... thickness Humidity Resistance(RH)>=90%Light reflectivity>=85%Fire Performancenon-combustible,reach class A according to EN13964: ... 20mm etc.Mineral Fiber Tile Product FeatureSound absorbing,Resistance to fire, warm-keeping, energy-saving, heat-insulatingPatternMineral Fiber Tile ... :1. Sound-absorpt ,Sound Insulation,Heat Insulation ,Fire-Proof2. No asbestos,No Formaldehyde3. Prevent Sink4.Decorative