Explosion Hazard Sign – 3D Printable Warning Plate (Scalable & Multicolor)

Add a bold and unmistakable warning to any environment with this 3D-printable Explosion Hazard sign. Featuring the classic bursting object with flying debris symbol within a high-visibility triangle, this sign is ideal for industrial sites, laboratories, makerspaces, escape rooms, Halloween decor, or themed setups.

Design Features

• Universal Warning Symbol

•  Features the internationally recognized explosion hazard icon — a detonating charge with shards flying outward — clearly framed inside a thick triangular border.

• Multicolor Compatible

•  Designed for multi-material printers (AMS/MMU) or manual filament swaps to print in distinct yellow and black sections for maximum contrast.

• Scalable Layout

•  Can be resized freely to fit your needs — from small desk signs to large wall-mounted warnings — without losing clarity or proportion.

• Support-Free

•  Optimized for clean printing with no supports required.

Technical Specifications

• File Format: STL, 3MF

• Recommended Size: 120–200 mm per side (adjustable)

• Printing Layer Height: 0.2 mm

• Supports Needed: None

• Infill: 15–100 % depending on use case

• Mounting: Flat back, easy to attach using adhesive tape, magnets, or screws

Printing Tips

• Materials:

• PLA for indoor use

• PETG or ASA for outdoor/high-durability

• Colors:

• Yellow for the triangle background

• Black for the explosion symbol and border

• Multicolor:

•  Works great with AMS or manual swaps at the transitions between border and background, and again for the symbol.

Ideal For

• Industrial & Laboratory Settings: Clearly mark areas or equipment at risk of explosion

• Themed Events: Add realism to escape rooms, movie sets, or Halloween displays

• Decor & Cosplay: Dramatic addition for fans of industrial, sci-fi, or post-apocalyptic aesthetics

Print your explosion hazard sign today and make sure everyone sees—and respects—the warning!