Devcon Express Epoxy Steel Liquid is a two-part epoxy system designed for gunsmiths and serious shooters who need reliable metal bonding and repair capabilities. Unlike putty formulations, the liquid version flows easily into tight spaces, making it ideal for rifle bedding, filling voids and stress cracks, and creating custom fixtures or molds without struggling to force material into confined areas. It's equally at home repairing non-critical metal components, bonding wood-to-metal interfaces (like bedding work), or securing metal-to-metal assemblies where maximum strength is the requirement.
The working window and cure schedule make it practical for the shop: you can machine or shape it after just 4 hours, and it reaches full hardness in 16 hours—or accelerate the process with heat if the timeline demands it. Devcon Express Epoxy Steel Liquid resists chemicals and acids, so your repairs won't degrade if exposed to solvents, oils, or the cleaning agents that are routine in firearms work. It meets military specification MMM-A-1754, the same standard applied to aerospace and precision applications, which speaks to the bonding strength and consistency you can expect.
This is the tool for jobs where a quick-set two-part epoxy with real holding power beats welding, soldering, or mechanical fasteners. Whether you're bedding a precision rifle, filling machining marks, or fabricating a custom jig, Devcon Express Epoxy Steel Liquid delivers the bond strength and ease of application that gunsmiths have relied on for decades.
Key Features
- Liquid formula flows into tight spaces without forcing—ideal for complex bedding jobs and void filling
- Machinable in 4 hours; fully cured in 16 hours (or faster with heat application)
- High chemical and acid resistance—stands up to solvents and gun-cleaning compounds
- Two-part system with maximum-strength bonding for wood-to-metal and metal-to-metal applications
- Meets military specification MMM-A-1754 for industrial-grade reliability
Specifications
| Product Type | Two-Part Epoxy (Liquid) |
| Primary Material | Steel |
| Machinability | After 4 hours |
| Full Cure Time | 16 hours (or reduced with heat) |
| Military Specification | MMM-A-1754 |
| Chemical Resistance | Highly resistant to chemicals and acids |
Frequently Asked Questions
Can I use Devcon Express Epoxy Steel Liquid for rifle bedding?
Yes. The liquid formula is specifically suited to bedding work because it flows into voids, cracks, and tight spaces without requiring heavy hand pressure to seat. It develops maximum bonding strength and is machinable after 4 hours, giving you time to shape it to your receiver or stock geometry.
What's the difference between the liquid and putty versions?
The liquid flows freely into confined areas and is easier to use for mold-making, fixture creation, and applications requiring tight penetration. The putty holds its shape better for building up area and is easier to handle by hand. Choose liquid when access and flow into tight spaces matter most.
How long do I have to wait before I can machine or shape it?
Devcon Express Epoxy Steel Liquid becomes machinable after 4 hours at room temperature. Full cure takes 16 hours. You can reduce cure time by applying heat per the manufacturer's instructions if your timeline is tight.
Is this product suitable for non-critical metal repairs on firearms?
Yes. It is rated for repair of non-critical metal components and resists chemicals and acids, making it suitable for shop use around gun-cleaning solvents and oils.

