discoloured coals on real flame gas fire

[colin H]

Hello there ,
I purchased a real flame gas fire around a year ago . The fire works and looks great , but the imitation coals have become a bit discoloured and slightly grey in appearance . they look to made from a black coated fireproof foam material similar in appearance to polysteyrene . Does anybody know of a way to restore the coals to their original condition - is there any type of spray paint I could use on them ? any help would be greatfully received .
Regards , Colin .

 

[denso13]

There are a few retailers, one example here

 

[breezer]

but coal on an open fire does turn grey

 

[colin H]

cheers mate . I didn`t know such a thing existed

 

[breezer]

google is a wonderful thing