Acid-Etched Glass Manufacturer | Oiled Sand Privacy Glass 4-8mm | MONTAG

Acid-etched glass — commonly known as oiled sand glass or satin-etched glass — is a premium decorative glass product manufactured through a specialized acid-etching process on ordinary glass. Its surface features a refined, smooth texture reminiscent of oil-coated sand, delivering a coveted "light-transmitting but non-see-through" effect. Unlike ordinary frosted or patterned glass, it seamlessly integrates three core advantages: reliable privacy protection, outstanding anti-slip performance, and sophisticated high-end decorative appeal — making it the ideal choice for spaces requiring both privacy and style, such as bathroom renovations, interior partitions, and premium furniture detailing.

MONTAG supplies oiled sand glass in thicknesses from 4mm to 8mm, with standard and custom sizes available. Surface roughness precisely controlled at Ra 0.8–1.2μm, light transmittance ≥75% (4mm), and dry anti-slip coefficient ≥0.6. Serving luxury hotel developers, premium residential contractors, interior design studios, and custom furniture manufacturers worldwide.

Certified to applicable international standards — [view certificates](/about-us#certifications)

What Is Oiled Sand Glass?

Oiled sand glass stands out in the decorative glass market through its refined craftsmanship and multi-dimensional performance, rooted in a precise and specialized manufacturing process. Production begins with high-quality ordinary float glass as the substrate, which undergoes strict quality inspection to ensure flatness and defect-free surfaces. The glass then goes through a two-step core process: chemical solution spraying and acid etching.

First, a specially formulated etching solution is uniformly sprayed onto the glass surface through a precision nozzle system. The solution reacts with the silica structure on the glass surface, selectively corroding it to form microscopically uneven textures. After the etching reaction reaches its predetermined duration, the glass is immediately rinsed with deionized water to terminate the reaction, followed by drying and polishing. This sophisticated process produces a delicate, smooth oil-sand texture on the glass surface with strong, uniform luster — avoiding the coarse, dry feel of ordinary frosted glass and creating a hazy yet luxurious atmosphere in any space — the hallmark of quality satin glass.

For B2B clients with large-scale order requirements, our automated production line ensures consistent texture and luster across every glass sheet, meeting the strict quality standards of high-end projects.

Key characteristics of oiled sand glass:

• "Light-transmitting but non-see-through" — soft diffused light passes through while completely blurring objects behind the glass
• Surface roughness Ra 0.8–1.2μm — optimized for tactile comfort and anti-slip performance
• Dry anti-slip coefficient ≥0.6 — significantly higher than ordinary smooth glass, suitable for wet-area applications
• Light transmittance ≥75% (4mm) — maintains bright, airy interiors without sacrificing privacy
• Acid-etched surface — resists daily stain erosion and maintains texture integrity over time
• Premium oil-sand texture — smoother and more lustrous than sandblasted frosted glass

Performance Specifications

These specifications translate directly to project outcomes: the precise Ra 0.8–1.2μm surface roughness ensures consistent tactile quality and anti-slip performance across large orders, while ≥75% light transmittance means privacy is achieved without darkening interior spaces — a critical advantage for luxury hotel bathrooms and high-end residential applications where natural light and privacy must coexist. For B2B clients, uniform texture consistency across batches reduces on-site rejection rates and ensures visual coherence across multi-room installations.

Thickness Guide & Applications

This thickness range covers most residential and commercial privacy applications. For projects requiring enhanced safety, oiled sand glass can be produced from tempered glass substrate — see our tempered glass product line for base material specifications. For applications requiring both privacy and sound insulation, consider combining with laminated glass construction.

Color Options & Design Versatility

Oiled sand glass offers a rich selection of colors to complement diverse design styles and spatial themes:

• Classic Gray Oiled Sand: Versatile neutral tone suitable for modern minimalist and industrial-style interiors. Pairs naturally with metal, concrete, and wood finishes.
• European Tea-Colored Oiled Sand: Warm, elegant tint ideal for classical European and transitional interiors. Adds warmth to residential and hospitality spaces.
• Black Oiled Sand: Bold, dramatic option for contemporary luxury designs. Creates strong visual contrast in high-end retail and hospitality settings.
• Ultra-Clear Oiled Sand: Uses low-iron substrate (iron content ≤80ppm) that eliminates the subtle green tint of standard glass. The pure, transparent base color makes the oil-sand texture more prominent, with higher light transmittance and a more refined, elegant visual effect — particularly popular in premium decorative projects.

For B2B clients with custom color requirements, our color formulation team can develop exclusive color solutions based on project design specifications, helping clients achieve unique decorative effects that differentiate their projects in the market.

Advantages Over Alternative Privacy Glass

Compared to similar decorative glass products, oiled sand glass demonstrates significant competitive advantages:

• Vs. Sandblasted Frosted Glass: Acid-etched satin glass has a finer, smoother surface texture. It avoids the granular roughness of sandblasted glass, offering a more comfortable touch, higher luster, and a more premium visual quality.
• Vs. Fluted/Reeded Glass (长虹玻璃): Fluted glass relies on linear patterns for privacy, which can occasionally reveal blurred outlines under strong light due to the directional nature of its texture. Oiled sand glass provides more uniform light diffusion, delivering stronger privacy that remains effective even under intense lighting conditions.

