GCA®
High performance tape (NFRC Class A)
GCA® USES
GCA® is a high performance butyl tape suitable
for use in steel and aluminium roofing systems.
- External Metal Sheeting – sealing end and side laps in steel and aluminium
- Roofing systems
- Metal Liner Sheeting – sealing end laps
- Sealing rooflights
- Sealing metal flashings
- Ridge and eaves sealing in combination with foam fillers
- Sealing penetrations to roof and wall cladding
GCA® DESCRIPTION
- 25 year warranty (UK & Ireland only)
- Outstanding service life
- High tack product, providing excellent adhesion
- Excellent track record of proven performance
- Strong, flexible and designed specifically to accommodate movement
- Provides a long-life, airtight seal to help buildings comply with Building Regulations
- NFRC Technical Bulletin 36 Class A Rated – 3rd Party Accreditation
Performance
| Unit | Nominal Value | Test Method | |
| Dynamic Tensile Adhesion | N/cm2 | 30 | H5 |
| Dynamic Shear Adhesion | N/cm2 | 12 | H15 |
| 90° Peel Adhesion | N/cm | 7 | H48 |
| 180° Peel Adhesion | N/cm | 14 | H41 |
| Specific Gravity | g/cm3 | 1.6 | H6 |
| Moisture Vapour Transmission Rate | g/m2/24hr/mm | 0.15 | ISO9932 / BS ISO 15106 |
| Service Temperature Range | °C | -40 to +110 |
Premium Quality Sealants
Our skilled sister company, Hodgson Sealants manufacture a wealth of premium industry-leading adhesives, sealants and tapes.
GCA®
