
Our architectural sealing strips provide an integrated solution for waterproofing, soundproofing, and thermal insulation. Engineered for modern green building projects, these seals offer exceptional UV resistance and durable elasticity, ensuring a crack-free service life of 15+ years. Designed to adapt to building expansion gaps, they balance aesthetic integration with high-performance protection.
Temperature Range -40°C to 120°C
Hardness Range 50 to 75 Shore A
Elongation Rate ≥300%
Sealing Grade IP65
Complies with ISO 11600 and GB/T 14683 architectural standards.
Fully certified under the ISO 14001 Environmental Management System.
Verified through rigorous UV testing for long-term outdoor exposure.
Eco-friendly materials optimized for sustainable construction projects.
With a fully vertically integrated production system, UPT achieves full-process control from polymer material formulation R&D to finished product certification and delivery.
Our company has successively obtained the three authoritative certifications of IATF 16949 Automotive Quality Management System, ISO 14001 Environmental Management System and ISO 9001 Quality Management System, fully meeting the stringent standards of various industries worldwide, especially those in the automotive sector.
During production of sealing strips, our QC engineers cut cross-sections for 10x magnified checks every 20 minutes. They accurately measure the rubber products’ dimensions, tolerances and geometric errors to ensure they match design drawings and meet customer assembly needs.
We also test the products’ physical and chemical properties per standards to guarantee complete vulcanization and stable performance. Friction and wear tests are carried out to check the abrasion resistance of rubber products and their coatings, while mechanical tests verify the material’s tensile and tear strength.

20-Min Interval Cross-Section Checks

10x Magnification | Precision Guaranteed

Tested for Tensile & Tear Resistance
Spanning approximately 500 square meters, our laboratory is fully equipped with advanced apparatus and boasts strong testing capabilities.We can independently conducting comprehensive testing on a wide range of rubber products。

Ozone Aging Test Chamber

Low Temperature Brittleness Tester

Electronic Tensile Testing Machine

High and Low Temperature Alternating Humidity and Heat Test Chamber

Constant Temperature Water Tank

Aging Test Chamber

Mooney Viscometer

Automotive Seal Strip Abrasion Tester

Automotive Interior Combustion Test Chamber

Fully Automatic Image Measuring Instrument

Rotorless Rheometer / No Rotor Curemeter

Xenon Lamp Weather Resistance Test Chamber





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Support
A: Yes. Through our Material Tuning process, we can adjust the EPDM or Nitrile formulation to withstand specific oils, acids, or industrial solvents. Simply provide your MSDS or environmental requirements.
A: We use high-precision molds and online laser measurement during the extrusion process. All profiles undergo Lab Validation to ensure they meet the ±[X]mm tolerance required by your CAD drawings.
A: Usually, mold development takes 7-12 days, and initial samples are provided within 3-5 days after tooling completion for your internal testing and fitment check.
A: Yes, our products meet IP67/IP68 sealing grades and comply with REACH/RoHS standards. We provide full test reports during the Lab Validation stage upon request.
A: We offer flexible Batch OEM Supply. While we have standard MOQs for mass production, we provide special support for specialized industrial projects with smaller volume requirements.
A: We use reinforced reels or custom-length flat packing with anti-static protection. Our Global Shipping protocol ensures that even the softest sponge profiles arrive without permanent compression set.