Isaac asphalt stands as a joint venture partnership alongside Downer NZ Ltd. We have been operating in Christchurch for over 40 years, supplying quality asphalt products throughout the Canterbury region and beyond.

Over the last few years we have supplied asphalt for several major Canterbury projects including Sawyers to Groynes Northbound arterial route, Russley Road/Johns Road Upgrade, Memorial Avenue Over Bridge and Underpass, and various CCC earthquake repairs and upgrades.

We supply standard asphalt mixes, or we can help to create a custom product that suits your needs.

Our standard range of products include;

  • Asphaltic Concrete (AC) Carpark
  • Asphaltic Concrete (AC) 5
  • Asphaltic Concrete (AC) 10
  • Asphaltic Concrete (AC) 14
  • Asphaltic Concrete (AC) 16
  • Asphaltic Concrete (AC) 20
  • Asphaltic Concrete (AC) 20 Kiwinas
  • Bitumen Bound Basecourse (BBB) 40
  • Coldmix
  • Emulsion Treated Basecourse (ETB)
  • Dense Graded DG7
  • Dense Graded DG10
  • Supply & heat grade 3 chip
  • Supply & heat grade 5 chip
  • Supply & heat grade 6 chip
  • Matrex 5 Green
  • Matrex 7 Green
  • Matrex 10 Green
  • Matrex yellow bag - 20 kg
  • Matrex bag - 1 tonne
  • Matrex Patchmix - 20 kg
  • Matrex Campbell Mix - 20 kg
  • Matrex Campbell Mix - 1 tonne
  • OGPA
  • Enviro Tack 60/B180 K6
  • Enviro Tack – 20 litre
  • Stone Mastic Asphalt (SMA)
  • Stone Mastic Asphalt (SMA) Melter
  • Stone Mastic Asphalt (SMA) PC-1770