How to Mount Acrylic to Steel Using Rivets (Step-by-Step Metal Art Guide)
Creating clean, professional metal wall art that combines acrylic and steel requires more than just good design—it demands the right fabrication techniques. In this guide, I’ll walk you through the final assembly process of mounting a riveted acrylic panel onto a spray-painted steel back panel.
This step-by-step breakdown covers everything from alignment and support setup to rivet installation and safe adhesive removal from plexiglass.
Final Assembly: Mounting Acrylic to a Steel Back Panel
After successfully riveting the acrylic sheet to a steel frame in the previous step, the next phase is attaching that assembly to a finished steel wall panel.
The steel back panel should already be:
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Spray painted and fully cured
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Pre-drilled with aligned holes
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Matched precisely to the acrylic support structure
Proper alignment is critical here. Pre-drilled holes ensure that the acrylic panel lines up perfectly with the steel tubing underneath, reducing stress during riveting.
Supporting the Acrylic Panel During Riveting
Acrylic (plexiglass) is rigid but brittle, which means improper support during fastening can lead to cracking.
To solve this, a temporary support bar made from rectangular steel tubing is used:
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Positioned underneath the acrylic panel
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Holds the panel flush against the steel surface
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Prevents flexing while rivets are being set
For positioning, double-sided tape can be applied to the support bar—but this comes with a tradeoff (more on that later).
💡 Pro Tip: In tight or delicate setups, painter’s tape is often a better alternative since it leaves less residue.
Masking and Surface Protection
Before applying any coatings or proceeding with final assembly, masking is essential.
Mask off the acrylic surface so only the exposed steel areas are treated. This is especially important when applying:
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Satin clear coat
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Protective finishes
Masking prevents overspray and keeps the acrylic crystal clear and scratch-free.
Setting the Rivets (Including Slow Motion Insight)
Once everything is aligned and supported:
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Pre-insert the rivets into the aligned holes
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Flip the assembly if needed for access
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Use a rivet gun to set each rivet securely
For this project:
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1/8" blind rivets were used
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Holes were drilled to exact size for tight steel-to-steel fastening
Unlike acrylic drilling (which requires oversized holes for expansion), steel-to-steel riveting benefits from precise hole sizing for maximum strength.
The close-up and slow-motion shots in the video clearly show how the rivet deforms and clamps the materials together—this is especially useful if you're new to riveting.
Removing Adhesive Residue from Acrylic (Important!)
After removing the temporary support bar, you may be left with adhesive residue from the double-sided tape.
Start by:
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Rolling off excess adhesive with your fingers
For remaining residue, use only acrylic-safe solvents:
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Naphtha
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Mineral spirits
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Alcohol
⚠️ Avoid harsh solvents like acetone or lacquer thinner, as they will damage or haze plexiglass.
This step is crucial for maintaining a clean, professional finish on your final piece.
Key Lessons and Best Practices
Here’s a quick recap of the most important takeaways:
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Use 1/8" rivets with exact hole sizing for steel-to-steel connections
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Always support acrylic panels during riveting to prevent cracking
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Consider painter’s tape instead of double-sided tape to reduce cleanup
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Only use safe solvents (naphtha, mineral spirits, alcohol) on acrylic
Mask thoroughly to protect surfaces during finishing
Final Result: Clean, Industrial Metal Wall Art
Once assembled and cleaned, the final piece showcases a strong, modern combination of steel and acrylic. The riveted construction not only provides durability but also adds to the industrial aesthetic.
This method is ideal for:
Wall-mounted metal artwork
Mixed-material fabrication projects
Custom signage or decorative panels
Want More Metal & Acrylic Projects?
If you’re into metalworking, fabrication techniques, or creative material combinations, this is just one project in a larger series.
Let me know what you’re working on—whether it’s steel, acrylic, or something totally different.



