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Jointing Compound – Rompox

15kg tub


Roadstone provides a range of easy to use, self stabilising jointing compounds. Joints to a minimum width of 5mm can be easily filled and can provide more effective approach to the traditional mortar system.

Rompox is a highly water permeable pavement fixing mortar that allows almost all quantities of rainwater to seep into the ground. Due to the open porous structure of Rompox, all the requirements for a water permeable and thus environmentally friendly pavement fixing mortar are fulfilled.

Key Features & Benefits

  • Highly water permeable
  • Weed free
  • Abrasion resisitant
  • Environmentally friendly
  • Cost effective
  • Mixed ready to use


  • Patios
  • Footpaths
  • Non-trafficked entry areas

Product is available in 15kg tubs with a coverage rate of between 7-10m²

  • Neutral
  • Basalt
  • Stone grey


Technical Details & Certifications

  • Application time: Approx. 20-30 minutes at +20°c working temperature
  • Surface temperature: > 0°c
  • At lower temperatures slow hardening
  • At higher temperatures quick hardening
  • Surface can be walked on after 24 hours, final re-opening – after 6 days (at approx. 20°c surface temperature)
  • Coverage rate: 7-10m²


Application Data

Clean out joints to a depth of at least 30mm (Minimum joint width 5mm). The surface to be joint-fixed should be cleaned of all impurities before work commences. Adjoining surfaces that are not to be joint-fixed are taped off.
Remove plastic vacuum-sealed bag from the bucket and cut open.

Pour the pavement fixing mortar onto the surface and work it into the joints using a coarse broom or squeegee/ruber slider.

Finally, sweep the stone surface carefully using a soft, hair broom to remove all residual mortar. Sweeping should be done diagonally to the joint. Do not re-use swept off material. A subsequent application is not necessary. Any residual mortar on the stone surface can still be swept off 24 hours later using a coarse, street broom.

Case Studies & Resources

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