Description
Arbo GZ Strip – Preformed Butyl Sealant
Arbo GZ Strip is a high-performance butyl tape designed for glazing, roofing and cladding applications where a reliable, watertight seal is essential.
This preformed butyl sealant strip delivers instant adhesion and long-term flexibility, making it ideal for compression joints in construction, façade systems and external building envelopes.
Engineered to deform under pressure, Arbo GZ Strip fills joint irregularities to create a durable, watertight seal that resists moisture ingress even in exposed environments. Its strong surface tack and excellent recovery ensure consistent performance over time without cracking or shrinking.
Suitable for use in timber and metal glazing frames, guttering systems and cladding joints, it provides a clean, discreet finish and is available in both black and white to suit a range of applications.
Butyl Tape Applications
This butyl tape is widely used for:
- Glazing seals in timber and aluminium frames
- Roofing lap joints and flashing
- Cladding panel sealing
- Guttering and drainage systems
Its ability to remain flexible and waterproof without curing makes it ideal for long-term sealing in construction and glazing applications.
✅ Key Features & Benefits
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Preformed flat butyl sealant tape
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Excellent compression sealing performance
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Strong initial tack for secure positioning
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Good recovery for long-term sealing
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Ideal for external glazing & façade joints
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Excellent adhesion to porous & non-porous surfaces (when properly prepared)
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Clean, professional finish
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Available in black & white
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Long-lasting resistance to moisture ingress
🏗 Typical Applications
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External glazing systems
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Timber & metal window frames
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Cladding compression joints
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Roofing lap joints
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Guttering and drainage joints
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Façade panel sealing
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Weatherproof perimeter sealing
📏 Choosing the Right Arbo GZ Tape Size
For the best sealing performance, select a tape that is:
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Slightly wider than the joint
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Thick enough to compress by approximately 20–30% when installed
✅ Recommended Sizing Guide
| Joint / Gap Width | Recommended Tape Width | Recommended Thickness |
|---|---|---|
| 3–5 mm | 10–12 mm | 3 mm |
| 5–8 mm | 15 mm | 3 mm |
| 8–12 mm | 20 mm | 4–5 mm |
| 12–18 mm | 25 mm | 5–6 mm |
Following this guide ensures:
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Correct compression
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Maximum waterproofing
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Long-term seal integrity
✅ Why Choose Arbo GZ Strip?
Arbo GZ Strip offers a fast, clean and highly reliable sealing solution where traditional liquid sealants are impractical. Its preformed format, excellent tack, and long-term elasticity make it especially suitable for controlled compression joints in external building envelopes.
- Instant watertight seal (no curing time)
- Clean, mess-free installation
- Excellent adhesion to metal, glass and timber
- Ideal for glazing, roofing and cladding
✅ Butyl vs Polyurethane vs Silicone – Which Sealant Should You Use?
🔍 Which Sealant Is Right for Your Application?
| Feature | Butyl Sealant (Arbo GZ Strip) | Polyurethane Sealant | Silicone Sealant |
|---|---|---|---|
| Form | ✅ Preformed strip | Liquid | Liquid |
| Waterproofing | ✅ Excellent | ✅ Excellent | ✅ Excellent |
| Flexibility | ✅ Good | ✅ Excellent | ✅ Excellent |
| Paintable | ❌ No | ✅ Yes | ❌ No |
| Compression Joint Sealing | ✅ Ideal | ⚠️ Limited | ⚠️ Limited |
| Glazing & Guttering | ✅ Excellent | ⚠️ Moderate | ✅ Good |
| Clean Installation | ✅ Very Clean | ⚠️ Tooling required | ⚠️ Tooling required |
| Weather Resistance | ✅ Very Good | ✅ Excellent | ✅ Excellent |
| Movement Accommodation | ⚠️ Limited to compression | ✅ High | ✅ High |
✅ Choose Butyl Sealant (Arbo GZ Strip) When You Need:
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A preformed compression seal
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Clean, mess-free installation
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External glazing & guttering sealing
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Reliable waterproofing without curing time
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Timber or metal frame glazing
✅ Choose Polyurethane Sealant When You Need:
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Paintable joints
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High movement accommodation
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Expansion joints in concrete & masonry
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Structural joint sealing
✅ Choose Silicone Sealant When You Need:
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Maximum flexibility
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Sanitary, glazing & general weatherproof sealing
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Non-paintable decorative finishes
For high-movement joints, see our polyurethane sealants
❓ FAQs
Is butyl tape waterproof?
Yes — butyl tape provides a long-lasting waterproof seal and is commonly used in roofing, glazing and cladding.
Does butyl tape harden?
No — it remains flexible and non-curing, allowing it to maintain a seal over time.
Can butyl tape be used outdoors?
Yes — it performs well externally, though exposure to UV over long periods may affect surface appearance.





