Legshield tool box rubber

Hi Guys
I am after the rubber that goes round on the legshield toolbox, I have got the correct rubber which when I did the dry build fitted perfectly, but since I had the spray done this no longer fits as perfect down the sides!
I have since been informed this is due to the legshields trying to bend ' outwards' when placed in the oven for drying!
All I know was fine in dry build now S*&^. Looked on the famous auction site on web, but cannot find the right stuff, want same profile just deeper rubber!
Regards
I am after the rubber that goes round on the legshield toolbox, I have got the correct rubber which when I did the dry build fitted perfectly, but since I had the spray done this no longer fits as perfect down the sides!
I have since been informed this is due to the legshields trying to bend ' outwards' when placed in the oven for drying!
All I know was fine in dry build now S*&^. Looked on the famous auction site on web, but cannot find the right stuff, want same profile just deeper rubber!
Regards