BST-521HT Inorganic Silicon Wear-Resistant Nano Ceramic Anti-Corrosion Coating
BST-521HT is a high-performance single-component inorganic silicon functional protective coating. Relying on advanced sol-gel nanocomposite technology, it uses high-purity inorganic silica sol as the film-forming matrix, compounded with ultra-hard ceramic powders such as nano alumina, zirconia, and silicon carbide, as well as functional anti-corrosion additives, and is refined through high-speed dispersion and nano-homogenization modification processes. The product abandons the shortcomings and defects of traditional organic coatings. After curing, it forms a dense, continuous, highly cross-linked inorganic ceramic hard protective film on the substrate surface, achieving integrated multi-functions of physical wear protection, chemical media anti-corrosion, high-temperature resistance, and oxidation resistance. The coating combines the weatherability, heat resistance, and flame retardancy of inorganic materials with the density and adhesion advantages of nano materials. It is free of formaldehyde, heavy metals, and has low VOC, making it a green and environmentally friendly industrial heavy-duty anti-corrosion coating, widely suitable for long-term protection of equipment, steel structures, and metal substrates under various harsh working conditions.
※ Ultra-high wear resistance and impact resistance: After curing, the coating forms a ceramic-like hard structure with high surface hardness and low friction coefficient, effectively resisting sand and gravel erosion, mechanical friction, and hard object impact. It features extremely low wear loss, excellent impact resistance, and is suitable for high-frequency wear conditions.
※ Ultimate anti-corrosion and erosion resistance: The nano-level dense film-forming structure completely isolates corrosive media such as moisture, oxygen, acid/alkali salt spray, and organic solvents, preventing electrochemical corrosion of the substrate. Its acid resistance, alkali resistance, salt spray resistance, and damp heat aging resistance far exceed those of conventional anti-corrosion coatings.
※ Stable high-temperature resistance: The purely inorganic silicon ceramic system contains no organic resin components, and will not soften, flow, carbonize, or peel off at high temperatures. It can withstand high-temperature conditions for long periods, while also possessing excellent oxidation resistance and resistance to high-temperature oxidation peeling.
※ Extremely strong adhesion: It can chemically bond with various substrates including carbon steel, stainless steel, aluminum alloy, cast iron, ceramics, and concrete. With strong penetration and adsorption force, the film is not prone to peeling, blistering, or cracking, and is suitable for multi-material substrate protection.
※ Green, environmentally friendly, and safe: Using anhydrous ethanol as the dilution medium, it contains no toxic solvents such as benzene, toluene, or xylene, no heavy metal hazardous substances, and has low VOC content. Construction is odorless, complying with industrial environmental emission standards and safety production requirements.
※ Weather resistance and aging resistance: The inorganic ceramic structure is resistant to UV rays and wind and rain erosion. Long-term outdoor use will not cause chalking, fading, or cracking, with a long-term protection service life of over 10 years.
※ Convenient and efficient construction: Single-component system, no proportioning or mixing required, curable at room temperature, compatible with spray coating, brush coating, and roller coating. Fast drying speed and high construction fault tolerance.
Item
Technical Parameter
Test Standard
Product appearance
Colorless transparent liquid
Visual inspection
Solid content
≥ 30%
GB/T 1725-2007
Density
0.93 ± 0.02 g/cm³
Measuring instrument method
Viscosity
15–20 mPa·s (25°C)
Rotational viscometer method
pH value (25°C)
7.0–8.0 (neutral)
pH test paper / pH meter
Drying time
Surface dry ≤ 2 h, through dry ≤ 4 h (25°C room temperature)
GB/T 1728-1979
Complete cross-linking period
7 days (reaching peak performance)
GB/T 1728-1979
Item
Test Value
Executive Standard
Film hardness
≥ 4H
GB/T 6739-2021
Adhesion (cross-cut test)
Grade 0 (no peeling)
GB/T 9286-1998
Impact resistance
50 cm·kg, no cracking, no peeling
GB/T 1732-2020
Water resistance (500h immersion)
No blistering, no peeling, no discoloration
GB/T 1733-1993
Abrasion resistance (wear loss)
≤ 20 mg (1000 cycles)
GB/T 1768-2006
Salt spray resistance
Neutral salt spray 1000 h, no rusting, no penetration
GB/T 10125-2021
Acid resistance (5% H₂SO₄)
200 h immersion, no corrosion, no peeling
GB/T 1763-2008
Alkali resistance (5% NaOH)
200 h immersion, no corrosion, no peeling
GB/T 1763-2008
UV aging resistance (1000 h)
No discoloration, no gloss loss, hydrophobic retention rate ≥ 98%
GB/T 16422.3-2014
Flammability rating
V-0 grade, non-combustible, no flame spread
GB/T 2408-2021
VOC content
≤ 20 g/L
GB/T 24410-2009
Free formaldehyde and heavy metal content
Not detected
GB 18582-2020
※ Industrial high-temperature equipment: Surface high-temperature anti-corrosion and wear-resistant protection for boilers, kilns, hot air pipelines, high-temperature heat exchangers, heat treatment equipment, metallurgical high-temperature operating platforms, and incinerator equipment.
※ Heavy steel structure fields: Outdoor heavy-duty anti-corrosion, weather-resistant, and wear-resistant protection for bridge steel structures, outdoor towers, engineering machinery, port equipment, wind power equipment, and photovoltaic supports.
※ Chemical anti-corrosion fields: Resistance to chemical media corrosion for chemical storage tanks, reaction kettles, conveying pipelines, desulfurization and denitrification equipment, acid/alkali condition equipment, and sewage treatment equipment.
※ Mining and power fields: Protection for high-frequency wear and dust erosion conditions on mining machinery, conveying chutes, pulverized coal pipelines, fan impellers, and ash conveying equipment in power plants.
※ General metal substrate fields: Long-term anti-corrosion, wear-resistant, and weather-resistant protection for various metal parts including carbon steel, stainless steel, aluminum alloy, and cast iron.
※ Anti-corrosion floor topcoat fields: Heavy-duty anti-corrosion and wear-resistant protection for floors in chemical plants, pharmaceutical factories, and hazardous waste treatment plants.
