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Download technical drawings for Densostrip joint sealant installations (EXTERNAL WEBSITE)
Home Sealing Mastics > Densostrip Joint Sealant


download technical drawings for Densostrip installations (EXTERNAL WEBSITE)

Precast box culvert unit being lowered into position, pre-primed and ready for the application of Densostrip joint sealant for a storm water attenuation system, Caerphilly, Wales, UK.

A compound rubber and bitumen joint sealing strip for sealing the joints of precast concrete units to provide a permanently flexible watertight seal when compressed between joint faces previously primed with Densostrip Primer. This enables an effective seal for precast concrete box culverts, manholes, inspection chambers, shafts, tunnels and pipe sections.

Densostrip concrete joint sealing strip is resistant to chemical and biological attack. Recommended by precast concrete manufacturers; when used with Densostrip Primer it meets BS EN 1917:2002 requirements for manholes (no need for concrete surrounds)

Densostrip is manufactured under a management system conforming to BS EN ISO 9001:2008
  • BS EN 1917:2002 Concrete manholes and inspection chambers
  • CESWI Civil Engineering specification for the water industry
    7th Edition (UKWIR Ltd)
  • Sewers for adaption, 5th edition (WRC Plc)
Densostrip being applied to a precast concrete joint section
application of Densostrip to a precast concrete manhole
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