BAZ Washers, also known as Umbrella Washers or Bowl Washers, are highperformance sealing components used for waterproofing, vibration damping, and load distribution. They consist of a dome-shaped rubber layer bonded to a metal backing, forming an “umbrella” profile that protects fasteners from moisture, corrosion, and structural stress.
Learn more about BAZ / Bonded Sealing Washers on UTA’s official page
Why Use BAZ / Umbrella Washers
- Reliable waterproof seal to prevent leakage in roof and metal panel systems
- Effective vibration reduction to extend equipment life
- Even pressure distribution that prevents deformation or cracking
- Proven outdoor durability, ideal for exposed or high-moisture environments
Why Choose EPDM Rubber for Washers
- Superior UV and weather resistance – ideal for outdoor use
- Excellent ozone and chemical resistance – maintains integrity in harsh environments
- Wide temperature tolerance – stable under both heat and cold
- Long service life at lower cost – outperforms many other rubber materials in durability and value
Compared to standard rubber, EPDM delivers long-term reliability for sealing applications in roofing, solar, and automotive industries.
How to Assemble BAZ Washers
1. Place the washer under the screw head with the rubber side facing the mounting surface
2. Tighten the screw gradually – the rubber compresses and forms a tight, weatherproof seal
This ensures secure fastening and long-term protection in all weather conditions.
Common Applications
- Roofing and metal panel fastening
- Solar panel mounting systems
- Automotive underbody protection
- HVAC units and outdoor enclosures
- Industrial machinery exposed to vibration or moisture
Frequently Asked Questions (FAQ)
Q1: What are BAZ washers used for?
They are used to create a waterproof, vibration-resistant seal under fasteners in outdoor and industrial applications.
Q2: Why use EPDM rubber instead of standard rubber?
EPDM offers better resistance to weather, UV, ozone, and chemicals, making it more durable for long-term outdoor use.
Q3: Can UTA manufacture custom-sized washers?
Yes. UTA supports custom dimensions, rubber types (EPDM, HNBR), and coating options for various industry needs.
Q4: What industries use BAZ or umbrella washers?
Common applications include roofing, solar panel installation, automotive bodywork, and outdoor HVAC or machinery.
Discover BAZ / Umbrella Washers and their advantages in waterproof sealing and vibration control. Learn why EPDM is the best rubber for sealing and why UTA is your go-to manufacturer in Taiwan.
Why Choose UTA as Your Washer Supplier
UTA, located in Taiwan, is a professional manufacturer of BAZ / Bonded Sealing Washers, offering:
- Premium materials: EPDM, HNBR rubber, and high-precision carbon/stainless steel
- OEM & ODM capability: Custom sizes and specifications upon request
- Fast global delivery: Reliable logistics and short lead times
- Consistent quality: In-house molding and testing to ensure product durability
Explore our bonded sealing washer product range here:
https://www.uta.com.tw/bonded-sealing-washer.htm |
