Skyflame Onyx Black 10 lb Fire Pit Glass for Propane & Natural Gas — Tempered, Mirrored Backing

Skyflame 10-pound Onyx Black fire pit glass is tempered, mirrored-backed decorative glass designed for propane and natural gas fireplaces, fire pits, and outdoor bowls to add heat-resistant shine and long-lasting color.

Give your gas fireplace or outdoor fire feature a polished, modern look with Skyflame fire glass. This 10-lb bag contains high-luster Onyx black tempered glass pieces with a reflective backing that catches flamelight without losing color under high heat. The product replaces lava rock or ceramic logs where a cleaner, contemporary appearance is desired and is formulated to resist thermal stress and discoloration during regular use.

How does Skyflame glass perform around propane and natural gas flames?

The glass is made through a tempering and filtering process that increases resistance to thermal shock and fading. It’s suitable for both indoor gas fireplaces and outdoor fire pits, provided installation follows your appliance manufacturer’s guidelines. The mirrored backing enhances spark and glow while the Onyx finish remains stable under prolonged heat exposure.

• Tempered glass resists cracking from rapid temperature changes
• Compatible with propane and natural gas burners and bowls
• Mirrored backing amplifies flame reflection for brighter appearance
• Engineered to maintain color and luster over time

What size and coverage can I expect from a 10-pound bag?

A single 10-lb bag covers a modest burner area at typical depths used for decorative glass applications. Actual coverage depends on desired depth and burner size; shallow layers give a sleek look while deeper fills provide fuller coverage and heat distribution. Measure your bowl or firebox and plan for multiple bags if you want a dense, ground-to-surface fill.

• 10 lb is ideal for small to medium bowls or accent areas
• Layer depth of 1–2 inches for decorative purposes
• Add additional bags for larger fire pits or denser coverage
• Mix with other colors only if manufacturer allows

How do I install and maintain Skyflame fire glass safely?

Installation is straightforward: remove existing loose media, confirm burner and ports are clear, add a layer of fire-rated sand if recommended, then spread the glass evenly around the burner. Cleaning requires minimal effort—simple rinses with vinegar and water remove soot or residue. Always let the fire cool completely before touching glass and follow appliance safety instructions.

• Clear burner ports before placing glass
• Use fire-rated sand base if your appliance manual recommends
• Clean with vinegar and water; avoid harsh abrasives
• Never add glass to a hot burner; cool completely first

Will the Onyx black color stay vibrant over time?

Skyflame’s processing minimizes discoloration even after repeated heating cycles, so the deep Onyx tone and high-luster finish remain visually consistent. The reflective backing helps hide minor soot and enhances visual depth, making the glass appear darker and more dimensional under flame light. Normal use can produce minimal surface residue that is removable with the recommended cleaning method.

• High-heat resistant finish prevents premature fading
• Mirrored backing preserves shine and depth of color
• Residue is typically removable with vinegar and water
• Designed for long-term decorative performance

Who this is for: Skyflame 10-Pound Onyx Black Fire Pit Glass is aimed at homeowners and designers seeking a modern, low-maintenance upgrade to gas fireplaces, outdoor fire tables, and decorative fire bowls. It’s a good choice for people who want a sleek, reflective finish that endures regular use, for weekend DIY installers comfortable following appliance safety instructions, and for professionals specifying reliable decorative media for residential projects.