Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 04-10-2008, 04:07   #1
Registered User

Join Date: Mar 2008
Location: The Sea
Boat: Coronado 30 - Lady Eliza
Posts: 241
Images: 11
Water proof levels of canvas?

Is Sunbrella waterproof? Are all marine canvases not?

As mentioned in another thread I put the bimini up today- used a tarp since I only ordered the sewing machine yesterday and the Sunbrella today...

Anyway, the tarp ends about halfway over the dodger which is made of some unknown canvas type. It seeps. An hour or so of light rain and I've got stead drippage coming through. It looked to be in solid shape- not threadbare- no holes...
"It is never too late to be who you might have been." -George Eliot
Jack Long is offline   Reply With Quote
Old 04-10-2008, 06:24   #2
Eternal Member
imagine2frolic's Avatar

Join Date: Feb 2008
Location: Las Brisas Panama AGAIN!
Boat: Simpson, Catamaran, 46ft. IMAGINE
Posts: 4,508
Images: 123
It's cloth, and cloth will weep no matter how tight the weave. Get some waterproofing spray...............i2f
SAILING is not always a slick magazine cover!
BORROWED..No single one of is as smart as all of us!
imagine2frolic is offline   Reply With Quote
Old 04-10-2008, 09:17   #3
Moderator Emeritus
GordMay's Avatar

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 32,216
Images: 240
After removing & cleaning the “canvas, you should use spay-on that contains a fluoropolymer formula to waterproof the fabric.
Do not use a waterproofing treatment that contains silicone
Spray the product on the canvas evenly and let it dry. Re-spray in a cross-hatch pattern (@ 90 degrees), let dry, and re-install.

Cotton-based canvas actually has some natural waterproofing, in that the fibres swell up, closing the weave, when wet - something akin to the planking on a wooden boat.

See also Sunbrella care instructions:
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"

GordMay is online now   Reply With Quote


Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Proof of vat paid kenpatt Europe & Mediterranean 24 17-05-2017 02:49
Dyeing Canvas Jack Long General Sailing Forum 5 05-05-2011 11:00
Sales Taxes - Proof of being out of state?? Dan1 Dollars & Cents 25 16-09-2008 21:57
Lake Water Levels Down GordMay Great Lakes 65 08-10-2007 14:15
canvas deck?? capn_nik Construction, Maintenance & Refit 1 03-05-2004 04:19

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 03:04.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.