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Alpha® Nichigo G-Tape™ 3040 Series — High-Adhesion Acrylic Flashing Tape

Nichigo G-Tape™ 3040BK Black is a high-adhesion acrylic flashing tape engineered for windows, doors, and deck beam protection. AAMA 7-11 Level 3 Class A certified, it delivers permanent waterproof bonding without primer across an all-weather range of -40°F to +176°F (-40°C to +80°C). Highly weather- and UV-resistant, it hand-tears straight and easy — a favorite of deck builders across the United States for extending joist longevity and shedding water from critical envelope details.

Features

  • Perfect flashing for windows, doors, and deck beams
  • Hand tearing — straight and easy, no knife required
  • Waterproof seal for envelope-critical details
  • All-weather usage: -40°F to +176°F (-40°C to +80°C)
  • AAMA 7-11 Level 3 Class A certified
  • Highly weather- and UV-resistant
  • Permanent acrylic adhesion — no primer required
  • Cleanly removes from face-to-face adhesive contact
  • Available as single roll or by the case
Part No. Size Type Color Bond UPC
3040BK-GT-2-65 2" x 65' (50mm x 20m) Acrylic/Flashing Black Permanent 850011740231
3040BK-GT-4-65 4" x 65' (100mm x 20m) Acrylic/Flashing Black Permanent 850011740248
3040BK-GT-6-65 6" x 65' (150mm x 20m) Acrylic/Flashing Black Permanent 850011740255
3040BK-GT-9-65 9" x 65' (225mm x 20m) Acrylic/Flashing Black Permanent 850011740262
3040BK-GT-12-65 12" x 65' (300mm x 20m) Acrylic/Flashing Black Permanent 850011740224
  1. Ensure substrate is clean, dry, and free of dust, oil, or loose material.
  2. Cut tape to the required length; tape can be hand-torn straight without a knife.
  3. Peel the release liner and position the tape over the joint, seam, or flashing area.
  4. Press firmly along the full length, using a J-roller or hand pressure to fully wet out the adhesive.
  5. For overlapping seams, lap upper pieces over lower pieces shingle-style to shed water.
  6. Apply between -40°F and +176°F; bond strength continues to build for 24 hours after application.
Black — 2" x 65' (50mm x 20m) — Acrylic/Flashing — 3040BK-GT-2-65
Part No. 3040BK-GT-2-65
UPC 850011740231
Size 2" x 65' (50mm x 20m)
Type Acrylic/Flashing
Color Black
Packaged Weight 0.50 lbs
Package Dimensions 5in x 5in x 2.25in
Commodity Code 3919.10.2055
Country of Origin Japan
Black — 4" x 65' (100mm x 20m) — Acrylic/Flashing — 3040BK-GT-4-65
Part No. 3040BK-GT-4-65
UPC 850011740248
Size 4" x 65' (100mm x 20m)
Type Acrylic/Flashing
Color Black
Packaged Weight 1.55 lbs
Package Dimensions 5in x 5in x 4.25in
Commodity Code 3919.10.2055
Country of Origin Japan
Black — 6" x 65' (150mm x 20m) — Acrylic/Flashing — 3040BK-GT-6-65
Part No. 3040BK-GT-6-65
UPC 850011740255
Size 6" x 65' (150mm x 20m)
Type Acrylic/Flashing
Color Black
Packaged Weight 2.30 lbs
Package Dimensions 5in x 5in x 6.25in
Commodity Code 3919.10.2055
Country of Origin Japan
Black — 9" x 65' (225mm x 20m) — Acrylic/Flashing — 3040BK-GT-9-65
Part No. 3040BK-GT-9-65
UPC 850011740262
Size 9" x 65' (225mm x 20m)
Type Acrylic/Flashing
Color Black
Packaged Weight 3.25 lbs
Package Dimensions 5in x 5in x 9.25in
Commodity Code 3919.10.2055
Country of Origin Japan
Black — 12" x 65' (300mm x 20m) — Acrylic/Flashing — 3040BK-GT-12-65
Part No. 3040BK-GT-12-65
UPC 850011740224
Size 12" x 65' (300mm x 20m)
Type Acrylic/Flashing
Color Black
Packaged Weight 4.25 lbs
Package Dimensions 5in x 5in x 12.25in
Commodity Code 3919.10.2055
Country of Origin Japan
Property Detail
Product Family Nichigo G-Tape™ 3040 Series
Tape Type High-Adhesion Acrylic Flashing Tape
Color Black
Bond Type Permanent Acrylic
Length per Roll 65 ft (20 m)
Service Temperature -40°F to +176°F (-40°C to +80°C)
Certification AAMA 7-11 Level 3 Class A
Primer Required No
UV Resistance High
Waterproof Yes
Commodity Code 3919.10.2055
Country of Origin Japan

No frequently-asked questions are currently published for this product. Contact us at e-commerce@dynamicstonetools.com.

No product-specific videos are currently available from the manufacturer or DST.

⚠ WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov. Always wear appropriate PPE.

Özellikler

Size 2", 4", 6", 9", 12"