Rigid Un-Faced Mineral Wool Board Insulation Factory-Direct Slabs for Buildings & Industry

Engineered for Class A1 non-combustible fire protection, superior sound dampening, and high thermal efficiency, our un-faced mineral wool board insulation (plain mineral wool slabs) provides structural insulation for building envelopes, exterior walls, and high-temperature industrial applications. Manufactured to international standards (ASTM C612 / EN 13162), these rigid basalt fiber mineral wool slabs feature a breathable, porous structure that allows moisture vapor to pass through while maintaining high compressive strength and dimensional stability. As a direct manufacturer and global exporter, we partner with South American MEP contractors, ETICS wall installers, and regional B2B stocking distributors to deliver high-density un-faced mineral wool boards at competitive factory prices.

Key Benefits

• Class A1 Fire Protection: Non-combustible basalt fiber core withstands temperatures up to 650°C (1200°F), stopping flame spread and generating zero smoke toxicity.
• Vapor Permeable & Breathable Structure: Un-faced design permits moisture evaporation, preventing internal condensation, mold growth, and structural decay inside wall systems.
• Superior Acoustic Absorption: High open-porosity fiber structure achieves a Noise Reduction Coefficient (NRC≥0.90), effectively dampening airborne and impact noise in partitions.
• High Density & Load Performance: Available in customizable density ranges (40kg/m³ to 180kg/m³)to withstand mechanical impact, structural compression, and wind loads.
• Hydrophobic CUI Protection: Treated with water-repellent additives to minimize water absorption and prevent Corrosion Under Insulation (CUI) on industrial steel equipment.

Primary Applications & Scenarios

• Exterior Wall Insulation Systems (EIFS / ETICS): Thermal and fireproof insulation core for external continuous insulation facades.
• Curtain Wall Firestops & Rain-screens: Floor-to-floor fire barrier panels and ventilated facade insulation systems.
• Drywall & Interior Acoustic Partitions: Soundproofing slabs for commercial office walls, hotel suites, and residential drywall systems.
• Industrial Tanks, Boilers & Furnaces: High-heat thermal shielding intended for secondary metal jacketing or outer cladding.

Customization & Specifications

• Density Range: 40kg/m³ to 180kg/m³ (tailored for light wall fill or heavy-load roof/facade systems).
• Thickness Range: 25mm to 150mm+.
• Standard Slab Sizes: 1200 mm × 600mm or custom cut-to-size dimensions.
• Surface Treatments: Plain raw core, water-repellent treated core, or high-tensile mesh reinforced panels.

Why Partner With Us (Factory & Export Capability)

• Direct Wholesale Pricing: Bypass trading intermediaries with scalable factory pricing designed for South American importers and bulk buyers.
• High-Density Compressed Packaging: Specialized palletized packaging maximizes container loading capacity (CBM), significantly reducing ocean freight cost per square meter.
• International Certification Compliance: Full ISO 9001 quality management, CE marking, and ASTM compliance with batch Mill Test Certificates (MTC) supplied with every export shipment.
• Dedicated LATAM Shipping Routes: Fast production lead times and established ocean freight logistics serving key Latin American ports (Santos, Valparaíso, Callao, Guayaquil, Cartagena, Veracruz).

Un-faced mineral wool board insulation (plain mineral wool slab) is the foundational choice for high-performance architectural wall systems, drywall soundproofing, and industrial thermal containment. Ideal for projects that require maximum thermal breathability or custom field-applied cladding, our rigid mineral wool slabs deliver long-term fire safety, energy conservation, and acoustic absorption.

We support Latin American insulation stocking distributors, building facade contractors, and industrial procurement agents with tailored production runs, competitive container rates, and consistent quality. Contact our engineering sales team today to request technical datasheets, free product samples, or a direct factory quotation for your upcoming project.