Envirobed HA104® Flowable, part of the Approved Manhole Reinstatement System, is specifically formulated for bedding large section manhole covers and frames conforming to the Highways Agency Design Manual for Roads and Bridges: Mortars for Bedding Ironwork HA104/09. It is suitable for use in wet weather. Superior compressive, tensile and flexural strengths are reached after 3 hours. It provides all the performance of Envirobed HA104® Regular Mortar but is significantly easier to apply. It is therefore ideal for use on larger frames and covers. No hazardous waste disposal is required, unlike traditional resin-based mortars and grouts.