Buy a janitor a beer
Hi Cal,
I have Polyglow on my boat now. The previous owner applied it. It's coming off in the cockpit but looks great on the hull.
I have a fellow oday 39 owner I consider my mentor. He has had his boat from day one and both of our boats were once sitting side by side on the production floor. He is a great resource. He HATES Pollyglow and threatens to disavow me if I use it. He's a great sailor winning his share of races with his 39 but a lousy janitor. That's why he hates Polyglow.
If you search the net on Polyglow you will read someone claiming the stuff is no more than Acrylic floor sealer. Duh... whats wrong with something that is designed to keep a gloss something that is walked on and abused every day? How often do you see spiked heals at the marina?
Water based Acrylic coatings have long been known for good UV resistance and incredibly tough durability.
Here is my review of the pros and cons I found on the web using my 40 years experience as a paint process engineer and running a paint company as a filter.
Adhesion issues: This is completely a problem of bad prep. Don't use rubbing compound to prep the surface unless you are sure it does
not have have silicones or waxes. It's safer to chemically clean the surface or wet sand. Use the water break test. Spray pure water onto the prepped surface. It should wet out completely soaking into the micro pores of the gelcoat. Look for water breaks (areas where the water repels or beads up) hit them again with cleaner. What cleaners to use? First either wetsand or use Polyglow's Polyox to remove all oxidation. Then Ployglows cleaner or read the MSDS and find something similar. Your local janitor will have a great cleaner that he uses prior to coating the floor.
Contamination trapped under the Polyglow. Really? this is a problem people blame Polyglow?
The same guy complained about a lump in the new carpet he laid. He also mentioned a reward for his missing cat.
Life expectancy:
I read Practical sailor's review of all restoration products. Polyglow is one of the best. About 3 years. I understand that you can extend it by recoating each year. I'll likely do that on the hull. Topsides are just to easy to strip and start over. I'm going into this fully expecting to strip the Polyglow the third year. I feel I'll still be ahead with labor saving over compounding/waxing. My Janitor says I'm pushing it but I figure UV will be less on the vertical sides of the hull. One side facing South may get redone sooner.
Looks splotchy as it ages:
See my previous post. The lazarrette seat looked terrible. It took a minute to clean up using a scouring pad and Krazy Clean. (An alkaline solution with Butyl Celusolve as a solvent)
Here is a product recommended by my favorite janitor:
http://www.floorscrubbers.com/store/Qstore.cgi?CMD=011&PROD=001546 I checked the MSDS and ist is very similar to Krazy clean. He also says there is a Johnson wax product that works just as well. Some strippers only strip wax, Look for a comment like (Also works on most Acrylic sealers)
Here is a big issue:
These strippers are caustic. They can burn skin at full strength. I plan to spray on the solution using a bug sprayer and let it work. Then scrub with a diluted mixture. I found that ist is very easy to see the film lifting up as it is scrubbed. I might use a orbital buffer with a scotch pad on it.
I must add this: Short of reapplying gelcoat (25 years later), wet sanding and applying a true Clearcoat (as in automotive clearcoat) is by far the best way to restore a gelcoat. It should last the life of the boat. Anyone with a boat on a trailer should consider Earl Scheib.
http://www.earlscheibautopainting.com/Other-Locations.html.
Our small lake here in Wisconsin is still open. My neighbor is mounting wheels on his iceboat.