Reply
 
Thread Tools Search this Thread Display Modes
 
Old 10-30-2017, 01:33 PM   #1
Guru
 
Tom.B's Avatar
 
City: Cary, NC
Country: USA
Vessel Name: Skinny Dippin'
Vessel Model: Navigator 4200 Classic
Join Date: Jul 2009
Posts: 5,646
Messing with Marine Tex

Hey Y'all,

I have about 20 vertical screw holes in my cockpit that need filling. Marine Tex would be perfect since I can't seem to get West Systems thick enough for vertical holes. Last week I bought some for a different project (scratches in dinghy bottom) to just see how it worked and found it to be a real mess to work with. Getting it out of the little glass jar and mixing it with the hardener was a huge pain. the stuff is so thick that it sticks to everything. I was using one of those black stir sticks from West Systems and a piece of cardboard to try and mix it on. It suck to the stick and would not want to come off the stir stick easily (where I wanted it to be) and basically fought me the whole time. Any tips on working with this stuff?

Once I finally got some mixed, it worked well filling the holes, but dag-gum, if there is an easier method to mix it, I would love to hear it.

Thanks!
Tom-
__________________
Advertisement

__________________
2000 Navigator 4200 Classic
(NOT a trawler)
Tom.B is offline   Reply With Quote
Old 10-30-2017, 01:36 PM   #2
Guru
 
HopCar's Avatar
 
City: Miami Florida
Vessel Name: Possum
Vessel Model: Ellis 28
Join Date: Aug 2011
Posts: 4,266
WEST G-10 in a caulking tube might be your answer.
__________________

__________________
Parks Masterson
HopCar is offline   Reply With Quote
Old 10-30-2017, 01:47 PM   #3
Senior Member
 
boathealer's Avatar
 
City: North Carolina
Country: US
Vessel Name: SCOUT
Vessel Model: Great Harbour N37
Join Date: Aug 2017
Posts: 436
If you can get to the underside, you can tape up the holes and then the epoxy doesn't need to be as thick. The tape needs to seal REALLY well, though, as thin epoxy will get through just about any crack.

Alternatively, you can also squirt some hot glue or something else down in the bottom of the hole to seal it off, then top off with epoxy.

I have used both of these methods in the past.
boathealer is offline   Reply With Quote
Old 10-30-2017, 01:54 PM   #4
Guru
 
HopCar's Avatar
 
City: Miami Florida
Vessel Name: Possum
Vessel Model: Ellis 28
Join Date: Aug 2011
Posts: 4,266
It’s WEST Six 10 not G10 that comes in a caulking tube. Sorry.
__________________
Parks Masterson
HopCar is offline   Reply With Quote
Old 10-30-2017, 02:01 PM   #5
Guru
 
kthoennes's Avatar
 
City: Sioux Falls, South Dakota
Country: USA
Vessel Name: Xanadu
Vessel Model: Mainship 37 Motor Yacht
Join Date: Oct 2013
Posts: 972
I use this stuff for filling screw holes and other little cracks. I mix it up and then use a craft syringe to squirt it in neatly. It's liquid enough too when first mixed that it lays down nicely into screw holes or cracks. The only problem is that while it goes on bright white, in my experience it quickly turns an ivory color, but it's got excellent adhesion and it's almost as hard and durable as the original gelcoat. Once you lay a very fine line on a crack or ding or fill a screw hole, you'd need a hammer and chisel to get it off.

(Sucking up a puddle of it into a craft syringe is not that easy, you have to go really slowly, but that's a nice neat way to apply it.)
Attached Thumbnails
Click image for larger version

Name:	81xuI+j4iJL__SL1500_.jpg
Views:	98
Size:	115.4 KB
ID:	69847  
kthoennes is offline   Reply With Quote
Old 10-30-2017, 02:20 PM   #6
Guru
 
caltexflanc's Avatar
 
City: North Carolina for now
Country: USA
Vessel Name: Small Incentive
Vessel Model: Boston Whaler 130 Sport
Join Date: Aug 2011
Posts: 4,889
That Loctite stuff is great. I liked this JB Weld product too.

https://www.jbweld.com/products/marineweld-twin-tube

Using one of those syringes makes the job easy and more thorough, though I did do a snap hole with the Loctite right out of the tube.

