When choosing roofing screws or Self-Drilling Screws for outdoor applications, many people focus on steel quality and corrosion-resistant coatings while overlooking an important detail: the EPDM washer.
The EPDM washer is the component that directly creates a watertight seal between the screw and the material surface. The quality of the washer has a significant impact on the water resistance, durability, and service life of the entire fastening system.
That is why BoldTech’s high-quality screw products use EPDM washer instead of conventional rubber washers.
What Is an EPDM Washer?
EPDM (Ethylene Propylene Diene Monomer) is a high-performance synthetic rubber developed for demanding outdoor environments. Thanks to its resistance to UV radiation, aging, and high temperatures, EPDM is widely used in construction, solar energy systems, and applications requiring long-term durability.
High-quality EPDM washers help improve waterproofing performance, resistance to aging, and the service life of fastening systems in outdoor projects.
Durable Screws Combined with EPDM Washers
EPDM Washers vs. Conventional Rubber Washers
| Criteria | EPDM Washers | Conventional Rubber Washers |
|---|---|---|
| UV resistance | Excellent | Moderate |
| Ozone resistance | Excellent | Limited |
| Working temperature | -40°C to +120°C | Typically -20°C to +70°C |
| Short-term peak temperature | Up to 150°C | Typically below 90°C |
| Long-term elasticity retention | Excellent | Gradually decreases over time |
| Weather resistance | Excellent | Moderate |
| Waterproofing performance | Stable over the long term | Decreases as the material ages |
| Service life | High | Lower |
| Maintenance cost | Lower | Higher |
Why Does BoldTech Use EPDM Washers?
BoldTech uses EPDM Washers because they provide:
- ✔ Effective and stable long-term waterproofing
- ✔ Excellent UV resistance and resistance to aging
- ✔ Reliable performance under harsh weather conditions
- ✔ Long-term elasticity and sealing performance
- ✔ Reduced risk of future maintenance and repairs
Connect with BoldTech Fasteners
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- Email: info@boldtechfasteners.com
- Hotline: +84 966 666 056
At BoldTech Fasteners, we are committed to delivering high-quality fastening solutions that meet technical standards while enhancing the durability and aesthetic value of every project.
Contact BoldTech Fasteners today for professional product recommendations, technical support, and the latest updates on fastening solutions and construction fastening technologies.