This is usually done if the star composition does not ignite easily.

A bomb under a seat in the middle of the plane could have easily ignited the tank.

Even green, it ignites easily and causes fires on the hills.

Although not easily ignited, it is also a combustible.

The high volatility also means that it will easily ignite in hot weather conditions, unlike diesel for example.

It ignites easily despite being so dense, and produces a fragrant smoke.

The neighboring karate school was in a new concrete block structure that would not ignite easily.

He'd already been informed the chips ignited easily and produced a virtually smokeless fire.

Aerosol hairspray is a popular fuel because it ignites easily.

It is very toxic and ignites easily, burning with a very hot flame.