Timely thread as I have some of this type of work coming up on the Whaler.
__________________
George

"There's the Right Way, the Wrong Way, and what some guy says he's gotten away with"
caltexflanc is offline   Reply With Quote
Old 10-30-2017, 02:29 PM   #7
Guru
 
alormaria's Avatar
 
City: Trenton
Country: USA
Join Date: Apr 2012
Posts: 1,104
Practice, practice, practice. Now that you have met the enemy you know how to handle it. Use gloves, disposable EVERYTHING, paper towels and rags.

If it weren't for Marine Tex I wouldn't have a boat.
__________________
Al Johnson
34' Marine Trader
"Angelina"
alormaria is offline   Reply With Quote
Old 10-30-2017, 03:21 PM   #8
Guru
 
Nomad Willy's Avatar
 
City: Concrete Washington State
Country: USA
Vessel Name: Willy
Vessel Model: Willard Nomad 30'
Join Date: Oct 2007
Posts: 15,698
We used 3M Filler. Think it’s an epoxy.

We used it as the yard where we were on the hard used it extensively. It’s green in color and easy to use. We filled several hundred holes in our cabin over 10 years ago and not one hole has been a problem since.

Edit;
Oh I’ve got a question that Parks or sombody probably knows .... is Marine Tex and JB Weld essentially the same? I suspect JB has a filler or similar whereas MT does not but it’s pure speculation.
__________________
Eric

North Western Washington State USA
Nomad Willy is online now   Reply With Quote
Old 10-30-2017, 03:23 PM   #9
Guru
 
City: gulf coast
Country: pinellas
Join Date: Jun 2014
Posts: 2,716
a bunch of popsicle sticks or wood shims split lengthwise one for each jar and other to scrape off the stuff. Scoop equal size blobs of each and scrape off with the seconds clean sticks. Stir with another clean stick and you are all set.

Filling blind holes can be difficult so push it in with a toothpick or it will be air bound. Some tape over the hole will ease clean up
bayview is offline   Reply With Quote
Old 10-30-2017, 03:23 PM   #10
Guru
 
psneeld's Avatar
 
City: ACIW
Country: USA
Vessel Name: Freedom
Vessel Model: Albin 40
Join Date: Oct 2011
Posts: 19,124
I just grab 2 flat blade screwdrivers, paper towels, marine tex, toothpicks, and a piece of cardboard.

Big screwdriver opens paste and scoops out 5/6 of necessary filler, little screwdriver dollops hardner, the other 1/6.

Wipe off litttle screwdriver, put away. Mix batch with large screwdriver and apply if right tool, if not, scrape off with right tool or toothpick. Wipe clean, put away.

Use toothpicks to fill holes by dabbing or get a wad and shove in hole, break off and cut below hole level with razor knife. Top off hole with another dab.

Leave toothpick on whats left of marine tex on cardboard for about 5 hrs to see how hard and strong that batch was.

Find marine tex much easier to use than 2 part epoxy liquids...but it is way more expensive.
psneeld is offline   Reply With Quote
Old 10-30-2017, 04:03 PM   #11
Guru
 
Tom.B's Avatar
 
City: Cary, NC
Country: USA
Vessel Name: Skinny Dippin'
Vessel Model: Navigator 4200 Classic
Join Date: Jul 2009
Posts: 5,646
Quote:
Originally Posted by HopCar View Post
Itís WEST Six 10 not G10 that comes in a caulking tube. Sorry.


I have an unopened tube of this. I bought it to fill the snap holes on the deck from old covers we donít have. But I wasnít sure if it will do vertical holes. I canít get to the back, so it is going to be a bit of a trick which is why Marine Tex looked appealing.

Thanks for the tips yall.
__________________
2000 Navigator 4200 Classic
(NOT a trawler)
Tom.B is offline   Reply With Quote
Old 10-30-2017, 04:05 PM   #12
Enigma
 
RT Firefly's Avatar
 
City: Slicker?
Country: Bumpkin?
Join Date: Oct 2007
Posts: 12,431
Greetings,
I noticed Mr. kt mentioned hobby syringes (post #5) and the inherent difficulty in filling them. I have found that rather than attempting to suck up the "whatever"...it is much easier to pull the plunger out of the barrel and pour or spoon the "whatever" into the open barrel. When filled to your liking, simply push the plunger back into the barrel and start your applications. Yes, you WILL get some spewing out of the nozzle initially but that is easily wiped off to start afresh.
__________________
RTF
RT Firefly is offline   Reply With Quote
Old 10-30-2017, 04:08 PM   #13
Guru
 
Lou_tribal's Avatar
 
City: Quebec
Country: Canada
Vessel Name: Bleuvet
Vessel Model: Custom Built
Join Date: Jan 2016
Posts: 3,364
Thing with trying to get epoxy thick enough is to use the correct additive for the correct usage.
Question for you, the holes you want to fill are in your cockpit but in what material? FB? Wood?

