ASTM A424 Type 1 vitreous enameling steel

Tension-leveled steel manufactured specifically for porcelain enameling applications.

• Steel includes controlled copper and aluminum additions (≤ .002)
• Engineered for proper enamel adhesion and thermal compatibility
• Documentation available upon request

This substrate is selected to ensure long-term bond integrity and dimensional stability.

Porcelain enamel consists of finely milled glass fused to steel at high temperature.

• Full ground coat applied to all surfaces (face, edges, flanges, and back)
• Minimum one additional fired cover coat on the face
• Additional backside cover coat for corrosion protection
• Total enamel thickness: 0.004” – 0.020”
• Fired at temperatures exceeding 1400°F
• Visual quality control against approved control samples

The firing process creates a chemical and mechanical bond between glass and steel.

Full-color porcelain enamel graphics are applied with precision and repeatability.

• Line art / spot color output: minimum 1200 DPI
• Four-color process: 150 LPI minimum (up to 300 LPI upon request)
• Full bleed coverage to panel edge
• PMS, Matthews, and Tokyo Inks supported
• Color match tolerance within 2 NBS units

In-house color lab ensures controlled and repeatable color matching across project phases.

Manufacturing tolerances are engineered for architectural installation.

Flatness (≤ 8 sq ft panels)
• Convex: ≤ .188”
• Concave: ≤ .094”

Squareness
• ≤ .063” under 8 sq ft
• ≤ .094” over 8 sq ft

Final tolerances subject to panel size and configuration.

Porcelain enamel creates a hardened, glass-like surface engineered for durability.

• Hardness: 4–5.5 Mohs (comparable to plate glass)
• Compressive strength: approx. 20,000 psi
• Abrasion resistance exceeds organic coatings (ASTM C448 compliant)
• True chemical + mechanical bond to substrate
• Coefficient of expansion engineered to maintain enamel in compression

Surface integrity is maintained through long-term environmental exposure.

Porcelain enamel is inherently stable and non-photosensitive.

• UV stable; resistant to long-term weathering
• Salt spray resistant (ASTM B117)
• Class A acid resistance available (except hydrofluoric acid)
• Alkali resistant up to pH 12 at 212°F
• Resistant to organic solvents
• Resistant to boiling water and moisture exposure
• Non-combustible surface

Suitable for high-exposure, high-cleaning environments.

Porcelain enamel offers a range of finish characteristics.

• Gloss range: matte (<10) to high gloss (85+)
• Light reflectance values ≥ 75% typical
• White reflector finishes ≥ 80%
• Smooth fire-polished finish
• Matte, pebbled, stippled, or textured finishes available

Finish selection may influence reflectivity and visual appearance.

Porcelain enamel on steel panels offer structural versatility.

• Panels up to 10 feet in length
• Curved and formed panel fabrication available
• Heavy-gauge steel substrate options
• Flanged panel margins: 3/16” standard
• Frame overlap: 3/4” standard

Custom fabrication and attachment details available per project.

Graphic tile delivers the same porcelain enamel surface in modular format.

• Modular tile sizing
• Custom waterjet-cut shapes
• Full-color porcelain enamel graphics
• Compatible with standard tile-setting systems
• Suitable for murals and public art installations
• 25-year fade-free warranty

Designed for integration into walls, plazas, and architectural surfaces.

Mounting systems engineered to match panel longevity.

• Backers with integrated mounting details
• Concealed and exposed frame systems
• Freestanding interpretive systems (including NPS-style frames)
• Steel, aluminum, stainless, and Corten options
• Powder coat, anodized, brushed, or blasted finishes
• Corrosion-resistant materials

Structural systems designed in tandem with panel fabrication.