But it may also suggest that the supplier of sealing material should develop a softer compound that would require less effort to close the door.

The decision for using clay instead of paved asphalt was due to the softer compound.

The teams were supplied with the medium and soft compounds, the same selection that had been provided at the previous race in Shanghai.

Lap 21 saw Räikkönen and Rosberg the only drivers in the top 9 on the soft compound after both saving a set during qualifying.

They are grooved, made of soft compound, and are narrower than slicks.

The second layer was a soft, moist, royal blue compound the consistency of a melon.

This is because they emphasize traction and are made from softer compounds intended to hold the road better.

Keep one edge of the tool raised slightly so it does not dig into the soft compound.

Petty led the last 25 laps after a late tire change where his team put on "gumballs" (softer compound tires).

The difference between the medium and the soft compounds was predicted around 0.8 seconds per lap.