Poorboys Trim Restore is what I am using. On rubber that is older like yours I would suggest applying it heavy to start, let soak and then lightly buff. Then repeat again a few days later.
My 96 Camry's rubber looks as good as new from repeated treatments
Poorboys World Products
Poorboy’s has made a name around the show circuit for fantastic products at great prices! Its ever-growing popularity is due to word-of-mouth testimonies from novice detailers through auto enthusiasts about the brilliant results no matter what your level of expertise. You’re going to love Poorboy’s!
this product and the process defined by Beemerboy really works well so +1 on the PB Trim Restorer
Poorboys World Products
Poorboy’s has made a name around the show circuit for fantastic products at great prices! Its ever-growing popularity is due to word-of-mouth testimonies from novice detailers through auto enthusiasts about the brilliant results no matter what your level of expertise. You’re going to love Poorboy’s!
I would (and do ) choose PB's Natural Look over TR. I don't know if the biocides prevent mold and mildew, but NL has been the dominant product I've used on my vehicles rubber seals for some years now. The 303 protectant would be a good alternative.
Poorboys World Products
Poorboy’s has made a name around the show circuit for fantastic products at great prices! Its ever-growing popularity is due to word-of-mouth testimonies from novice detailers through auto enthusiasts about the brilliant results no matter what your level of expertise. You’re going to love Poorboy’s!