Remove Varnish from Teak Caulk - Page 3 - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance
 Not a Member? 


Like Tree7Likes
Reply
 
LinkBack Thread Tools
  #21  
Old 02-26-2014
Senior Member
 
Join Date: Feb 2010
Location: Narragansett Bay
Posts: 8,846
Thanks: 10
Thanked 131 Times in 117 Posts
Rep Power: 6
Minnewaska will become famous soon enough Minnewaska will become famous soon enough
Re: Remove Varnish from Teak Caulk

Quote:
Originally Posted by GMFL View Post
What would make you think the varnish would crack?......

.....You could make an argument that the varnish won't adhere to the caulk...
You are right, fresh real varnish (is that what you're using?) is flexible and will endure the different adhesion and expansion rates for a bit.

However, it just has to give up the ghost on the caulk before the wood.

Not that you're inclined, but I agree not to dig out the caulking after you varnish. It would leave an edge to the varnish on each side of the caulk that would allow water beneath. I also suspect the varnish wouldn't cut away neatly either.

Back to removal of the remnants from the caulk, have you considered a 2 part acid teak cleaner? I'm not sure if it will remove the varnish bits, but you many want a good cleaning of the teak before you reseal anyway. Maybe worth a shot.
__________________

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

Jeanneau 54DS

In the harsh marine environment, something is always in need of repair. Margaritas fix everything.
Reply With Quote Share with Facebook
  #22  
Old 02-26-2014
RichH's Avatar
Senior Member
 
Join Date: Jul 2000
Location: Pennsylvania
Posts: 2,820
Thanks: 9
Thanked 73 Times in 66 Posts
Rep Power: 15
RichH will become famous soon enough
Re: Remove Varnish from Teak Caulk

Quote:
Originally Posted by Minnewaska View Post
Back to removal of the remnants from the caulk, have you considered a 2 part acid teak cleaner? I'm not sure if it will remove the varnish bits, but you many want a good cleaning of the teak before you reseal anyway. Maybe worth a shot.

Suggestion for trial #1
Water is the ultimate destroyer of any topside coating, even Awlgrip and LPU urethanes.
• cover a small area with a thick layer of paper toweling
• cover the toweling with plastic sheeting and SEAL the edges of the plastic with tape, etc.
• open a small area of the 'sealing' and add WATER plus a few drops of dishwashing detergent, re-seal.
• allow to SOAK for several days/weeks, re-wet as needed. Soak time is important.
• remove the covering, etc. and scrub the caulk lines.


Suggestion #2 for a trial in a small area:
A. obtain trisodiumphosphate-TSP crystals .... from a paint hardware store BUT be sure that is REAL TSP and not 'substitute' TSP.
B. Mix up the TSP with hot water and so that the mixture has EXCESS crystals in the bottom of the 'bucket'.
C. Apply the TSP solution to the surface and immediately cover with a sheet of plastic film. Allow to soak for several hours under the sheet. You may have to intermittently re-wet the TSP/teak.
D. Scrub (only) the varnished caulk lines with a moderately soft brush, dont scrub the teak.

The TSP is highly caustic and most times will loosen / break the adhesion of paint/varnish on wood if there is sufficient 'soak time'. However, the TSP will also extract the tannins in the UV affected surface layer of the teak ... and produce a diarrhea-like brown 'slurry' as it dissolves the 'dead' sun destroyed teak surface layer; but, will leave the 'unaffected' teak undissolved.
To restore the natural 'hue' of the teak once extracted with TSP: rinse several times to remove the 'goo' (dissolved 'dead' teak), rinse again, let the surface thoroughly dry out, then 'bleach' the teak with oxalic acid (paint/hardware stuff - crystals in pint containers ... mix as you did with TSP)

Obviously, TSP and Oxalic are 'chemicals' so you may not be able to obtain such in states that have totalitarian environmental statutes vs. 'consumer usage' of even simple 'chemicals'. You can get these online if you absolutely need to.
• TSP should NEVER be mixed with oxalic acid .... you MUST thoroughly rinse between each chemical application.
• Wear protection: goggles, gloves, plastic apron, etc. Oxalic acid quickly absorbs through your skin and reforms as sharp crystals in your kidneys ... you MUST wear 'protection' to keep it off your skin.
Classic30 likes this.

