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by Adchem

1. All purpose flashing tape used to seal windows, door, roof transitions and all other exterior openings.

NewFLASH® Flashing tape by Adchem is a clean, easy to use co-extruded Polyethylene all purpose flashing tape. NewFLASH® window flashing tape provides a water tight seal around windows, doors, roof openings, decks, ledger boards, drip caps, sills and all other openings of the building envelope. Available in 4", 6" and 9" widths for versatile application. Our NewFLASH® flashing tape can also be die-cut for rounded windows and custom sizes.

NewFLASH® flashing tape is an easy to use flashing system that won't get messy or difficult to manage in higher temperature applications. It is .052" thick and doesn't require any primers to install. NewFLASH® falls under the highest level of Thermal Exposure (Class 3) and can be installed in temperatures as low as -15°F and up to 180°F and still remain clean and easy to handle.


NewFLASH® tape is laminated with a durable acrylic adhesive on one side and an easy to remove blue polypropylene liner. Rolls are supplied in 75' lengths and are sold in carton quantities.

(all prices are in US Dollars)

NewFLASH® Polyethylene Flashing Tape

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 Item #






0.052" 4" 75'
1 Roll
Starting from: 5 cartons $26.77
Starting from: 10 cartons $26.35
0.052" 6" 75'
1 Roll
Starting from: 5 cartons $38.06
Starting from: 10 cartons $37.45
0.052" 9" 75'
1 Roll
Starting from: 5 cartons $54.94
Starting from: 10 cartons $54.06

Sealant Compatibility Testing

The NewFLASH® system has been through extensive sealant compatibility tests and demonstrates near universal sealant compatibility in AAMA 713-08 testing.  NewFLASH® Flashing Tape has been tested for the following:

  1. Nova Flex silicone (white)
  2. Polyseamseal Paintable Acrylic with silicone (white)
  3. DAP Side Winder (white)
  4. Sashco Lexel super elastic sealant (white)
  5. GE Window and Door silicone I (white)
  6. Bond & Fill Flex silicone (white)
  7. DAP Alex Plus silicone (tan)
  8. Pro-Series OSI silicone (clear)
  9. Tremco TremGlaze U1400 polyurethane sealant (white)
  10. PL Polyurethane Premium Construction adhesive (beige)
  11. GE Silicone II Window & Door with Boiseal (white)
  12. Phenoseal Vinyl Adhesive Caulk (translucent)
  13. DAP Gutter & Flashing Butyl Flex rubber adhesive (white)
  14. DAP Dynaflex 230 (white)
  15. Tremco TremGlaze S500 Window & Door installation silicone
  16. Sashco Lexel super elastic sealant (white)

Foam Tape Lingo

So ... Just what does "differentially wound" mean anyway? Find out here.

Custom Sizes

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Lead Time

At we keep all our products in stock. Orders typically ship in 1-3 business days. For more details see our shipping information page.