... good mobility, anti-aging, water-proof, fireproof, slide-prevention, and be able to endure Acid & Alkali.4.For our pvc sports floor ... under normal condition with 6 years warranty.5.Easy installation and maintenanceProperties Standard date Inspection Result shore hardness55~7567 Ball rebound ... % 94% fire resistance 1 1 Thickness 5~8mm, specilized in how to make a tennis court construction