Francisco from Sea Shield has provided an excellent service for M/Y Strangelove 140 Feadship while wintering in San Diego. Some examples.... We had a large scratch on one of the windows. Sea Shield was able to polish it out and bring the glass back to its original condition. The Nano products have proven to be very good. I have tried many systems and found that it works the best for maintaining the paint work. Sea-Shield has also replaced some caulking; the quality of work was very good. I found Francisco very professional and presentable, and would recommend Sea-Shield to other yachts.