Reply
 
Thread Tools Search this Thread
 
Old 22 July 2016, 08:47   #1
Member
 
ZacOps's Avatar
 
Join Date: May 2013
Posts: 21
Asking for help with MEK alternative in California

Greetings all.

I am replacing a sun damaged CF number plate that is faded and brittle.


http://www.rib.net/forum/members/167...icture7016.png

The instructions call for using MEK (methyl ethyl ketone) or Acetone. I have some Xylene / Toluene replacement. It is very slow work cleaning the tub from the old glue.


http://www.rib.net/forum/members/167...icture7017.png

Painters tap (blue) and gaffer tap (grey duct tape) would not stick to the tube when attempting to mask off the area.


http://www.rib.net/forum/members/167...icture7018.png


http://www.rib.net/forum/members/167...icture7019.png


http://www.rib.net/forum/members/167...icture7020.png


http://www.rib.net/forum/members/167...icture7021.png

This is about an hour of work, and I would like to speed it up. I will add a heat gun and 220 grit sandpaper and see.

Does anyone have some suggestions on a chemical alternative that will act more like MEK (which I think I can't get in California)?

Thanks,

ZacOps


http://www.rib.net/forum/members/167...icture7025.jpg
__________________

__________________
ZacOps is offline   Reply With Quote
Old 22 July 2016, 09:56   #2
Member
 
Country: USA
Town: S. Carolina
Boat name: D560
Make: Avon
Length: 5m +
Engine: Merc 100hp
Join Date: Aug 2013
Posts: 876
The boat is hypalon. Just sand/grind the old glue off with a dremel. Easiest way...

Wipe with alcohol (denatured or rubbing) and let it evaporate for 5-10 min before you try to apply masking tape.

Your "VOC free" solvent is basically Acetone. Call a professional paint supply store, they should carry both MEK and Toluene.
__________________

__________________
Richard
Gluing geek since 2007
office888 is offline   Reply With Quote
Old 22 July 2016, 10:02   #3
Member
 
Country: USA
Town: CA
Make: Zodiac RIB-P
Length: 7m +
Engine: Suzuki 250
Join Date: Aug 2010
Posts: 1,087
MEK is not available for purchase in CA to regular people as far as I can tell. You can order toluene from Amazon

I don't think it illegal per se but the air quality boards have made it impossible to sell or something. I think the commercial fuel company by me sells MEK by the barrell or truckload but i don't think you can get a quart.

Jason
__________________
Bigtalljv is offline   Reply With Quote
Old 22 July 2016, 10:03   #4
Member
 
Country: USA
Town: S. Carolina
Boat name: D560
Make: Avon
Length: 5m +
Engine: Merc 100hp
Join Date: Aug 2013
Posts: 876
Quote:
Originally Posted by Bigtalljv View Post
MEK is not available for purchase in CA to regular people as far as I can tell. You can order toluene from Amazon

I don't think it illegal per se but the air quality boards have made it impossible to sell or something. I think the commercial fuel company by me sells MEK by the barrell or truckload but i don't think you can get a quart.

Jason
Call a store that does industrial paint supply. Two part catalyzed paints. Like a Sherwin Williams "automotive" store?
__________________
Richard
Gluing geek since 2007
office888 is offline   Reply With Quote
Old 22 July 2016, 10:05   #5
Member
 
Country: USA
Town: CA
Make: Zodiac RIB-P
Length: 7m +
Engine: Suzuki 250
Join Date: Aug 2010
Posts: 1,087
Asking for help with MEK alternative in California

Nope, they don't have it either. I tried all the automotive supply and industrial supply.

It's really not available. Not illegal to have I don't think but can't be sold.
__________________
Bigtalljv is offline   Reply With Quote
Old 22 July 2016, 10:53   #6
Member
 
ZacOps's Avatar
 
Join Date: May 2013
Posts: 21
Air Quality Control, more like un-fair quality control!

Office888 and Bigtalljv,

Yes, she is hypalon.

Thanks, this is why I love this forum.

I will attack it tonight when the temperature cools off and we'll see how I go.

I am assuming that I should also get a really good respirator/mask if I find some MEK? Is it really worth the trouble? Will it almost instantly dissolve glue and not hurt the hypalon?

Have you ever seen CF numbers curl up like that and crack? Starboard side shows some ware but I am leaving that for another season.
__________________
ZacOps is offline   Reply With Quote
Old 22 July 2016, 11:21   #7
ncp
Member
 
ncp's Avatar
 
Country: USA
Town: California
Make: Avon 5.4m Searider
Length: 5m +
Engine: Yamaha 90
Join Date: Aug 2011
Posts: 1,154
My local hardware store stopped selling it about 4 years ago. But I bought some in LA last year. Its still around...
__________________
ncp is offline   Reply With Quote
Old 22 July 2016, 13:06   #8
Member
 
Country: USA
Town: S. Carolina
Boat name: D560
Make: Avon
Length: 5m +
Engine: Merc 100hp
Join Date: Aug 2013
Posts: 876
Quote:
Originally Posted by ZacOps View Post
Office888 and Bigtalljv,

Yes, she is hypalon.

Thanks, this is why I love this forum.

I will attack it tonight when the temperature cools off and we'll see how I go.

I am assuming that I should also get a really good respirator/mask if I find some MEK? Is it really worth the trouble? Will it almost instantly dissolve glue and not hurt the hypalon?

Have you ever seen CF numbers curl up like that and crack? Starboard side shows some ware but I am leaving that for another season.
Sanding is the best way to remove old chloroprene glue. Methylene chloride works great for scrubbing off any old glue, but I think it is also difficult to find in California. I know it is restricted in Europe.

I still prefer sanding for hypalon/csm/neoprene surfaces...they need to be sanded anyways, and I'd prefer to deal with elastomer/glue dust over chemical fumes.

Your number plates are made by boatnumberplates.com...they carry a 10 year warranty. Maybe contact the company and see if you can get some replacements? They're made of PVC. For hypalon/csm/neoprene boats, they sew a backing pad of black neoprene on so it bonds to the boat easily.

If your number plate is grey with no backing pad, then it was straight PVC...not ideal for a hypalon boat, unless cross-glued properly.
__________________
Richard
Gluing geek since 2007
office888 is offline   Reply With Quote
Old 23 July 2016, 12:27   #9
Member
 
ZacOps's Avatar
 
Join Date: May 2013
Posts: 21
PVC with a Backing

Richard,

Yes, boatnumberplates.com replaced them both at no cost. Took about a week and did it all through email.



Old one and new ones are PVC backed with "hypalon" type material. Above you can see how the PVC just disintegrated. Garaging the boat from now on.

You mentioned sanding. Do I need to be lightly sanding the tubes each season? I use 303 to keep a nice clean look (no chalkyness).

Any suggestions on how to prevent that PVC from weathering? A boat cover obviously.

Thanks,

ZacOps
__________________
ZacOps is offline   Reply With Quote
Old 23 July 2016, 19:49   #10
Member
 
ZacOps's Avatar
 
Join Date: May 2013
Posts: 21
Click image for larger version

Name:	ImageUploadedByRIB Net1469321179.933389.jpg
Views:	45
Size:	53.4 KB
ID:	114612Click image for larger version

Name:	ImageUploadedByRIB Net1469321210.602786.jpg
Views:	43
Size:	86.7 KB
ID:	114613

The drill worked great. 200 grit and elbow grease did the rest. Sanding block worked okay. Cooler temperatures made it easier.
__________________

__________________
ZacOps is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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




Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 19:38.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.