For B2B clients, these competitive advantages help elevate project quality and market differentiation — particularly important in luxury hospitality and high-end residential sectors where material selection directly impacts perceived value.

Customization Options

Beyond standard options, we offer:

• Custom color development — exclusive color formulations matched to project design palettes
• Non-standard size cutting — cut-to-size sheets for specific installation dimensions, minimizing on-site trimming
• Ultra-clear substrate option — low-iron glass base (≤80ppm iron content) for maximum texture clarity and light transmittance
• Tempered oiled sand glass — combining privacy texture with safety certification for wet-area and safety-critical applications
• Custom edge processing — polished, beveled, or arrised edges to design specifications
• Bulk production scheduling — priority scheduling for luxury project timelines with strict delivery deadlines

Applications

The applications of oiled sand glass span broadly across residential, commercial, and public spaces:

• Residential — bathroom doors, shower enclosures, dressing room partitions, wardrobe doors, kitchen backsplashes
• Hospitality — luxury hotel bathrooms, restaurant private dining partitions, boutique resort privacy screens
• Commercial — boutique display cases, office conference room glass walls, retail feature walls
• Public facilities — high-end office building restroom partitions, hospital privacy screens, shopping center privacy panels
• Furniture — custom furniture inlays, decorative cabinet fronts, room dividers in premium furniture collections

Project Examples:

Five-star hotel chain — 6mm gray oiled sand glass for 300+ bathroom shower enclosures across 12 properties, uniform texture consistency ensuring visual coherence brand-wide.

Luxury residential villa — ultra-clear oiled sand glass for dressing room partitions and wardrobe doors, custom color-matched to interior design palette across 40+ rooms.

Boutique restaurant — 8mm European tea-colored oiled sand glass for private dining room partitions, combining privacy with warm ambient light diffusion.

For applications requiring safety certification, oiled sand glass can be produced from tempered substrate. For sound insulation needs, consider laminated oiled sand glass construction. See our tempered glass and laminated glass product lines for base material specifications.

B2B Order Information

Maintenance & Care Guidelines

Due to its slightly textured surface, oiled sand glass requires specific care to maintain its appearance:

• Use dedicated glass cleaner and a soft microfiber cloth for daily cleaning — gently wipe to remove fingerprints, water spots, and dust
• Avoid steel wool, scrapers, or abrasive cleaning tools — these will scratch the surface and damage the delicate oil-sand texture
• During installation, protect glass edges to prevent cracking — use neutral sealant only, as acidic or alkaline adhesives can chemically corrode the acid-etched surface
• For wet-area installations (shower enclosures, bathroom doors), regular cleaning prevents mineral deposit buildup in the micro-texture
• For B2B clients, we provide detailed installation and maintenance guidelines, plus on-site technical training to ensure proper product use and care

FAQ

What is the difference between acid-etched oiled sand glass and ordinary frosted glass?

Acid-etched oiled sand glass is produced through a chemical acid-etching process, while ordinary frosted glass is typically made by sandblasting. The result is a satin glass finish that is smoother and more lustrous than sandblasted alternatives. Oiled sand glass has a finer, smoother texture with higher luster — it avoids the granular roughness of sandblasted glass, offering a more comfortable touch and a more premium visual quality. The acid-etched surface is also more durable and resistant to daily stain erosion.

Can oiled sand glass be used for shower enclosures?

Yes. Oiled sand glass is an ideal choice for shower enclosures — its "light-transmitting but non-see-through" effect provides privacy while allowing natural light to enter, and its anti-slip surface (dry coefficient ≥0.6) adds a safety margin in wet environments. For shower enclosures, we recommend 6mm or 8mm thickness, and tempered oiled sand glass substrate for safety compliance.

What colors are available?

Standard colors include classic gray, European tea-colored, black, and ultra-clear (using low-iron substrate). Custom colors can be developed to match your project design palette — our color formulation team works with B2B clients to create exclusive color solutions for luxury projects.

Does the acid-etched texture wear off over time?

No. The acid-etching process permanently modifies the glass surface structure at a chemical level — the texture does not fade or wear off under normal use. However, proper maintenance (using non-abrasive cleaners) is important to prevent surface damage. The texture maintains its privacy and light-diffusion performance for the lifetime of the glass.

What certifications are available?

Our oiled sand glass complies with ISO 9001 and CCC (China) standards. For safety-critical applications, tempered oiled sand glass substrate can meet ANSI Z97.1 (US) and EN 12150 (Europe) requirements. Test reports and certificates are provided with each shipment, suitable for commercial project acceptance.

What is the lead time for custom color orders?

Standard colors (gray, tea-colored, black, ultra-clear) are available with standard production lead times. Custom color development requires additional formulation and sampling time — typically 2–3 weeks for color approval before bulk production. Contact us with your project timeline for a detailed production schedule.

Need a quote for your project?

Send us your design specifications or project requirements — our team responds within 24 hours with pricing, lead time, and technical recommendations.