Mechanically Textured Fiberglass Veil for PIR/PUR Composite Bonding

Advanced composite substrate engineered for PIR/PUR thermal building envelopes demonstrates proven capability in enhancing flexural strength (≥18MPa), chemical inertness (pH 1-14), and surface roughness (Ra≤0.8μm) for polyisocyanurate/polyurethane insulation systems. The material's >95% contour adaptability enables precision molding on sharp edges (R≤2mm), free-form geometries, and multi-radii curved surfaces, particularly critical in architectural cladding applications.
When integrated with EP/VE/UP/PU resin systems, the substrate achieves rapid formation of 20-30μm resin-saturated interlayers within 30s curing cycles, significantly improving laminate consolidation efficiency. Post-molding quality assessments confirm <0.5% surface porosity with 60-70% reduction in fiber telegraphing compared to conventional glass veils, meeting EN 13172 and ASTM C1289 standards for insulation facers.
This performance profile positions the material as an optimal solution for:
• High-rise building envelopes requiring fire-resistant facings (EN 13501-1 certified)
• Cryogenic insulation systems demanding -196°C thermal cycling stability
• Chemical processing plants with exposure to concentrated acids/alkalis
Product performance
Glass fiber reinforced veils significantly enhance PIR/PUR board performance, boosting interlaminar shear strength (18-22MPa) and chemical resistance (pH 1-14). The material maintains dimensional stability (<0.3% thermal expansion at 150°C) with high tensile strength (≥50N/cm) and fire resistance (UL 94 V-0). Its rapid resin compatibility enables efficient formation of 15-25μm protective layers, eliminating surface defects while achieving >99% filtration efficiency at 200°C. These properties make it ideal for industrial insulation systems requiring ASTM E84 Class A fire ratings and chemical processing equipment demanding corrosion resistance.
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Building heat preservation and insulationGlass fiber reinforced facing is widely applied in surface cladding of polyurethane insulation boards and vertically oriented mineral wool composites. This fire-rated material provides moisture barrier properties and fungal resistance, making it suitable for architectural applications including ceilings, walls, and roofing systems, as well as decorative panel assemblies requiring ASTM E84 Class A fire protection standards.
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Roof waterproofing and thermal insulationGlass fiber composite substrate serves as an engineered base for roofing membranes, demonstrating chemical resistance, mechanical robustness, and dimensional stability under thermal cycling (-30°C to +80°C), making it optimal for waterproofing systems in industrial and commercial construction.
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Industrial filtration and anti-corrosionGlass fiber coated felt is also used as industrial filtration and anti - corrosion materials, such as in concrete structures like sewage and waste pools with long - term corrosive media.
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Decoration and sound absorptionFiberglass coated felt can be used for indoor sound absorption and noise reduction, and act as a decorative material in high - end places like star - rated hotels, ordinary hotels, and shopping malls.

Pipe insulation
Fiberglass coated felt is suitable for pipe insulation, especially for the corrosion protection of buried steel pipelines used to transport oil and natural gas.
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ABOUT GRECHO
GRECHO, a renowned name in architectural interiors, stands out due to our exceptional design and craftsmanship, particularly in fiberglass coated veil. Our team's proficiency in architecture, engineering and material science ensures superb quality in both aesthetic and functional aspects of design. Innovatively integrating cutting-edge technology with timeless elegance, we're at the forefront in ceiling and wall issues . At GRECHO, professionalism, innovation, and exceptional customer service form the backbone of our operations, as we succeed in crafting spaces where beauty meets resilience.
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GRECHO FIBERGLASS VEIL INSPECTION