In response to the evolving needs of the industry, WINGKAY has made sealing system technology services its guiding principle, providing clients with comprehensive, systematic sealing solutions and related products. By applying a systematic approach to optimize the sealing solutions for standard doors, windows, and curtain wall engineering, we elevate the user experience of our clients' products—enabling standard products to achieve the performance of system products. This not only improves product quality, but also enhances their application specificity in various fields.
WINGKAY boasts a highly skilled R&D team with years of experience in the development of rubber sealing systems, as well as an in-house mold development team. We are capable of conducting technological research and development across multiple domains, including structural systems for doors, windows, and curtain walls, sealing systems, and production process systems. This enables us to provide clients with comprehensive and well-founded technical support, as well as high-quality sealing solutions and products.
WINGKAY is equipped with its own laboratory, furnished with a variety of testing instruments such as: rubber tensile testing machines, Mooney viscometers, rubber abrasion testers, ozone aging test chambers, vulcanization testers, rubber hardness testers, and high- and low-temperature test chambers. The company also operates advanced production lines for TPV, TPE, and other SANTOPRENE materials, microwave rubber vulcanization lines, microwave plus hot air combined rubber vulcanization lines, and a state-of-the-art PU coating line at the forefront of global standards.
| EN Abbr. | Silicon | EPDM | Neoprene | TPV | PVC | |
| Property Category | ① Hardness | Extruded 60A–85A Molded 20A–85A |
Extruded 60A–85A Molded 20A–85A |
Extruded 60A–85A Molded 20A–85A |
Adjustable 40A-95A | Adjustable 40A-95A |
| ② Density | 1.2-1.32g/cm³ | /Solid 1.18-1.35g/cm³ Foamed 0.4-0.8g/cm³ |
1.2-1.43g/cm³ | 0.96-0.99g/cm³ | 1.3-1.6g/cm³ | |
| ③ Tensile Strength | 5-8MPa | 5-12MPa | 5-12MPa | 5-8MPa | 5-8MPa | |
| ④ Tear Strength | Poor | Excellent | Excellent | Moderate | Average | |
| ⑤ Elongation at Break | 250%~550% | 250%~650% | 250%~650% | 250%~550% | Around 200% | |
| ⑥ Resilience Recovery | Excellent | Excellent | Moderate | Moderate | Poor | |
| ⑦ Weather & Temperature Resistance | （-50℃~+180℃） | （-60℃~+150℃） | （-30℃~+120℃） | （-40℃~+120℃） | （-20℃~+100℃） | |
| ⑧ Colorability | Easy to color | Usually black | Usually black | Easy to color | Easy to color | |
| Comprehensive Performance Description | Excellent weather resistance, especially high and low temperature resistance | Superior weather resistance, aging resistance, and environmental performance compared to Neoprene | Certain degree of flame retardancy, but produces substantial smoke and toxicity when burning, better oil resistance | Overall properties such as temperature resistance, tear strength, and resilience are slightly inferior to EPDM | Becomes hard and brittle over time, loses elasticity, poor aging and weather resistance, subpar low temperature performance | |
ASTM C864-05(2019)
ASTM C1115-17 (2022)
(American standard silicone)
ABS 4255-1-1986 European Standards
ADIN 7863
GB/T 24498-2009
GB/T 24498-2025
ISO 188-2011 Chinese
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Address: Unit 302, United Building, 17–19 Jubilee Street, Central, Hong Kong
Tel: +852 2904 6818
FAX: +852 2562 5698
Address: No. 8 Zhongfu Road, Zhongyong Industrial Zone, Leliu Town, Shunde District, Foshan, Guangdong, China (PC 528322)
Tel：+86 757 2533 0008
FAX: +86 757 2533 0009
Email：wingkay@wingkay.com
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