York 304 Self Adhering Stainless Steel Flexible Flashing has been designed with a flexible 2 mil sheet of type 304 stainless steel, 8 mils of butyl adhesive and a siliconized release liner. York 304 is a self-adhering metal flashing that offers best in class puncture and tear resistance. It can be applied from 20°F to 170°F and stays stable and air tight from -70°F to 250°F.
York 304’s bare stainless steel face is compatible with the majority of air barriers, sealants, insulations, below grade waterproofing and roofing membranes, which makes it a terrific transition flashing. Excellent bond to a variety of substrates like OSB, exterior gypsum, plywood, concrete, metals and air barrier materials. York 304 contributes toward LEED by satisfying EA Credit 1 (optimize energy performance) and EQ Credit 4.1 (low emitting materials).
- Butyl adhesive/watertight bond
- Available in type 304 and type 316 stainless steel
- Flexible, easy to cut and form by hand
- UV resistant
- 20-year warranty
- Fire resistant: ASTM E84 Class A material
- Mold resistant: passes ASTM D3273
- Passes air barrier material test: ASTM E2178-13
- Excellent bond to a variety of substrates like OSB, exterior gypsum, plywood, concrete, metals, and air barrier materials
- York 316 SA available for coastal or highly corrosive environments
- Bare stainless steel surface for sealants to adhere to
- No primer required
- Passes AAMA-711-20
- Air barriers
- Spray polyurethane foam
- Insulation boards
- Below grade waterproofing
- Roofing membranes
- Construction sealants
Product is typically purchased with York UniverSeal 100.
Contact customer service for technical data and submittal information.
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