1mm Flat Deadlock Intumescent Pad – Fire-Rated Protection for ZUKFD Deadlocks
The 1mm Flat Deadlock Intumescent Pad is a premium, essential fire safety upgrade designed specifically for ZUKFD flat deadlocks. Engineered for high-performance fire protection, this pad is ideal for residential, commercial, and public doors. Its slim 1 mm profile allows it to be fitted discreetly behind the deadlock, preserving the door’s aesthetic appeal while providing life-saving protection during a fire emergency.
Constructed from advanced graphite-based intumescent material, the pad reacts automatically when exposed to heat. Once the temperature reaches approximately 180°C, the material expands up to 5–10 times its original thickness, sealing all gaps around the lock cavity. This prevents flames, smoke, and hot gases from spreading, helping the door maintain its FD30 or FD60 fire rating. By acting at the earliest stages of a fire, the pad buys precious extra minutes for occupants to evacuate safely.
One of the key advantages of this pad is its versatility in installation. It can be placed behind logos, stickers, or decorative signage without compromising the door’s visual design. This makes it ideal for branding-heavy commercial spaces, corporate offices, hotels, and schools where safety and aesthetics must coexist. The maintenance-free design ensures long-term protection, meaning once installed, the pad remains effective for the lifetime of the door, reducing the need for costly replacements or ongoing checks.
🔥 How the 1mm Flat Deadlock Intumescent Pad Works
- When exposed to heat around 180°C, the graphite-based intumescent material reacts instantly.
- The pad expands to seal gaps around the deadlock, preventing flames, smoke, and hot gases from passing through.
- Maintains FD30 or FD60 fire door ratings, ensuring regulatory compliance.
- Works in harmony with fire-rated hinges, smoke seals, and door closers to form a complete fire door system, offering unmatched safety.
This process ensures that even the most vulnerable point of a door—the lock cavity—is fully protected, significantly enhancing the door’s overall fire performance.
⚙️ Key Features of 1mm Flat Deadlock Intumescent pad
- Thickness: 1 mm – slim yet highly effective
- Material: Graphite-based intumescent sheet for rapid expansion
- Compatibility: Designed for ZUKFD flat deadlocks
- Fire Rating: Supports FD30 / FD60 fire doors
- Maintenance: Fully maintenance-free
- Installation: Quick, simple, no adhesive required
- Finish: Discreet design, perfect behind logos or signage
- Performance: Expands automatically under heat, ensuring instant fire protection
🛠 Technical Specifications
| Feature | Detail |
| Product Type | Intumescent pad for flat deadlocks |
| Thickness | 1 mm |
| Compatible Locks | ZUKFD flat deadlocks |
| Material | Graphite-based intumescent sheet |
| Fire Rating Support | FD30 / FD60 (with proper door assembly) |
| Installation | Behind deadlock, no adhesive required |
| Usage | Fire doors (residential/commercial) |
| Aesthetics | Fully hidden behind hardware |
🧰 Installation Guide of
- 🔧 Remove the ZUKFD deadlock to access the cavity.
- 🧼 Clean the mortice, ensuring it is free of dust and debris.
- 🧱 Place the 1mm Flat Deadlock Intumescent Pad behind the deadlock.
- 🔩 Reinstall the deadlock and test smooth operation.
- ✅ Done! No adhesives, cutting, or modifications required.
Pro Tip: Its slim 1 mm profile allows installation behind logos, stickers, or signs, preserving your door’s design while providing complete fire protection.
💡 Benefits of Using the 1mm Flat Deadlock Intumescent Pad
- 🧯 Superior Fire Safety: Blocks flames, smoke, and hot gases effectively.
- 🛡️ Invisible Protection: Fully hidden behind the deadlock for a clean finish.
- 🔄 Long-Term Reliability: Durable, maintenance-free design ensures ongoing performance.
- 💰 Cost-Effective Solution: Protects doors and occupants without replacing existing hardware.
- 🏢 Versatile Applications: Ideal for homes, offices, schools, hospitals, hotels, and public buildings.
- 🔧 Quick Installation: Easy to fit, saving time and installation costs.
- 🧠 Regulatory Compliance: Helps doors meet FD30/FD60 fire safety standards.
- 🌟 Aesthetic Preservation: Safe to install behind logos, stickers, and signage, maintaining visual appeal.
🏠 Applications
- Residential Homes: Protects apartment, flat, and house doors.
- Commercial Buildings: Enhances safety in offices, corridors, and storage areas.
- Schools & Hospitals: Maintains compliance in high-occupancy areas.
- Hotels & Hospitality: Keeps corridors and guest rooms safe without affecting aesthetics.
- Retail Spaces: Perfect for branded doors with logos or decorative signage.
- Retrofit Projects: Upgrade older doors with minimal changes and maximum safety.
📊 Comparison with Standard Intumescent Pads
| Feature | Standard Pad | 1mm Flat Deadlock Intumescent Pad |
| Thickness | 0.8–1 mm | 1 mm |
| Fire Expansion | Moderate | Rapid, fills lock gaps |
| Compatibility | Limited | Fits ZUKFD flat deadlocks |
| Installation Ease | Moderate | Quick, no adhesive needed |
| Aesthetics | May be visible | Fully hidden |
| Longevity | Moderate | Lifetime protection |
| Safety Rating | Basic | FD30 / FD60 support |
🔥 Why Professionals Prefer This Pad
- Enhances Fire Door Performance: Reinforces the most vulnerable part of a door—the lock cavity.
- Easy Fit: Saves time for installers without compromising safety.
- Reliable Activation: Expands automatically at high temperatures.
- Cost-Effective Safety Upgrade: Protects property and life without replacing existing hardware.
🏆 Summary / Call to Action
The 1mm Flat Deadlock Intumescent Pad is an essential fire safety solution for any ZUKFD flat deadlock-equipped door. Its slim design, easy installation, and high-performance fire protection make it perfect for residential, commercial, and public spaces. Enhance door safety, maintain aesthetics, and ensure compliance with this reliable, life-saving fire safety upgrade.
Protect doors, preserve visual appeal, and give occupants peace of mind with the 1mm Flat Deadlock Intumescent Pad.












