Plasto-Elastic Iran Polymer Modified Bitumen Description of Plasto-Elastic Iran Polymer Modified Bitumen RAHASEAL is a single component, hot-applied plasto-elastic polymer modified bituminous Concrete Paving Joint, crack, and expansion joint sealant, specially formulated to be used into horizontal expansion joints and cracks. The sealant is supplied in solid form and can be applied using sealing melter applicator […]