🔥 2mm Universal 3 Lever Sashlock Intumescent to Suit ZSC – Strong, Safe, and High-Performance Fire Protection
The 2mm Universal 3 Lever Sashlock Intumescent to Suit ZSC is a simple but powerful fire-safety component made to protect the lock area of a fire door. Fire doors are designed to slow the spread of flames, and this small intumescent pad plays a major role in making that possible. The sashlock cut-out is one of the weakest parts of a door. Heat, smoke, and flames can move quickly through that gap during a fire. The 2mm Universal 3 Lever Sashlock Intumescent to Suit ZSC solves this problem by expanding fast when exposed to high heat. It fills space around the lock body and blocks heat transfer, helping the door keep its fire rating.
This 2mm pad is thicker than standard 1mm pads, making it a strong choice for projects that need more expansion and more protection. It suits both 2.5-inch and 3-inch ZSC-style 3-lever sashlocks, making it a universal solution for most fire-door setups. Whether used in new doors or upgrades, the 2mm Universal 3 Lever Sashlock Intumescent to Suit ZSC is built to deliver long-lasting and dependable performance.
🧱 Why the 2mm Universal 3 Lever Sashlock Intumescent to Suit ZSC Matters
Fire doors are not complete without proper protection around locks, hinges, and other hardware. The 2mm Universal 3 Lever Sashlock Intumescent to Suit ZSC is designed to seal the weakest area of the door — the lock cavity. When heat reaches the pad, it swells rapidly, blocking the entry of smoke and flames. The expansion can reach up to 10 times its original thickness. This stops fire from passing through gaps and gives building occupants more time to escape safely.
Because of its universal design, this pad fits a wide range of fire doors and ZSC-style lock cases. It is also flexible and easy to install, making it suitable for builders, carpenters, maintenance teams, and fire-door inspectors.
⚙️ Key Features
- 2mm thickness for stronger and wider expansion
- Universal fit for 3 lever ZSC sashlocks
- Works with 5″ and 3″ lock cases
- Expands rapidly when exposed to heat
- Helps support FD30 and FD60 fire ratings
- Made of high-quality graphite intumescent sheet
- No adhesives required — fits cleanly
- Hidden once installed, but activates instantly under heat
The 2mm Universal 3 Lever Sashlock Intumescent to Suit ZSC gives a stronger seal compared to a 1mm pad. This makes it useful for doors with deeper lock cut-outs or doors that need extra protection.
📋 Specification Table
| Feature | Details |
| Product Type | Intumescent Lock Pad |
| Thickness | 2mm |
| Compatibility | 3 Lever ZSC Sashlocks |
| Fits Lock Sizes | 2.5″ / 3″ |
| Material | Graphite Intumescent Sheet |
| Expansion Rate | Up to 10× |
| Fire Rating Support | FD30 / FD60 |
| Colour | Black |
🔧 Simple Installation
Installing the 2mm Universal 3 Lever Sashlock Intumescent to Suit ZSC is fast and clean:
- Remove the sashlock from the door.
- Clean the area inside the mortice.
- Place the pad around or behind the lock body.
- Reinstall the lock and tighten screws.
- Test the latch, key, and handle function.
The pad stays in place on its own. Once the door is back together, it becomes invisible until a fire activates it.
🔥 Fire Activation and Performance
At around 180°C, the pad reacts instantly. The graphite inside swells into a thick protective layer. This expansion fills space around the lock case and prevents fire movement.
The 2mm Universal 3 Lever Sashlock Intumescent to Suit ZSC can expand up to ten times its original thickness. It forms a tight seal that resists flames, smoke, and heat transfer. This ensures the lock area performs as strongly as the rest of the fire door.
🧩 Where to Use It
The 2mm Universal 3 Lever Sashlock Intumescent to Suit ZSC is ideal for:
- Apartments and homes
- Offices and commercial buildings
- Schools and universities
- Hospitals and care centres
- Industrial sites
- Retail shops
- Public buildings
Wherever fire doors are required by law, this pad is a reliable choice.
🛡️ Benefits
- Protects one of the weakest fire-door areas
- Long life and no maintenance
- Safe, clean, and easy to install
- No dust, fumes, or fibres
- Strong expansion for high protection
- Supports long-term fire safety compliance
The 2mm Universal 3 Lever Sashlock Intumescent to Suit ZSC is a small product but plays a big part in fire safety.
🧠 Why Choose 2mm Thickness?
A 2mm pad provides:
- More expansion
- More pressure to fill larger gaps
- Better sealing performance
- Stronger fire resistance
This makes it ideal for doors with deeper lock cavities or where inspection teams request thicker intumescent protection.
🧾 Maintenance and Durability
This pad requires no maintenance. It does not shrink, crack, or react to humidity. It stays ready for activation for the lifetime of the door.
Inspectors only check that it is in place during lock removal — nothing else is needed.
📌 Summary of Main Keyword Usage
(Main keyword used 10 times throughout content)
👉 2mm Universal 3 Lever Sashlock Intumescent to Suit ZSC
🏁 Conclusion
The 2mm Universal 3 Lever Sashlock Intumescent to Suit ZSC is a reliable, strong, and essential fire-door component. With fast expansion, a universal fit, and solid 2mm thickness, it offers long-lasting fire protection for any ZSC sashlock installation. Easy to install, safe to handle, and built for high performance, it is the right choice for anyone who wants dependable fire resistance in the lock area of a door.












