BROWNELLS - Aluma-Hyde II, Matte Coyote Brown, 12 Oz Aerosol

Brownells Aluma-Hyde II is a durable, epoxy-based aerosol firearm finish developed to resist bore cleaners, solvents, cleaning chemicals, and everyday wear. Formulated with a hard-curing epoxy base and high-density pigments, it provides a protective, abrasion-resistant coating for properly prepared aluminum, steel, alloys, and synthetic surfaces.

Unlike conventional finishes that can be damaged by aggressive cleaning chemicals, Aluma-Hyde II offers increased chemical resistance after fully curing. It is resistant to many common bore cleaners and solvents, although particularly aggressive copper-removing solvents may affect the finish.

Available in a variety of colors, Aluma-Hyde II can be used to refinish firearm components, synthetic stocks, and other compatible surfaces. No primer is required on properly prepared bare metal or anodized surfaces.

Aluma-Hyde II Features & Specifications

• Hard-curing epoxy-based aerosol finish
• Resistant to common bore cleaners and solvents after curing
• Durable, abrasion-resistant protective coating
• Adheres to properly prepared aluminum, steel, alloys, and plastics
• Suitable for compatible synthetic stocks and fiberglass surfaces
• No primer required on properly prepared bare metal or anodized surfaces
• Available in multiple colors
• 12 oz. (340 g) aerosol can
• Includes a Clean Out Nozzle for clearing the pickup tube

Aluma-Hyde II Colors & Finish Examples

Compare Aluma-Hyde II colors applied to actual magazines. The examples below show how different finishes appear on the same type of surface.

View more Aluma-Hyde II colors and finished project photos in our product spotlight.

How to Apply Aluma-Hyde II

Surface preparation, application temperature, and curing all affect the finished coating. Follow the instructions below and consult the product label and safety information before use.

Step 1: Prepare the Surface

Surfaces must be completely dry and free of oil, wax, dirt, loose paint, and other contaminants. No primer is required on properly prepared bare metal or anodized surfaces.

Clean previously painted surfaces with a suitable cleaner or degreaser. If abrasive blasting, ensure the blasting media is free of oil and silicone. Always test a small area for color compatibility and adhesion.

Preparation varies by material:

• Unpainted Aluminum: Abrasive blast to achieve the desired surface texture.
• Unpainted Steel: Remove rust by sanding or abrasive blasting.
• Fiberglass: Sand lightly, then wash with soap and water or a quality cleaner/degreaser.
• Wood: Seal or fill the surface before application. Aluma-Hyde II can be applied over polyurethane and varnish finishes, but not over linseed oil or tung oil finishes.

Watch our Aluma-Hyde II surface preparation video for a demonstration of proper preparation techniques.

Step 2: Prepare the Aerosol Can

For best results, apply Aluma-Hyde II at temperatures between 70°F and 90°F. Do not apply below 65°F.

Shake the can vigorously until the mixing ball rattles, then continue shaking for an additional two minutes to ensure consistent color and texture.

Use the included Clean Out Nozzle before each use. Remove the standard spray nozzle and install the Clean Out Nozzle. Point the can in a safe direction and depress the valve to clear accumulated paint or residue from the pickup tube.

Once the discharge is clear and consistent, remove the Clean Out Nozzle and replace the standard spray nozzle before applying the finish. The Clean Out Nozzle is not intended for finish spraying.

Step 3: Apply Aluma-Hyde II

Hold the aerosol can approximately 12 inches from the prepared surface and fully depress the spray valve. Shake the can periodically during application to maintain consistent color and texture.

If additional coats are required, apply them within the initial 30-minute recoating window. After that window has passed, allow the coating to cure for 10 to 14 days before applying another coat.

Watch our Aluma-Hyde II application video for additional spraying techniques and application tips.

Step 4: Allow the Finish to Cure

Allow the coating to cure fully before putting the finished part into service. Drying and curing times vary depending on coating thickness, temperature, and humidity.

• Touch Dry: Approximately 10 to 15 minutes.
• Handling: Wait at least 24 hours before extensive handling.
• Recoating: Apply additional coats within 30 minutes, or allow 10 to 14 days of curing before recoating.
• Air Curing: Circulating warm air up to 90°F or placing the part in direct sunlight can help reduce curing time.
• Accelerated Curing: Existing product instructions specify baking the coated part for 3.5 hours at 195°F. This method is appropriate only for heat-tolerant components and must follow applicable product safety instructions. Allow the part to cool before recoating.

Clean Out Nozzles & Maintenance

Each can of Aluma-Hyde II includes a Clean Out Nozzle designed to clear partially hardened paint from the pickup tube and help prevent clogs, sputtering, and inconsistent spray patterns.

Additional Clean Out Nozzles are available separately:

• Single Clean Out Nozzle: Item #430107431
• 12-Pack Clean Out Nozzles: Item #084179004

Clean Out Nozzles are for clearing the pickup tube only and are not intended for finish spraying.

Aluma-Hyde II Application Guides & Videos

Brownells Gun Tech Caleb Savant demonstrates surface preparation, application, camouflage patterns, and other finishing techniques in our instructional series.

Watch the complete How to Paint Your Firearm video series