Last edited by RichH; 02-26-2014 at 10:31 AM.
Reply With Quote Share with Facebook
  #23  
Old 02-26-2014
Senior Member
 
Join Date: Dec 2006
Location: Beacon, NY
Posts: 1,934
Thanks: 15
Thanked 65 Times in 62 Posts
Rep Power: 8
miatapaul is on a distinguished road
Re: Remove Varnish from Teak Caulk

Quote:
Originally Posted by GMFL View Post
Curious, why would you suggest that? All common sense (and practice) would suggest otherwise.
The other advantage of doing it this way is that since you are loosing the anti slip properties of the teak by varnishing it, if you re caulk afterwords you will at least have some anti slip properties from the caulk. While you say no one is going to step on it or they will get thrown off the boat, you don't want that happening accidentally. Not to mention it would look much better as the caulk won't have the varnish and will have it's natural finish.

Looking at the surface I would not let it go grey, but I don't think I would be varnishing it either as it looks like it would be subject to too much wear if you actually sail the boat, as people do step on the combings, and drop winch handles and what not. So I would use something easier to touch up, like Cetol with clear gloss over it. It would be less slippery than a standard gloss varnish as well and easy to repair. Since I don't like redoing varnish every so often and prefer to spend the time sailing, I would take the easy route out and use a modern sealer.

And if you don't know what the previous owner used on it, then I would not be so confidant that the new varnish will stick to the caulk so well. He might have used a product no longer made, or something different than what you have available.
Reply With Quote Share with Facebook
  #24  
Old 05-08-2014
GMFL's Avatar
Large Member
 
Join Date: Jun 2010
Location: Newport Beach, CA
Posts: 275
Thanks: 5
Thanked 2 Times in 2 Posts
Rep Power: 5
GMFL is on a distinguished road
Re: Remove Varnish from Teak Caulk

Ok. It's been a few months but I thought I'd give my results.

I just ended up masking off the teak, sanded lightly with 220 and wiping it down with acetone. Worked perfectly. The acetone brightened the caulk up to a bright black too.

While I was trying to heat the varnish in the caulk it was just making the caulk soft as well making things harder for myself. Makes sense looking back

On another note. This thread took a turn on my original question to whether I should re-varnish the area. It was strongly suggested that I don't. Although stubborn then, after rethinking, I've had second thoughts. I'm not going to....for now. It does look really good bare, if I can keep it clean. I'll see.

On a third note. I varnished the other pieces with interlux Schooner. Only 5 coats so far but it is very dark compared to the bare teak. I'm thinking of stripping it back down and going with a clear varnish.

Anyone with thoughts on clear? I'll start on other thread on that I guess, I'll post some pictures then too.

Thanks, again, for everyone's input.
Reply With Quote Share with Facebook
  #25  
Old 05-09-2014
Senior Member
 
Join Date: Feb 2010
Location: Narragansett Bay
Posts: 8,846
Thanks: 10
Thanked 131 Times in 117 Posts
Rep Power: 6
Minnewaska will become famous soon enough Minnewaska will become famous soon enough
Re: Remove Varnish from Teak Caulk

Sounds great! To clean the bare teak, get a scotch pad and rub it down weekly. Never, ever use a brush, whose bristles will get down inside the grain and remove the softer parts, causing premature wear. Teak loves straight salt water, so if you use that before you wash the decks, all the better.

I have also found a general cleaning product called, TufEnuf, to do a great job on teak. No need to buy fancy teak cleaners and this product can be used to clean anything. If you spray it on dry teak, let it sit for a few minutes and scrub with a scotch pad and rinse thoroughly, it comes out looking nearly new. However, I only do it once per year, as I don't like being too harsh to the bare wood.
GMFL likes this.
__________________

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

Jeanneau 54DS

In the harsh marine environment, something is always in need of repair. Margaritas fix everything.
Reply With Quote Share with Facebook
  #26  
Old 05-09-2014
JimsCAL's Avatar
Senior Member
 
Join Date: May 2007
Location: Glen Cove, NY
Posts: 2,389
Thanks: 1
Thanked 34 Times in 33 Posts
Rep Power: 8
JimsCAL is on a distinguished road
Re: Remove Varnish from Teak Caulk

Quote:
Originally Posted by GMFL View Post
On a third note. I varnished the other pieces with interlux Schooner. Only 5 coats so far but it is very dark compared to the bare teak. I'm thinking of stripping it back down and going with a clear varnish.

