Densostrip Sealing Strips in Saudi | Denso Sealing Strips in Saudi

Densostrip Sealing Strips in Saudi, supplied by Nassguard, provide flexible joint sealing for precast concrete structures. The preformed strips sit between prepared joint faces and compress as the concrete units come together, forming a watertight seal.

From drainage chambers to box culverts, a reliable joint depends on the correct strip size, surface preparation and compression. Nassguard supplies Densostrip™ Concrete Joint Sealing Strips for construction and infrastructure requirements across Riyadh, Dammam, Jubail, Jeddah and Al Khobar.

What Are Densostrip™ Concrete Joint Sealing Strips?

Densostrip is a preformed sealing compound based on plasticised, high-melting-point bitumen with inert siliceous fillers. It seals joints between precast concrete units while retaining flexibility.

Installers position the strip on joint faces prepared with Densostrip Primer, then compress it between the adjoining sections. This compression develops the contact and adhesion needed for sealing.

The product is intended for concrete jointing and differs from Densyl profiling mastic, pipe-wrapping tape and butyl sealing tape.

Key Features of Densostrip Sealing Strips

Densostrip combines a preformed format with properties suited to buried concrete joint applications.

• Flexible sealing accommodates the intended joint arrangement without forming a rigid mortar joint.
• Preformed strips allow installers to position the compound along the joint.
• Concrete adhesion supports sealing when the surfaces are correctly prepared and primed.
• Chemical resistance includes resistance to acids, alkalis and salts.
• Root-penetration resistance helps protect joints in underground installations.
• Microbial resistance supports use in drainage and sewer environments.
• Multiple section sizes allow selection to suit different joint designs.

Applications of Densostrip Concrete Joint Sealing Strips

Use Densostrip in compatible precast assemblies where the joint design provides adequate compression.

• Concrete manholes: Seal joints between precast rings and associated sections.
• Inspection chambers: Form flexible seals between adjoining chamber units.
• Box culverts: Seal matching precast sections using the specified mechanical compression method.
• Concrete pipes: Seal suitable joint profiles, including ogee pipe arrangements.
• Tunnels and shafts: Seal joints between appropriately designed precast segments.
• Saudi infrastructure projects: Support drainage and sewer construction across Riyadh, Dammam, Jubail, Jeddah and Al Khobar.

Selecting the Grade for Saudi Conditions

Densostrip Tropical is a separate grade with an application range of +10°C to +50°C and a service range of −10°C to +50°C. Its properties differ from standard Densostrip.

For Saudi projects, specify the grade according to the expected joint temperature, installation conditions and project requirements. Confirm the strip section against the precast unit’s joint dimensions before ordering.

Joint Preparation and Installation

Densostrip develops its seal through compression, so simply placing material in a gap does not complete the joint.

• Inspect the concrete: Repair damaged joint faces before beginning installation.
• Clean and dry both faces: Remove dust, dirt and loose material.
• Prime the surfaces: Apply Densostrip Primer to both joint faces and allow it to dry.
• Position the correct strip: Follow the approved arrangement for the particular joint profile.
• Maintain continuity: Fit the strip around the entire joint without gaps and join the ends correctly.
• Align the units: Bring the concrete sections together without dislodging the strip.
• Apply adequate compression: Compress the strip to half its original thickness using the appropriate installation method.
• Inspect and test: Remove internal excess where necessary and complete the specified joint checks before covering the work.

Standards and Compliance

• BS EN 1917:2002 — When used with Densostrip Primer, the system meets the stated requirements for concrete manholes and inspection chambers.
• CESWI, 7th Edition — Meets the referenced Civil Engineering Specification for the Water Industry.
• Sewers for Adoption, 5th Edition — Meets this historical specification reference; the fifth edition has since been superseded.

These are standards and specification references, rather than standalone product certificates.

Inspection, Storage and Maintenance

Check joint quality during assembly, while the sealing faces and compression remain accessible.

• Inspect strip continuity before closing each joint.
• Check alignment and compression after bringing the units together.
• Remove obstructive excess from internal surfaces where required.
• Record leakage-test results before backfilling or concealing the joint.
• Investigate leaks properly rather than assuming external caulking will replace an inadequately compressed seal.
• Protect stored reels from contamination and keep them in their original packaging.
• Retain installation records identifying the grade, strip size and joint location.

Why Choose Nassguard for Densostrip Sealing Strips in Saudi?

Nassguard supplies Densostrip for precast concrete installation and infrastructure maintenance requirements. A clear enquiry helps establish the appropriate material configuration.

• Grade identification distinguishes standard Densostrip from Densostrip Tropical.
• Joint drawings or dimensions help define the required strip section.
• Joint quantities and perimeter lengths support material planning.
• Primer requirements can be included alongside the sealing strips.
• Delivery details support supply planning for Riyadh, Dammam, Jubail, Jeddah and Al Khobar.

Frequently Asked Questions

1. What are Densostrip sealing strips used for?
They seal suitable joints between precast concrete units such as manholes, chambers, pipes and culverts.

2. Does Densostrip require primer?
Yes, apply Densostrip Primer to the prepared joint faces before positioning the strip.

3. How does the strip form a seal?
Compression between the concrete faces develops the contact and adhesion required for sealing.

4. How much compression is required?
The installation procedure specifies compression to half the strip’s original thickness.

5. Can I select any strip size for a concrete joint?
No, the strip section must suit the joint profile, dimensions and required compression.

6. Is standard Densostrip suitable for every Saudi installation?
Select standard or Tropical grade according to the installation temperature, service conditions and project specification.

7. How can I order Densostrip from Nassguard?
Send Nassguard the required grade, joint dimensions, total joint length, quantity and delivery location.

Conclusion

Densostrip™ Concrete Joint Sealing Strips provide a flexible sealing option for compatible precast concrete assemblies. Their performance depends on selecting the correct section, preparing and priming the faces, and achieving adequate compression throughout the joint.

For Densostrip Sealing Strips in Saudi, contact Nassguard with your joint drawings and project requirements. Confirming the grade, strip size and primer together helps keep procurement aligned with the installation work.