... flexible, 3, lower heat conductivity 4, ISO, IQNET, PROP65 one skin rubber foam sheet rolls Rubber foam is a flexible and ... the oil and gas and petrochemical industry. rubber foam insulation analysis 1, Have very low water absorption or water vapour permeability ... 8, Low water absorption and water vapour permeability 9, Natural skin outside to prevent water vapour penetration 10, Tough external: ...