How to Use Fuses and Mortar Tubes Safely

Title: How to Use Fuses and Mortar Tubes Safely
Author: Elevated Fireworks
Tags: Firework Safety, How-To, Mortar Tubes, Fuse Tips
When it comes to building a custom fireworks display, nothing beats the power and flexibility of mortar tubes and fuses. But with great firepower comes great responsibility. At Elevated Fireworks, your safety is our #1 priority—so we’ve put together this beginner-friendly guide to using mortar tubes and fuses the right way.
🧨 What Are Mortar Tubes?
Mortar tubes are sturdy cylinders (often made from fiberglass or HDPE) designed to launch aerial shells into the sky. They're essential for shooting pre-loaded shells or custom-fused shows.
Key Features:
- Designed to handle the explosive lift charge of aerial shells
- Must be used on a flat, stable surface or rack
- Can be reused if undamaged (fiberglass or HDPE only)
🚫 Never use PVC as a mortar tube—it can shatter dangerously on impact.
🔥 What Are Firework Fuses?
Fuses are used to time and link your fireworks together for a coordinated display. There are several types:
- Quick Fuse – Burns fast (in seconds)
- Visco Fuse (Standard) – Burns at ~1 inch per second
- Slow Fuse / Safety Fuse – Great for spacing out effects
These fuses help you chain multiple fireworks together safely and creatively.
🔧 How to Use Mortar Tubes Safely
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Use the right size tube for your shell (e.g., 1.75" shell = 1.91" ID tube)
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Inspect the tube for cracks or damage before each use
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Secure the tube in a solid wooden rack or bury it halfway in sand/dirt
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Never lean over the tube when lighting
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Always have water, sand, or a fire extinguisher nearby
💡 Pro Tip: Use a launch angle of 10–15° away from spectators, never toward them.
🔗 How to Fuse Shells Together
Want to build a mini show from multiple shells? Here’s how:
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Cut fuse pieces to your desired timing intervals
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Use tape or zip ties to attach the fuses to shell leaders or existing fuses
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Protect the joints with aluminum foil or waterproof fuse covers
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Test burn a fuse section to estimate timing before showtime
⚠️ Never rush fuse work—improper timing is a top cause of accidents.
👷♂️ Fuse + Tube Safety Tips
- Only adults should handle mortar tubes and fusing
- Always wear safety glasses and gloves
- Label each tube or shell if you're coordinating timing
- Keep spectators at least 150 feet away for 1.75" shells and above
🎆 Want to Go Bigger?
Visit Elevated Fireworks for quality fiberglass tubes, bulk fuse, and expert advice. We’ll help you design a custom show that’s safe, exciting, and easy to manage.
Have questions about fuse types or how to build a rack?
Stop by our store or message us—our team is here to help!