Scientific Formulation: Precise Control for Stable & Reliable Performance

Based on core ingredient HQ-9530 modified silicone-acrylic emulsion, the product delivers the following outstanding features:

Superior Weather & UV Resistance: HQ-9530 modified silicone-acrylic emulsion combines the durability of organosilicon and flexibility of polyacrylate, forming dense and tough coating films. It effectively resists erosion from UV rays, rainwater, freeze-thaw cycles and other harsh environments, greatly slowing down chalking and discoloration of washed stone surfaces to retain long-lasting color and fresh appearance.

Excellent Stain Resistance & Easy-to-Clean Property: The coating features low surface energy with remarkable lotus leaf effect, preventing dust and contaminants from adhering firmly. Even if stained, surfaces can be restored to a clean finish simply by rain wash or light water cleaning, drastically cutting later maintenance costs.

Outstanding Transparency & Color Retention: The formula is engineered for high transparency to fully display the natural texture and original color of washed stone without whitening or yellowing, realizing truly invisible protective coating.

Eco-Friendly & Construction-Friendly: Water-dilutable with low VOC content, fully complying with environmental standards. Scientific matching of additives including HQ-8410 molecular defoamer and HQ-3295 multifunctional additive ensures stable storage and smooth construction performance.

Formulation: Perfect Integration of Performance & Construction Technology

Core Film-Former: HQ-9530 modified silicone-acrylic emulsion (700 parts), serving as the backbone to deliver ultimate coating performance.

Intelligent Coalescent System: TEXANOL (56 parts) ensures low-temperature film formation. Supplementary butyl ether is recommended for winter construction to form complete, continuous coating films all year round.

Optimized Auxiliary Package: HQ-8410 molecular defoamer (1 part): Efficient foam breaking and long-term foam suppression to guarantee smooth, defect-free films. HQ-3295 multifunctional additive (1 part): Precisely adjusts pH value and enhances system stability. HQ-2025 high-temperature biocide (2 parts): Effectively prevents mold and spoilage during storage and application for extended shelf life.

Precise Rheology Control: Polyurethane thickener HQ-6737 (6 parts, pre-diluted with ethylene glycol at 1:1) accurately tunes system viscosity to 65-70 KU. This viscosity balances outstanding workability and anti-sagging performance for uniform coating results via both roller coating and spraying.

Technical Support Hotline: For any issues regarding formula adjustment or construction, please contact Haoqian Technology technical service at 13094886496.

Application Performance

Environmental Adaptability

For the Harbin Ice & Snow World project, washed stone pavements coated with HQ series products withstood extreme cold of -32°C without freeze-thaw peeling. The water permeability coefficient remained 2.1×10⁻² cm/s, effectively solving road icing problems in northern winter regions.

Long-Term Color Retention

After 3000-hour continuous QUV accelerated aging test (340nm wavelength, irradiance 0.68W/m²), HQ-9208 emulsion system only shows color difference ΔE=1.2, far superior to industry standard ΔE≤3. For a commercial complex in Zhujiang New Town, Guangzhou, the color retention rate reached 95% after 5 years of service.

Innovative Integrated Functions

Self-Cleaning Performance: Surface contact angle reaches 112°, over 90% stains can be washed away by natural rainfall.

Thermal Reflection Adjustment: Reflectivity 0.85, reducing surface temperature by 5~8°C.

Silent Aesthetic Protection for Long-Term Value Upgrade

Noise Reduction Function: Sound absorption coefficient 0.72 (500Hz~2000Hz), ideal for landscape belts alongside traffic roads.

Visual Upgrade: More saturated and vivid color, clear and vivid stone texture, delivering premium and glossy overall appearance.

Long-Lasting Protection: Effectively prevents weathering and peeling caused by UV radiation and acid rain, extending the service life of washed stone surfaces.

Timeless Fresh Look: Superior stain resistance keeps walls clean for years, drastically lowering cleaning frequency and maintenance costs.

High Comprehensive Economic Benefit: One-time investment brings years of benefits, the ideal solution to upgrade quality and added value of washed stone projects.

Case Studies: Value Verification from Laboratory to Real Projects

01 Exterior Wall of Coastal Hotel

The exterior wall of a coastal hotel adopts HQ-9530 topcoat matched with HQ-9208 resin system. After 3 typhoon seasons of exposure, no cracking or discoloration occurs, cutting maintenance cost by 60% with greatly enhanced durability.

Construction Efficiency Upgrade: Rheological property of HQ-6737 polyurethane thickener boosts spraying efficiency by 40% and reduces material waste.

Enhanced Aesthetic Effect & Color Reproduction: Adjust sand aggregate ratio and topcoat gloss (matte / semi-gloss) to achieve premium textures imitating natural granite and marble.

02 Boutique Homestay at Qiandao Lake

2,800 ㎡ black basalt washed stone surface for a boutique homestay in Qiandao Lake, Hangzhou

Construction Date: Nov 15, 2023, ambient temperature 6–12 ℃;

Topcoat System: Two coats of HQ-9530 clear topcoat;

Retest Test Data (Oct 2024):

Color difference ΔE=0.8 (initial ΔE=0);

Water contact angle: slight drop from 103° to 101°;

Stain resistance (24h red ink test): Grade ≤2;

3000-hour accelerated aging test: No blistering or cracking;

Owner Feedback: "After one year, the stone stays glossy black and gets fully cleaned by rainwater without any touch-up repainting needed."

03 Commercial Complex

Exterior wall of coastal commercial complex (dual system: HQ-9208 resin washed stone base + HQ-9530 protective topcoat)

Project Challenge: High salt fog, intense UV radiation and monsoon climate lead to severe chalking and discoloration of traditional washed stone within 6 months.

Solution:

Performance Verification: