Alchemist Explosive Bomb fire damage stacking?

[Mok]

Alchemists with the Explosive Bomb discovery:

PRD wrote:

Explosive Bomb

Benefit: The alchemist’s bombs now have a splash radius of 10 feet rather than 5 feet (see Throw Splash Weapon). Creatures that take a direct hit from an explosive bomb catch fire, taking 1d6 points of fire damage each round until the fire is extinguished. Extinguishing the flames is a full-round action that requires a Reflex save. Rolling on the ground provides the target with a +2 to the save. Dousing the target with at least 2 gallons of water automatically extinguishes the flames.

Does that fire damage stack with successive explosive bombs?

As an example: an alchemist has Fast Bombs and I toss multiple explosive bombs on a target in a single round. On the following round are there multiple d6 fire damages being taken by the target due to the multiple hits from the previous round?

[Darkstrom]

Mok wrote:

Alchemists with the Explosive Bomb discovery:

PRD wrote:

Explosive Bomb

Benefit: The alchemist’s bombs now have a splash radius of 10 feet rather than 5 feet (see Throw Splash Weapon). Creatures that take a direct hit from an explosive bomb catch fire, taking 1d6 points of fire damage each round until the fire is extinguished. Extinguishing the flames is a full-round action that requires a Reflex save. Rolling on the ground provides the target with a +2 to the save. Dousing the target with at least 2 gallons of water automatically extinguishes the flames.

Does that fire damage stack with successive explosive bombs?

As an example: an alchemist has Fast Bombs and I toss multiple explosive bombs on a target in a single round. On the following round are there multiple d6 fire damages being taken by the target due to the multiple hits from the previous round?

I don't think it stacks. "Catching on Fire" in the rules is a flat 1d6/round AFAIK.

[Mok]

Darkstrom wrote:

I don't think it stacks. "Catching on Fire" in the rules is a flat 1d6/round AFAIK.

Thanks, this kind of stuff is always buried somewhere.