L
Lou_tribal is online now   Reply With Quote
Old 10-30-2017, 04:16 PM   #14
Guru
 
Tom.B's Avatar
 
City: Cary, NC
Country: USA
Vessel Name: Skinny Dippin'
Vessel Model: Navigator 4200 Classic
Join Date: Jul 2009
Posts: 5,646
Quote:
Originally Posted by Lou_tribal View Post
Thing with trying to get epoxy thick enough is to use the correct additive for the correct usage.
Question for you, the holes you want to fill are in your cockpit but in what material? FB? Wood?

L


They are in fiberglass. I have 105/205 plus 410 faring and 403 adhesive currently in my kit.
__________________
2000 Navigator 4200 Classic
(NOT a trawler)
Tom.B is offline   Reply With Quote
Old 10-30-2017, 04:45 PM   #15
Guru
 
Lou_tribal's Avatar
 
City: Quebec
Country: Canada
Vessel Name: Bleuvet
Vessel Model: Custom Built
Join Date: Jan 2016
Posts: 3,364
I use 406 (silica) as a multi purpose filler and have got good results. For one dose of epoxy/hardener I use 2 to 3 table spoon of 403 to get a thick enough consistency. In wood I use wood flour of the same wood.
I use EXP system epoxy but should be the same with West System.

L


L
Lou_tribal is online now   Reply With Quote
Old 10-30-2017, 05:36 PM   #16
Guru
 
Comodave's Avatar
 
City: Au Gres, MI
Country: US
Vessel Name: Never Say Never
Vessel Model: President 41 DC
Join Date: Jul 2015
Posts: 4,167
I use West epoxy all the time. I can thicken it enough to hold on vertical surfaces. I use 404 if I think it needs more strength. Just keep adding your filler until it gets thick enough. If I use it really thick, I usually brush some unthickened epoxy on first to help the thick stuff bond to the fiberglass.
Comodave is offline   Reply With Quote
Old 10-30-2017, 05:39 PM   #17
Guru
 
Sailor of Fortune's Avatar
 
City: Saint Augustine, Fl.
Country: Port of St Augustine ,FL
Join Date: Sep 2009
Posts: 2,533
Hull and deck putty. Fills holes , cracks,fairs. Use above or below waterline. Polyester based, just like your fiberglass boat. Many companies make it.
__________________
Jack (Steve?)
Sailor of Fortune is offline   Reply With Quote
Old 10-30-2017, 05:48 PM   #18
Guru
 
City: Fairport
Country: United States
Join Date: Jan 2017
Posts: 1,509
The first question might be ďdo i need to sand/fair the cured patch?Ē
If so definitely avoid the jb welds, marine tex and the likes. With the right additives West will do anything y want. And per above post, if above water line consider polyester, even one part stuff
diver dave is online now   Reply With Quote
Old 10-30-2017, 05:50 PM   #19
Senior Member
 
HenryD's Avatar
 
City: Jacksonville, FL
Country: USA
Vessel Name: Seven Tenths (is for SALE)
Vessel Model: Mirage / Great Harbour 47
Join Date: Dec 2012
Posts: 449
I use a piece of wood that I wrap in aluminum foil as a mixing board. I then use popsicle sticks to get a blob of MarineTex and pour a bit of the hardner on it. Mix, and then use a clean popsicle stick to apply. Then use another popsicle stick to scrape flush.
It hardens like a brick. When we repaired over 60 holes from prior owners art and decorating, we put painters tape around each hole first. This made clean up easier and fast. Do not leave the MarineTex too proud as sanding it proves a lot of work.
HenryD is offline   Reply With Quote
Old 10-30-2017, 05:59 PM   #20
TF Site Team
 
FlyWright's Avatar
 
City: California Delta and SF Bay
Country: Sacramento, CA, USA (boat in Vallejo)
Vessel Name: FlyWright
Vessel Model: Marshall Californian 34 LRC
Join Date: Apr 2008
Posts: 12,072
Just shoot some 5200 on the holes and be done with it!
__________________

FlyWright is offline   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





All times are GMT -5. The time now is 04:15 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012