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About BY.

Leading the Future of Automotive Glass Bonding

Premium Quality | Fast Curing | Cost-Effective Solutions

With over  20 years of expertise, BY is a leading innovator in polyurethane adhesives, specializing in automotive glass bonding. Our high-performance solutions provide exceptional adhesion, durability, and weather resistance, ensuring safety and reliability for OEM manufacturers and auto glass professionals worldwide.

Dedicated to providing stronger, safer, and more efficient bonding solutions

Become the leading polyurethane adhesive supplier for automotive glass bonding 

Empower auto glass shops with high-quality products & professional service

Drive innovation in the global automotive aftermarket industry

Leading R&D Ability Lab

Become the leading polyurethane adhesive supplier for automotive glass bonding worldwide

Empower auto glass shops with high-quality products & professional service

Drive innovation in the global automotive aftermarket industry

Advanced Instruments & Equipment

How BY lead the industry

2003

Establishment of BY

BY (Zhengzhou Boyou Sealant Co., Ltd.) was founded, specializing in research, development, and production of polyurethane adhesives for automotive glass bonding.

2008

Industry Leadership Achieved

Annual sales volume exceeded industry benchmarks, establishing BY as a leader in China’s polyurethane adhesive market.

2014

Nationwide Growth

Successfully set up 14 branch offices across China, including Hangzhou, Beijing, Guangzhou, and Nanjing, making BY the first company in the polyurethane industry to complete a nationwide distribution system.

2019

Global Expansion

Launched an international growth strategy, establishing branch companies in Korea, Thailand, and Russia, paving the way for global market development.

Today, BY continues to expand its global footprint, exporting high-quality automotive glass bonding adhesives to over 10 countries across Southeast Asia, Africa, and Europe. With a commitment to innovation, sustainability, and superior product performance, BY is dedicated to shaping the future of the global automotive adhesive industry.

Present & Future

Innovation & Global Reach

Today, BY continues to expand its global footprint, exporting high-quality automotive glass bonding adhesives to over 10 countries across Southeast Asia, Africa, and Europe. With a commitment to innovation, sustainability, and superior product performance, BY is dedicated to shaping the future of the global automotive adhesive industry.

BY SEALANT

Bonding Strength

Sealing Trust

OUR PRODUCTS

- 8501

- 8505

- 8506

- Activator

- Primer

GET IN TOUCH

Explore the perfect adhesive solution for your needs!

VISIT US

Raleigh, NC

EMAIL US

OPENING HOURS

Mon - Fri: 10am - 5pm

© 2025 by BY SEALANT CO 

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