NSW Building & Civil
Freshly spray sealed road through a country town under a stormy sky, with a roller working in the distance

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Service 12 / 18

Spray Sealing

Bitumen spray sealing for council and regional roads: a waterproof, hard-wearing surface with good grip, laid quickly with little disruption.

At a glanceNSW

  • 01Hot bitumen and stone chips
  • 02New seals and reseals
  • 03For council and regional roads

The job

Spray sealing, also called a bitumen or chip seal, is hot bitumen sprayed over the road and covered straight away with stone chips that are rolled in. NSW Building and Civil lays spray seals for councils and government agencies, giving roads a tough, waterproof surface with good grip.

We repair and sweep the road first, then spray the bitumen, spread the stone and roll it in, and sweep up any loose stone at the end. Traffic control is in place for the whole job, so the road stays open where possible and reopens quickly.

What we do

Spray Sealing

  1. Surface Preparation

    Potholes and soft spots are repaired, then the road is swept clean and dry so the seal bonds properly.

  2. Bitumen Spraying

    A sprayer truck lays an even coat of hot bitumen across the road, at the rate that road needs.

  3. Stone & Rolling

    Stone chips are spread straight over the hot bitumen and rolled in to lock them in place. Loose stone is swept up afterwards.

  4. Reseals

    Worn, cracked or dry sealed roads get a fresh seal that keeps water out and adds years to the road underneath.

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Line Marking