Removing Penetrol - SailNet Community
 2Likes
  • 2 Post By bluesneaky
 
LinkBack Thread Tools
post #1 of 9 Old 04-06-2009 Thread Starter
Senior Member
 
Pamlicotraveler's Avatar
 
Join Date: Aug 2006
Location: Creedmoor NC
Posts: 682
Thanks: 17
Thanked 3 Times in 3 Posts
Rep Power: 11
 
Removing Penetrol

OK...My deck was chalky so I used Penetrol at the advice of some others. I did it last summer, first on a test spot. The test coat was amazing, so after a few weeks applied another coat to the deck, particularly to the nonskid. It restored the "luster of the nonskid."

Later it started to run, I think from hot sun, and looked like a I spilled varnish on the deck. There are also areas where it has acted as a dirt magnet and I have been unable to remove the dirt lines with intensive scrubbing. So the deck looks bad, but I think it is gradually coming off. But that could take another year.

Does anyone have some practical advice for removing the Penetrol and the dirt that has stuck to the deck where the Penetrol was. I should have taken pictures this weekend but didn't. I am assuming any kind of solvent would be bad for the gelcoat.

"Tell 'em I'm busy. I'm on a sails call."
Pamlicotraveler is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 9 Old 04-06-2009
Telstar 28
 
sailingdog's Avatar
 
Join Date: Mar 2006
Location: New England
Posts: 43,290
Thanks: 0
Thanked 18 Times in 14 Posts
Rep Power: 15
         
Power washing should remove a good portion of the dirt and penetrol. Any good solvent wash; like Interlux Fiberglass Prep Wash 202, will probably do a pretty good job of it too, since Penetrol is just a bunch of petroleum distillates.

Sailingdog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
sailingdog is offline  
Quote Quick Reply Share with Facebook
post #3 of 9 Old 04-06-2009
Member
 
Join Date: Aug 2003
Location: East Falmouth, MA
Posts: 68
Thanks: 1
Thanked 0 Times in 0 Posts
Rep Power: 14
 
I removed Penetrol from my hull prior to using Poliglow. The polyprep cleaner in the Poliglow kit easily removed the Penetrol.
Marc, NS26C, Westbrook, CT
marcberoz is offline  
Quote Quick Reply Share with Facebook
post #4 of 9 Old 04-06-2009 Thread Starter
Senior Member
 
Pamlicotraveler's Avatar
 
Join Date: Aug 2006
Location: Creedmoor NC
Posts: 682
Thanks: 17
Thanked 3 Times in 3 Posts
Rep Power: 11
 
Thanks both!! I will try the 202 and Powerwasher first and then the Poliglow prep.

Bottom line is I don't think I'll use Penetrol again on deck. That was a mistake.

"Tell 'em I'm busy. I'm on a sails call."
Pamlicotraveler is offline  
Quote Quick Reply Share with Facebook
post #5 of 9 Old 04-06-2009
Just another Moderator
 
Faster's Avatar
 
Join Date: Sep 2005
Location: New Westminster, BC
Posts: 18,321
Thanks: 129
Thanked 460 Times in 437 Posts
Rep Power: 10
     
Penetrol is generally a bad treatment - the results, while impressive initially, don't last long and the residual removal is, as you're finding, a pain.

If you're using the 202 please wear an appropriate respirator, and it may take several washes to be sure it's all gone.

Ron

1984 Fast/Nicholson 345 "FastForward"

".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
Faster is online now  
Quote Quick Reply Share with Facebook
post #6 of 9 Old 07-01-2016
Junior Member
 
Join Date: Jul 2016
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Re: Removing Penetrol

I had penetrol on an RV. Searched high and low for a way to get it off. Found the polyprep method but hated to spend that much. Finally found what poly glow is and in turn what takes it off. Red Max floor wax is the same as poli glow. Unfortunaletly that was discontinued but Zep Wet look floor wax is the same as well. Found RV users who had been using it for years and years with excellent results. Instructions the same as poly glow. Put a new coat on each year. Doesn't yellow as penetrol does. Doesn't gather dirt as it dries as penetrol does.

