acoustic rubber black rubber 1x1.2m /1.2x2m/1x2m /sheet 30mm/50mm/75mm/100mm thickness 35kg/50kg/60kg/m3 density Acoustic rubber insulationSpecificationsnoise control acoustic rubber insulation for drainage pipe PVC/NBR, foam rubber-plastic insulation materials.noise control acoustic rubber insulation for drainage piperubber insulation sheet for air conditioning blackPVC/NBR foam rubber-plastic insulation materialsrubber foam heat preservation material Function: thermal protection;Prevent condensation;Length2 metersInside diameter: 1/4, 3/8, 1/2, 5/8, 3/4, 7/8, 1, 1-1/8, 1-3/8, 1-1/2, 1-5/8, 1-7/8, 2-1/8, 2-3/8, 2-5/8, 3, 3-1/2, 4-1/4Thickness: 1/4, 3/8, 1/2, 3/4, 1, 1-1/4, 1-5/8, 1-7/8