Been there, done that
RaggTopp vs. 303
Both work well.
Raggtop is recommended by the manufacturer. I contacted him directly and asked if there was any difference in performance over time between Raggtop and 303. He referenced the specific standardized testing that they do for quality control and said on each occasion when I had an exchange with him that he recommends Raggtop.
I apply it every 6 months and it works great.
If you like 303, use it. Its great too, but since I dont know why the manufacturer only recommends Raggtop based on his in house testing, I will continue to use Raggtop exclusively.
Read the previous thread and make up your own mind. I will wait.
Reproduced for your reading pleasure
I got this response from Haartz
Thanks for contacting The Haartz Corporation.
In reply to your inquiry about the RaggTopp Cleaner and Protectant system, Haartz continuously studies the market and internally evaluates various products for performance. The below bullet points are a overview.
• Comparison testing according to proprietary internal Haartz soiling/cleaning methodology has shown Raggtopp to be among the best cleaners on the market.
• RaggTopp protectant has been shown to offer comparable spray rating performance when tested according to AATCC Test Method #22.
o The above has been achieved without the use of silicone in the protectant.
• The formulations of the RaggTopp cleaner and protectant have been shown to have no negative effects upon the long-term durability of the topcover. Both avoid the use of organic solvents that can damage the fabrics and combining layers between.
• RaggTopp cleaner & protectant have also been shown to have no negative effect upon materials adjacent to the convertible top (plastic/glass window, paint, etc.)
I hope that you find this information of value.
THE HAARTZ CORPORATION
To review the test methodology