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Choose Tengyu Chemical, Your expert in sealant solutions.

Tengyu Chemical is a specialty chemicals company with a globally leading position in the development and production of systems and products for bonding, sealing, damping, reinforcing, and protection in the building sector and automotive industry. Tengyu has exported to 60 countries around the world, Our main products are Acrylic sealant, Silicone sealant, polyurethane sealant and MS sealant. our high quality products are formulated to deliver superior results no matter how demanding or tough the job is.
Quality Assurance
10+ years of technical precipitation
GlobalLogistics
Global Logistics
Cooperate with many large logistics
QualityServiceProvide
Quality Service Provide
Inspect the goods every batch
24HoursOnline
24 Hours Online
Provide one to one technical service

About Us

Tengyu Chemical (Longkou)Co., Ltd

Established in 2013, Tengyu Chemical (Longkou)Co., Ltd specializes in the R&D and marketing of Acrylic sealants, Silicone sealants, MS polymer, Polyurethane sealants, Waterproof Coating etc. We always insist on our mission of "Make every customer satisfied with our quality and service". Our experienced staff is always welcome to discuss your requirements and ensure customer satisfaction. I hope to establish successful business relationships with clients around the world.
 

Diversified Sealant Production

Independent core technology, strict selection of raw materials, rigorous lean production, stable and reliable quality, professional and thoughtful service
 

The Core Technology Of Autonomy

We employ independent core technology, rigorous lean production methods, and maintain a commitment
to stable and reliable quality.
 
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PATENTS

Currently has 60+ domestic and foreign patents.
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PRODUCTS

Independently developed 50+
sealant products.
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TEAM

The technical team comprises 30 skilled professionals.
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YEARS

Currently has 60+ domestic and foreign patents.

Certified High-Performance Sealant

CE MS wood flooring adhesive
Epoxy Anchoring Adhesive Test Report
Epoxy Anchoring Adhesive Test Report
Epoxy Anchoring Adhesive Test Report
Epoxy Anchoring Adhesive Test Report
SGS Wood Flooring Adhesive
SGS Wood Flooring Adhesive
SGS Wood Flooring Adhesive
Contact Us
Longkou City, Yantai, Shandong, China 265701​​​​​​​​​​​​​​
+86 18615350735
jenny@sdsealant.com

Application Solution

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Independent core technology, strict selection of raw materials, rigorous lean production, stable and reliable quality, professional and thoughtful service
From Our Blog
Why Polyurethane Self Leveling Sealant Is Essential for Horizontal Joint Protection.png

Learn how polyurethane self leveling sealant protects horizontal concrete joints in roads, bridges, and runways. High elasticity, strong adhesion, and durable waterproof performance from Tengyu TP630.

21 February 2026
What Is Siliconized Acrylic Sealant_ Features, Applications & Benefits.png

Learn what siliconized acrylic sealant is, its key features, and where it is commonly used. Compare siliconized acrylic vs silicone sealant for construction and home improvement projects.

18 February 2026
MS Structural Sealant for Sealing of Various Joints in Construction.png

High-performance MS structural sealant for sealing of various joints in construction. Excellent elasticity, weather resistance, and multi-substrate adhesion. Discover Tengyu TM505 MS Polymer Sealant.

16 February 2026

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