Anyone with thoughts on clear? I'll start on other thread on that I guess, I'll post some pictures then too.
Thanks for the update.

I just finished a similar project. Stripped the teak toerails and other teak trim (used Citristrip, heatgun for the tough spots, then sanding) and then Cetol in natural teak. Not sure yet if I'll put Cetol gloss on top yet. The previous coating was Epifanes Rapidclear, put on by the previous owner. Definitely a lighter look. Depends on what you like. I'm happy with the look of the Cetol natural teak - nice medium dark color very similar to amber varnish.
GMFL likes this.
Reply With Quote Share with Facebook
  #27  
Old 05-09-2014
christian.hess's Avatar
Senior Member
 
Join Date: Sep 2013
Location: el salvador
Posts: 3,688
Thanks: 99
Thanked 143 Times in 139 Posts
Rep Power: 1
christian.hess is on a distinguished road
Re: Remove Varnish from Teak Caulk

Quote:
Originally Posted by Minnewaska View Post
Sounds great! To clean the bare teak, get a scotch pad and rub it down weekly. Never, ever use a brush, whose bristles will get down inside the grain and remove the softer parts, causing premature wear. Teak loves straight salt water, so if you use that before you wash the decks, all the better.

I have also found a general cleaning product called, TufEnuf, to do a great job on teak. No need to buy fancy teak cleaners and this product can be used to clean anything. If you spray it on dry teak, let it sit for a few minutes and scrub with a scotch pad and rinse thoroughly, it comes out looking nearly new. However, I only do it once per year, as I don't like being too harsh to the bare wood.
straight saltwater daily and brush AGAINST the grain...never with...its that the destroys the teak quite quickly
GMFL likes this.
__________________
Finally sailed!!!!!!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

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

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Islander 36 refit still going on...

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #28  
Old 05-09-2014
Senior Member
 
Join Date: Feb 2010
Location: Narragansett Bay
Posts: 8,846
Thanks: 10
Thanked 131 Times in 117 Posts
Rep Power: 6
Minnewaska will become famous soon enough Minnewaska will become famous soon enough
Re: Remove Varnish from Teak Caulk

Quote:
Originally Posted by christian.hess View Post
straight saltwater daily and brush AGAINST the grain...never with...its that the destroys the teak quite quickly
This is the correct method. However, I've often wondered if the grain direction dates back pre-scotchpad days. It makes sense that individual bristles would be an issue. It would seem the rounded loops would not get too far into the grain either way. Nevertheless, I stick with cross grain where possible.
christian.hess likes this.
__________________

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

Jeanneau 54DS

In the harsh marine environment, something is always in need of repair. Margaritas fix everything.
Reply With Quote Share with Facebook
  #29  
Old 05-09-2014
christian.hess's Avatar
Senior Member
 
Join Date: Sep 2013
Location: el salvador
Posts: 3,688
Thanks: 99
Thanked 143 Times in 139 Posts
Rep Power: 1
christian.hess is on a distinguished road
Re: Remove Varnish from Teak Caulk

its what I was told from old timers when I restored my old h28...

they call them deck brushes for something! jajaja

there are different kinds for sure some better than others

we had a very thick yet short and relatively pliable brush and every day I would go at it, especially at anchor...id shower at the same time

after our big trip I belt sanded and caulked the decks and it looked REALLY GOOD

the trick also to prevent getting the grooves is also to fine sand them every so often so that you expose sealed wood under...the finer the better since the wood will be less porous if that makes any sense

once you see grey very grooved wood it means you have to take off a lot more for the wood to survive longer
__________________
Finally sailed!!!!!!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

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

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Islander 36 refit still going on...

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Teak deck caulk Minnewaska General Discussion (sailing related) 9 01-25-2014 01:17 PM
Epoxy or caulk to glue down teak cockpit seats? copacabana Gear & Maintenance 1 12-10-2012 07:46 AM
Trim teak caulk Minnewaska Gear & Maintenance 3 07-26-2011 10:20 AM
How to remove varnish & sealant from non-skid? mrybas Gear & Maintenance 2 04-19-2010 07:37 AM
Teak varnish? saurav16 Gear & Maintenance 8 09-14-2007 11:04 AM


All times are GMT -4. The time now is 04:34 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.