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EPDM Bonded Washer

EPDM Bonded Washers are sealing washers combining a metal backing with an EPDM rubber layer for watertight fastening. They provide load distribution from the metal side while the EPDM side compresses to create a durable weatherproof seal. Manufactured to ASTM and DIN standards, they are available in carbon steel, stainless steel, and aluminum versions. These washers are resistant to UV, ozone, and weathering, making them ideal for outdoor use. They are widely used in roofing, cladding, metal buildings, and applications requiring leak-proof fastening.

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Premium Quality EPDM Bonded Washer Supplier in Dubai, UAE

Unifastener Industries LLC is a reliable supplier and manufacturer of premium-quality EPDM Bonded Washers in Dubai, UAE. The company specializes in industrial fastening and sealing solutions designed for roofing systems, cladding works, construction projects, engineering installations, and heavy-duty industrial applications. EPDM Bonded Washers are specially designed sealing washers consisting of a metal washer bonded with EPDM rubber to provide secure waterproof sealing and reliable load distribution. These washers help prevent water leakage, vibration loosening, and surface damage while ensuring stable fastening performance in indoor and outdoor environments. Manufactured using high-grade materials and advanced production standards, EPDM Bonded Washers provide excellent durability, weather resistance, corrosion resistance, and long-lasting sealing performance for demanding applications.


Standards:
– ASTM D2000 (EPDM rubber classification for sealing applications)
– ASTM F844 (general-purpose washers)
– DIN 125 (flat washers, metallic base)
– ISO 7093 (large series washers, reference for bonded type)

Grades:
– ASTM Metal Grades: A36, A307, Stainless Steel A2/A4
– Rubber Grade: EPDM (ethylene propylene diene monomer, ASTM D2000 compliant)

Material Options:
– Carbon steel with EPDM bonded rubber
– Stainless steel with EPDM bonded rubber
– Aluminum with EPDM bonded rubber

Diameter Range: M4 to M30 (metric) / 3/16″ to 1-1/4″ (inch)

Thickness Range: 1.5mm to 6mm

Types:
– Flat EPDM bonded washer
– Domed (sealing) EPDM bonded washer
– Wide OD sealing washer (for roofing and cladding)

Coating Options (Metal Part):
– Zinc electroplated
– Hot-dip galvanized (ASTM A153 / DIN EN ISO 1461)
– Stainless steel natural finish
– Nickel plated (optional)

Add-ons:
– Can be supplied with self-drilling screws or roofing bolts
– Available in bulk or small roofing kits
– Supplied with EPDM hardness range 60–70 Shore A for durability

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