The limited liability to the plaintiff to which Krobar subjected itself by agreement with Bluescope did not expand beyond Krobar's own perceptions as to the relative causal contribution made to Mr Daniels' total fibre burden in the course of his employment with Krobar in comparison with the causal contribution made in the course of his employment with Bluescope.
30. In Roberts v James Hardie and Coy Pty Limited (DDT 15 of 1997 unreported 22nd August 1997) I apportioned liability exclusively by reference to causation (culpability being equal), an approach approved by the Court of Appeal in James Hardie and Coy Pty Ltd v Roberts (1998) 47 NSWLR 425.
31. In Wallaby Grip Ltd v State Rail Authority (NSW) & Ors (2001) 21 NSWCCR 650 at 664, Priestley JA considered the contributions Hardies and Wallaby Grip, both suppliers of asbestos products, should make to a cross claimant Ampol, who employed the plaintiff at a later time than another tortfeasor, SRA, which was also responsible for the plaintiff's damage. He there said:
It was against that background that (the trial judge) had to consider Ampol's contribution claim against Hardie and WG, each of whom he had found, in my opinion correctly, was an "other tortfeasor" within s5(1)(c). In considering the comparative responsibility of the three tortfeasors, Ampol, Hardie and WG for the same damage and then deciding what amount it would be just and equitable for Hardie and WG to contribute to Ampol, it was then open to the trial judge to take into account his view of the extent of Ampol's material contribution to Mr Rayner's mesothelioma in comparison to that of the other tortfeasors. This is what Curtis J did in James Hardie and Co Pty Ltd v Roberts and which this court approved of on appeal: (1999) 47 NSWLR 425. In my respectful opinion Curtis J should have done the same thing in the present case.