VWFAXW Series Window Sealing Tape is a high-performance butyl flashing tape designed for sealing the exterior perimeter of windows and doors within the building envelope. It helps protect rough openings from water intrusion and air leakage, creating a continuous and durable weather barrier around critical window and door details.
With strong waterproofing, airtightness, and excellent conformability, VWFAXW is suitable for North American window flashing applications where reliable sealing around complex gaps, corners, and frame transitions is required.
| Product Series | VWFAXW Series |
| Product Type | Window sealing / flashing tape |
| Material | Butyl |
| Typical Application Style | North American window flashing |
| Primary Function | Waterproofing, airtightness, and rough opening protection |
| Model | Specification | Package |
|---|---|---|
| VWFAXW-10023 | 0.10 m × 23 m | 6 rolls / ctn |
| VWFAXW-15023 | 0.15 m × 23 m | 4 rolls / ctn |
| VWFAXW-22523 | 0.225 m × 23 m | 3 rolls / ctn |
| VWFAXW-30023 | 0.30 m × 23 m | 2 rolls / ctn |
Helps prevent water intrusion around windows and doors
Improves airtightness at rough openings and frame transitions
Conformable butyl adhesive for complex gaps and detailing
Suitable for North American window flashing applications
Supports continuity between flashing details and the WRB / weather barrier layer
| Test Item | Standard / Method | Condition / Requirement | Test Result |
|---|---|---|---|
| Material | - | - | Butyl |
| Tensile Stress / Strength | AAMA 711-20 / ASTM D412 | - | MD: 16,107 kPa; CD: 13,294 kPa |
| Tensile Strength of Backing / Membrane | AAMA 711-20 / ASTM D5034 | - | MD: 6.7 N/mm; CD: 5.5 N/mm |
| Water Penetration Around Fasteners | AAMA 711-20, Section 5.2 | - | No water leakage observed; water column change < 3 mm |
| Peel Adhesion to OSB | AAMA 711-20 / ASTM D3330, Method F | - | 0.70 N/mm |
| Peel Adhesion to Aluminum Sheet | AAMA 711-20 / ASTM D3330, Method F | - | 0.78 N/mm |
| UV Accelerated Aging | AAMA 711-20 / ASTM G154 | 336 hours UV exposure | 0.22 N/mm |
| Thermal Cycling | AAMA 711-20, Section 5.6 | 10 cycles from 50°C to -40°C | 0.65 N/mm |
| Cold Temperature Pliability | AAMA 711-20 / ASTM C765 | -18°C | No cracking or loss of adhesion |
| Water Immersion Adhesion | AAMA 711-20, Section 5.8 | 7 days water immersion | 0.74 N/mm; no visible changes |
