When the equipment and compound match is optimal, it makes the self-healing tire more stable at high speeds and also ensures the even distribution of the compound, enhancing the tire's service life.   Kejian's self-healing rubber has now passed tests for low-temperature air tightness, durability, and high-speed performance   On February 1, 2021, the national standard GB/T 38510 "Evaluation of Self-sealing Performance for Tyres Coated with Self-sealing Material" was officially implemented. This marked the official opening of the self-repairing tire market. Currently, tires coated with Kejian's self-healing rubber have passed the strict tests of low-temperature air tightness, puncture high-speed performance, and puncture durability in accordance with GB/T 38510-2020, meeting the national safety standards .   After several years of research and testing, Kejian has successfully applied self-healing butyl rubber to tire production, breaking through the limitations of traditional tires and injecting new vitality into the development of the automotive industry. Through close cooperation with various car manufacturers, we have jointly exchanged ideas and attempted to implement self-healing tire products in the assembly plant.      With the continuous popularization of new energy vehicles and the significant limitations new energy vehicles face regarding spare tires, an increasing number of new energy models will come standard with self-healing tires. It is foreseeable that with the continuous iteration and improvement of self-healing tire technology, it will provide people with more secure, convenient, and efficient travel protection in the future.

A Dedicated 'Carbon Neutrality' Practitioner Who Embraces Environmental Protection As His Personal Mission
Lean Feast, Wisdom Sharing | A Marketplace Event on Efficiency and Innovation

Lean Feast, Wisdom Sharing | A Marketplace Event on Efficiency and Innovation

On March 30th, the second Lean Project Market event was held with great enthusiasm.     Lean management is a customer demand-oriented management approach that pursues excellence and continuous improvement. Its core lies in identifying and eliminating all non-value-added activities and waste to maximize value creation, helping enterprises to enhance overall efficiency. Lean management also emphasizes continuous improvement, which means constantly seeking and solving problems, and continuously optimizing processes. It encourages employees to actively participate, to innovate and solve problems, thereby promoting the progress of the enterprise. Lean management is not just a management tool or technique, but also a corporate culture. It requires enterprises, from top leadership to front-line employees, to uphold the philosophy of lean, integrating the elimination of waste and continuous improvement into their daily work.   Lean Feast, Wisdom Sharing," Kejian Shares' second Lean Project Market event is in full swing. At the beginning of the event, the company's chairman, Wu Haitao, delivered the opening speech.He shared the following three points with everyone:   1. What is lean production? Lean production is all behavior that reduces costs and increases efficiency without changing or improving quality. 2.Why is lean production necessary? He shared a case of a supplier who unfortunately exited during this year's cost reduction. He used this fact happening around us to show everyone the reality of the survival of enterprises in the fierce market competition, hoping that each of us will strengthen the company's core competitiveness with our own efforts. 3.The value that the company has been promoting lean production for three years is: to provide effective value to the entire industry chain and supply chain for Kejian, and to our common bread and butter (our customers), providing important chips in the current severe market environment of involution.   The future development of the company relies either on innovation or lean production. He emphasized the importance of lean production as one of the two legs of the company's development and gave great encouragement to the team's expectations. This was an inspiring opening that set the tone for our day-long event.   Project Exhibition   At the exhibition marketplace, various lean champions showcase the results of their significant lean projects from the past year. This is a rare opportunity for us to get up close and understand the innovative aspects and implementation effects of each project, and also serves as a stage to display the outcomes of team collaboration. Our colleagues attentively listened to the lean champions' sharing, learned new knowledge and skills, and engaged in in-depth discussions with the project team members to explore how to better integrate the principles of lean management into our daily work.   Exciting Game Segment     To make the event more lively and interesting, we have prepared a series of exciting game segments. Through these challenging games, we can not only relax but also deepen communication and cooperation within the team in a relaxed and joyful atmosphere. The game segments include, but are not limited to, speed races, creative construction, problem-solving challenges, etc., with each game designed to exercise the team's collaboration skills and innovative thinking.   Participation Awards     Active participation in the activities also offers a chance to win a variety of gifts. Let's enjoy this feast of knowledge and fun, and take back a special memory. Today, we have witnessed the spirit of teamwork, shared sparks of innovative thinking, and experienced the practical application of lean management. This is not only an exchange of knowledge but also a touch of the soul. With this, our lean project exhibition marketplace event has come to a successful close. Thank you to every colleague who participated; it is your enthusiasm and wisdom that made this event such a success. Let's carry the gains and joy of today, continue to move forward on the path of lean, and together create a more efficient and outstanding work environment.

Partners
Joining the ranks of excellence and walking alongside excellence, Kejian Polymers looks forward to striving forward with you!