Description

A hot poured, hard grade rubber bitumen horizontal joint sealant for movement and construction joints in pavements, floor slabs, water retaining and water excluding structures. It is designed to retain its movement accommodation of 10% on butt joints throughout temperature extremes and is suitable for joints up to 30 mm wide in trafficked surfaces and 65 mm wide for horizontal joints not subject to trafficking. The depth should not exceed 50 mm and for most normal uses 25 mm is recommended. Nitoseal MB77 is also suitable for sealing joints in factory floors other than those subjected to petrol, oils or fats.

Features:

  • Economic sealant for horizontal and inclined joints up to 1/20.
  • Good adhesion to concrete and asphalt surfaces.
  • Resists dirt and ingress of grit associated with trafficked pavements.

General information

Features

Economic sealant for horizontal and inclined joints up to 1/20

Good adhesion to concrete and asphalt surfaces

Resists dirt and ingress of grit associated with trafficked pavements

Uniclass 2015

Pr_30_31_76_38 Hot-applied bituminous joint sealantsPrimary

CAWS

E40/530 Sealant

M10/468 Sealant movement joints with metal edgings

Q21/110 Unreinforced paving (designated concrete)

Q21/115 Paving with embedded metal (designated concrete)

Q21/117 Unreinforced paving (designed concrete)

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Specification data - Hot-applied bituminous joint sealants

Product Reference

Nitoseal MB77

Primer

Not required

For non-porous materials.

Primer B2

Standard product features

Colour:

Black.

Technical properties:

  • Application temperature: >5°C.
  • Density: 1.02 kg/L.
  • Flash point: >65°C.
  • Pouring temperature: 180–190°C.
  • Safe heating temperature: 195°C.
  • Solids: 100%.

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