Bulk Fsk Aluminum Foil Tape

![]() | Bulk Fsk Aluminum Foil Tape
|
Why FSK facing tape is used for sealing insulation vapor barriers?
FSK facing tape is used to seal joints and seams in foil-scrim-kraft insulation systems where vapor resistance and surface integrity are required. By bonding overlapping FSK facings, the tape helps maintain a continuous vapor barrier and supports thermal insulation performance.
In HVAC and mechanical insulation projects, engineers often evaluate adhesion to kraft paper, foil compatibility, and long-term sealing reliability when working with an FSK tape manufacturer for system-level consistency.
Product Overview
Foil scrim kraft insulation tape is produced by laminating aluminum foil, fiberglass scrim, and kraft paper into a composite backing, coated with a pressure-sensitive adhesive—typically acrylic-based. The foil layer provides vapor resistance, the scrim adds reinforcement, and the kraft layer improves handling and bonding.

This construction allows the tape to integrate seamlessly with FSK-faced insulation materials. Manufacturing in a China FSK tape factory focuses on laminate balance, adhesive coat weight control, and unwind stability to support insulation installation standards.
Key Characteristics
- Composite foil-scrim-kraft backing structure
- Strong adhesion to FSK-faced insulation surfaces
- Effective vapor and moisture barrier performance
- Reinforced structure for improved tear resistance
- Stable bonding under temperature variation

These characteristics make FSK tape suitable for insulation sealing rather than general-purpose taping.
Technical Data Sheet (Typical Range)
| Parameter | Specification / Options |
| Product type | FSK (foil scrim kraft) insulation tape |
| Backing material | Aluminum foil + fiberglass scrim + kraft paper |
| Adhesive type | Acrylic pressure-sensitive adhesive |
| Total thickness | Approx. 0.12 – 0.18 mm |
| Standard widths | 50 / 75 / 100 mm |
| Standard lengths | 45 m |
| Reinforcement | Fiberglass scrim |
| Vapor barrier | Excellent |
| Tensile strength | Improved by scrim layer |
| Temperature resistance | Approx. -30 °C to +120 °C |
| Aging resistance | Good |
| Application method | Manual application |
| Storage condition | Cool, dry environment |
| Shelf life | Typically 12 months |
For large construction projects, installers often standardize specifications when ordering bulk FSK tape to improve installation efficiency and quality control.
Typical Application
FSK tape is commonly used in:
- Sealing seams of FSK-faced fiberglass insulation
- HVAC duct wrap and duct board systems
- Mechanical room insulation installations
- Thermal insulation vapor barrier closure
- Commercial and industrial building insulation
In insulation projects, FSK tape for insulation vapor barrier sealing is frequently specified to maintain continuity of the facing system. Contractors and installers typically source materials through a reliable FSK tape supplier to ensure compatibility with insulation products.

How does FSK tape perform in long-term insulation installations?
Once applied over insulation seams, FSK tape maintains adhesion to kraft-facing surfaces while preserving the vapor barrier function of the foil layer. The scrim reinforcement limits tearing during installation and service, even in areas subject to vibration or handling stress.
In duct wrap and pipe insulation systems, FSK tape for HVAC insulation sealing helps reduce moisture intrusion and insulation degradation over time. Long-term project supply is commonly coordinated through an FSK tape wholesaler to support phased construction schedules.
Product Process

FAQ
Is FSK tape compatible with FSK-faced insulation?
Yes. FSK tape is specifically designed to bond with foil-scrim-kraft insulation facings and maintain vapor barrier continuity.
Can FSK tape be used as a vapor barrier?
Yes. When applied correctly, the foil layer provides effective vapor resistance at insulation joints and seams.
Is FSK tape reinforced?
Yes. The fiberglass scrim layer improves tear resistance and mechanical strength compared to plain foil tapes.
Can FSK tape be supplied to project-specific requirements?
Depending on insulation system needs, customized FSK tape such as specific widths, adhesive formulations, or scrim weights may be selected. Global sourcing is commonly based in FSK tape China, supporting HVAC and insulation projects worldwide.

