Primers or exterior wall coatings used for building interior and exterior walls must be tested for 24-hour permeability. According to the standard, the substrate used for testing must comply with the NAF (asbestos free) H (high-density) V level technical requirements in JC/T412.1-2006, and the initial permeability of unpainted test panels after 24 hours must be greater than 4ml. The special cement board for permeability testing belongs to the high-density fiber cement board system, which is a material with excellent properties such as lightweight, high flexural strength, fire resistance, heat insulation, collision resistance, and good sound insulation. It is a durable indoor and outdoor wall material that can withstand all weather conditions.
Standard: JC/T412.1
Technical Parameter
Performance parameter
Standard indicators
Density (D)
1.4g/cm3<D≤1.6g/cm3
Bending strength - air drying
≥10Mpa
Bending strength - saturated
≥7Mpa
Moisture expansion rate (%)
≤0.25%
Incombustibility
A-grade non combustible materials
Impermeability
No water droplets appear on the board surface after 24 hours
radioactivity
Class A decoration materials
100% free of asbestos components
Order Number
Order Number
Dimension
Packing quantity
PS 2960
200*150*5mm
100 pieces/box
Also, if you need special specifications, please contact us. Thank you!