To take the penetrol, off use zep commercial heavy duty floor stripper concentrate straight or in a 50 50 mix (available at lowes $9). Takes about 2 min for the Zep to dissolve the old hardened penetrol. Pressure wash it off. Put 5 coat of wet look floor wax on and you have a clear uv resistant mirror gloss that will last about 5 years. Cost $25 at lowes for a gallon and you will have enough to share with all your freinds - a little goes a LONG way.
RichH and troy2000 like this.
bluesneaky is offline  
Quote Quick Reply Share with Facebook
post #7 of 9 Old 07-01-2016
Senior Member
 
RichH's Avatar
 
Join Date: Jul 2000
Location: Pennsylvania
Posts: 4,029
Thanks: 31
Thanked 219 Times in 206 Posts
Rep Power: 18
   
Re: Removing Penetrol

Penetrol is normally added to oil based paints and stains. Such oil based coatings and additives are usually 'lifted' with high concentration caustics; caustics usually do not affect polyester (gelcoat).
As a 'trial', Id get some TriSodiumPhosphate - TSP (paint store stuff), make a 'paste' of it with water, apply and cover with plastic wrap, let soak for a day or two, then scrub and see what happens. An alternative would be industrial strength detergents that contain Sodium Silicate: Tuff-e'Nuff, Roll-On, etc. You can also try "Easy OFF" oven cleaner - spray on, cover with plastic wrap, let soak, etc.
There are also 'caustic' (non organic solvent/MEK based) paint removers which should be compatible with polyester.

Penetrol is made by a division of PPG coatings. When all else fails ... :-) ...., I suggest you contact their Technical Support Services (800 number) listed on their Penetrol 'msds' at http://products.ppgac.com/products/cert/en/00405357

Last edited by RichH; 07-01-2016 at 06:30 PM.
RichH is online now  
Quote Quick Reply Share with Facebook
post #8 of 9 Old 07-01-2016
Senior Member
 
Join Date: Jul 2007
Location: Philadelphia
Posts: 1,119
Thanks: 0
Thanked 18 Times in 17 Posts
Rep Power: 10
 
Re: Removing Penetrol

This is an old thread and I would assume the boat is now clean, but while TSP is an excellent cleaner for prep before painting, the phosphate content may be too high for use in a marine environment.

I would suggest using a low phosphate laundry detergent; wet the surface, sprinkle on dry, use a wet scrub brush to turn the powder into a paste and scrub, scrub, scrub then rinse. Most laundry detergents are now low phosphate. Still not great for the marine environment but less bad.
Ulladh is offline  
Quote Quick Reply Share with Facebook
post #9 of 9 Old 07-02-2016
Wish I never found SN!
 
SimonV's Avatar
 
Join Date: Jul 2006
Location: Presently in Gove Harbour NT Australia
Posts: 2,106
Thanks: 9
Thanked 5 Times in 5 Posts
Rep Power: 11
 
Re: Removing Penetrol

Yes it is an old tread, but now I know there are other cheaper products the same as the expensive Poly Glow.

Simon
Ericson 39B.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

I love my boat
S/V GOODONYA
Brisbane
present location SE Asia doing a delivery.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

DELIVERY SKIPPER
Drinking Rum before 10am makes you a Pirate NOT an alcoholic
SimonV is offline  
Quote Quick Reply Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now



In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.


User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Removing propshaft from engine coupler belanich Gear & Maintenance 27 01-16-2009 11:25 PM
Removing a swaged fitting (stop) lfein Gear & Maintenance 2 06-10-2007 07:27 PM
Techniques for Removing Teak Decks Sue & Larry Buying a Boat Articles 0 11-24-2003 07:00 PM
Removing Thru-Hull Fittings Dan Dickison Gear and Maintenance Articles 0 04-23-2002 08:00 PM
Removing Old Names Tom Wood Buying a Boat Articles 0 11-05-2000 07:00 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome