Reply
 
Thread Tools Search this Thread Display Modes
 
Old 07-02-2022, 09:31 AM   #1
Newbie
 
City: Whittier
Join Date: May 2022
Posts: 2
Bird poop

Just wondered if anyone had suggestions on getting bird poop off the sunbrella
cbarbato is offline   Reply With Quote
Old 07-02-2022, 11:19 AM   #2
Valued Technical Contributor
 
DavidM's Avatar
 
City: Litchfield, Ct
Join Date: Aug 2012
Posts: 6,320
Let me be a bit crude here to shed some light on the problem:

For a few years I kept my boat on a mooring a few hundred yards from the main marina. I tried adding the wind whirlygigs but the birds ignored them when it was calm. They would catch fish, clams, mussels, etc and bring them on top of my boat to eat. They would leave the fish and shellfish remains behind as well as their poop.

After a week or so in the sun this stuff would form a tough polymer like coating on the fiberglass. Fortunately I only had an aft bimini and they seemed to prefer the hard top to the sunbrella.

I tried everything including harsh solvents like acetone to get it off. The only thing that sort of worked was an electric disk sanding pad with a heavy coating of rubbing compound smeared on it. That would finally work through the coating without taking off too much gel coat.

I later found if I could stop it from happening by docking my boat at the marina, then after another few weeks in the sun it would begin to crack, crumble and turn to powder and come off much easier with just soap and water.

I realize that this won't help you with poop on the Sunbrella, but it's my story to tell, so I just told it.

David
DavidM is offline   Reply With Quote
Old 07-02-2022, 11:24 AM   #3
TF Site Team
 
Comodave's Avatar
 
City: Au Gres, MI
Vessel Name: Black Dog
Vessel Model: Formula 41PC
Join Date: Jul 2015
Posts: 16,289
First try soap and water. If that doesnít work you can use bleach. Sunbrella recommends bleach. They even had a sample in a jar of bleach at a boat show to demonstrate that the bleach would not damage the Sunbrella. Then use 303 protectant to replace the waterproofing and it will also help next time you have to clean the Sunbrella.
__________________
Boat Nut:
If you are one there is no explanation necessary.
If you arenít one, there is no explanation possible.
Comodave is offline   Reply With Quote
Old 07-03-2022, 09:55 AM   #4
Guru
 
City: Olympia
Vessel Name: Rendezvous
Vessel Model: Blue water 40
Join Date: Aug 2021
Posts: 576
If you do use bleach on the sunbrella , be sure of the stitching material first. Sunbrella is acrylic, and very good with bleach, but not every canvas shop uses bleach resistant thread. Iíve had to hand stitch things back together more than once when the thread gave out.
Bmarler is offline   Reply With Quote
Old 07-03-2022, 10:14 AM   #5
TF Site Team
 
Comodave's Avatar
 
City: Au Gres, MI
Vessel Name: Black Dog
Vessel Model: Formula 41PC
Join Date: Jul 2015
Posts: 16,289
I only use Tenara thread because it lasts as long as the fabric will. Never need to restitch.
__________________
Boat Nut:
If you are one there is no explanation necessary.
If you arenít one, there is no explanation possible.
Comodave is offline   Reply With Quote
Old 07-03-2022, 12:04 PM   #6
TF Site Team
 
koliver's Avatar
 
City: Saltspring Island
Vessel Name: Retreat
Vessel Model: C&L 44
Join Date: Nov 2007
Posts: 5,174
1. Prevention
2. Hard scrubbing with a strong brush and a stronger cleaner. Shell Busy, contains TSP, so works fairly well.
__________________
Keith
koliver is offline   Reply With Quote
Old 07-03-2022, 01:51 PM   #7
Guru
 
City: Newport, R.I.
Vessel Name: Hippocampus
Vessel Model: Nordic Tug 42
Join Date: Jul 2020
Posts: 2,162
Take it off and put it in the largest plastic mixing trough you can find. I bought one from a cement supplier. Put the canvas in it and let it soak. Then power wash off what you can with the 20 degree nozzle and a gentle touch. Then rinse. Then soak with baking soda and Dawn for a few days stirring occasionally. I use a wooden spatula to scrape more off. Also a nylon brush. Rinse and repeat until clean.
Find cormorant poop the worst. Like iron when dried. Acidic enough to discolor things. But soaking and agitation with a bit of patience gets guano off with a minimum of damage to your canvas. I dump a full bottle of the high tech fabric restorer in with the last rinsing soak. Expensive stuff but I think it does keep the fabric waterproof.
Hippocampus is online now   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not 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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Trawler Port Captains
Port Captains are TF volunteers who can serve as local guides or assist with local arrangements and information. Search below to locate Port Captains near your destination. To learn more about this program read here: TF Port Captain Program





All times are GMT -5. The time now is 05:15 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2022, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012