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Author Topic:   Penetrol for polishing fiberglass
SpeedBump posted 04-05-2004 08:09 PM ET (US)   Profile for SpeedBump   Send Email to SpeedBump  
I am rubbing out the interior blue gel coat of my Nauset. I have just finished w/1500 grit wet/dry paper and have a nice uniform and smooth but dull finish. I have applied a coat of penetrol and wiped it dry on a small area to see how the fibergalss comes up and it is a really nice uniform color with great shine.

How does Penetrol hold up to the elements? Is it better than waxing or can one wax over it to bring up the shine more?

If penetrol must be applied annually does it build up and then have to be chemically removed like a varnish would?

Suggestions on its use would be appreciated.

tarbaby posted 04-06-2004 12:29 AM ET (US)     Profile for tarbaby  Send Email to tarbaby     
Penetrol is good to put on a hull if you want to sell the boat. Your boat will look new for about a week but the shine will just not last. It sure does look great when you put it on though. There is no substitute for polishing. Penetrol is a great "trick" that people and marinas use to fool people to sell ugly boats. It makes even the chalkiest hull look good.......but not for the long haul. Go ahead and wax your boat. You will be happier with the results.
Bigshot posted 04-06-2004 03:09 PM ET (US)     Profile for Bigshot  Send Email to Bigshot     
It lasts pretty long, greta for non-skid. It wears off like wax but takes longer. Try it on an area and wax the rest, see for yourself what avenue you will take next year. If you wax, you will need to strip the wax before penetrolling it.
SpeedBump posted 04-06-2004 09:13 PM ET (US)     Profile for SpeedBump  Send Email to SpeedBump     
Did some additional internet searches on the use of penetrol and found two articles that did not give high marks on the longterm use/durability of a penetrol finish.
Spent 1/2 the day rubbing the gel out with 3-M cleaner and wax then top coated this with Colinite, power buffed and wow!! Smooth as a baby's bottom and shines like a new boat. It is so slick that it would be dangerous to sit on the forward locker you just slide around.

Had some day light left so I finally got around to installing my new Mills Bimini. Very easy installation and it looks great. Fits like a glove and has plenty of head room. Will followup with a seperate post on this.

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