yeh i think i remember this product,it was suppose to "re-claim/renovate"what we call premiur pink-sure you';ve seen em the frames are beige/redy/pinky in colour-these were a poor quality pvc that dis colours in the sun,i beleive renovit is a solvent type thing you apply to the frame,if and only if it is a solvent steer well clear of this the other solvents we have used in the past are banned by most councils now as they are heavier than air and has in the past caused illness's(babies,pets etc)not trying to scare anyone but when i started this thing i did look at renovate and such products and used to use such a solvent at work-can't use it now h&s issues.
what it does is melt the top surface of the pvc and "reveals" the lower cleaner surface underneath-if it does that to pvc what does it do to your lungs/fingers?