T/HEBQS 012-2023 Active Group standards

T/HEBQS 012-2023 Metal roof acrylic high-elastic waterproof paint

Publish Date: 2023-03-15 Implement Date: 2023-03-20 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/HEBQS 012-2023

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Paints and varnishes

Publish Date: 2023-03-15

Implement Date: 2023-03-20

Scope

Main Technical Content: Acrylic High-Elastic Waterproof Coating for Metal Roofing **Physical Properties** **Item No. | Technical Indicators | Ordinary Type | Heat-Reflective Type** 1 | Solid Content (%) | ≥65 | ≥65 2 | Tensile Strength without Treatment (MPa) | ≥1.53 | ≥1.53 3 | Elongation at Break without Treatment (%) | ≥150 | ≥150 4 | Tear Strength (N/mm) | ≥125 | ≥125 5 | Water Absorption (%) | ≤15 | ≤15 6 | Waterproofness | 0.3 MPa, 30 min | | 7 | Heat Resistance | 90 °C, 5 h | | 8 | Low-temperature Bending | –30 °C, 1 h | | 9 | Peel Adhesion (N/mm) | ≥30 | ≥30 10 | Heat Treatment Retention of Tensile Strength (%) | ≥80 | ≥80 11 | Water Immersion Treatment Retention of Tensile Strength (%) | ≥80 | ≥80 12 | Acid Treatment Retention of Tensile Strength (%) | ≥80 | ≥80 13 | Artificial Climate Aging Treatment Retention of Tensile Strength (%) | ≥80 | ≥80 14 | Thermal Expansion/Contraction | ≤1.0 | ≤1.0 15 | Stain Resistance (White and Light Colors) | ≤20 | | 16 | Solar Reflectance (White) | ≥0.80 | | 17 | Hemispherical Emissivity | ≥0.80 | | 18 | Harmful Substances Content | Volatile Organic Compounds (VOC) (g/L) | ≤10 | | 19 | Soluble Heavy Metals | Lead (Pb) | ≤10 | | 20 | Cadmium (Cd) | ≤10 | | 21 | Chromium (Cr) | ≤20 | | 22 | Mercury (Hg) | ≤10 | | **Note**: Only the solar reflectance of white coatings is required. The solar reflectance of light-colored coatings shall be agreed upon by both the supplier and the buyer. a **Light color** refers to the light color of the coating film formed by adding a suitable amount of color paste to white coating after drying, with a brightness value of 6~9 (YD65 > 31.26) according to GB/T 15608-2006.