How to glass - Page 2 - 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 > General Interest Forums > Gear & Maintenance
 Not a Member? 


Like Tree4Likes
Reply
 
LinkBack Thread Tools
  #11  
Old 04-10-2013
davidpm's Avatar
Senior Member
 
Join Date: Oct 2007
Location: Madison
Posts: 3,485
Thanks: 130
Thanked 33 Times in 26 Posts
Rep Power: 7
davidpm is on a distinguished road
Re: How to glass

That is what I'll do then
__________________
The lesson from the Icarus story is not about human failing.
It is a lesson about the limitations of wax as an adhesive.
If you have an engineering problem solve it.
Reply With Quote Share with Facebook
  #12  
Old 04-10-2013
Bene505's Avatar
Glad I found Sailnet
 
Join Date: Jul 2008
Posts: 3,442
Thanks: 3
Thanked 33 Times in 32 Posts
Rep Power: 7
Bene505 will become famous soon enough Bene505 will become famous soon enough
Re: How to glass

I suggest wetting it with pure epoxy first, if you are going to use any additives during your project.

Regards,
Brad
__________________
Posts you might like:
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.
. .
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
  #13  
Old 04-11-2013
davidpm's Avatar
Senior Member
 
Join Date: Oct 2007
Location: Madison
Posts: 3,485
Thanks: 130
Thanked 33 Times in 26 Posts
Rep Power: 7
davidpm is on a distinguished road
Re: How to glass

The reason I asked is that I've heard that cheap plywood will telegraph through the epoxy unless it has a layer of cloth.
__________________
The lesson from the Icarus story is not about human failing.
It is a lesson about the limitations of wax as an adhesive.
If you have an engineering problem solve it.
Reply With Quote Share with Facebook
  #14  
Old 04-12-2013
SloopJonB's Avatar
Senior Moment Member
 
Join Date: Jun 2011
Location: West Vancouver B.C.
Posts: 10,327
Thanks: 55
Thanked 34 Times in 32 Posts
Rep Power: 3
SloopJonB will become famous soon enough
Re: How to glass

Quote:
Originally Posted by davidpm View Post
The reason I asked is that I've heard that cheap plywood will telegraph through the epoxy unless it has a layer of cloth.
It can but it's not like paint - just put on another coat or put some filler in it.
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
I, myself, personally intend to continue being outspoken, opinionated, intolerant of all fanatics, fools and ignoramuses, deeply suspicious of all those who have "found the answer" and on my bad days, downright rude.
Reply With Quote Share with Facebook
  #15  
Old 04-12-2013
downeast450's Avatar
Tundra Down
 
Join Date: Jan 2008
Location: Seal Harbor, Maine
Posts: 1,213
Thanks: 25
Thanked 14 Times in 14 Posts
Rep Power: 7
downeast450 is on a distinguished road
Re: How to glass

Agreed! It probably doesn't require "glass" for protection or structural reasons.

If you do want to involve "glass" in the layer covering an irregular surface there is another option. Round all saw cut edges with a rasp. Fiberglass mat can be teased apart to a very thin "fabric" layer. Very thin is the key. One layer or filaments is very thin. Mat is chopped glass filaments held together with a seizing. When I want some fiberglass to conform to a tight radius, to add a matrix for abrasion or structural effect, I tease apart some mat and "dab" small pieces into / onto the surface with a stiff "white chip" brush. The brush is applying the resin at the same time. Addin a bit of filler to the resin helps. It is tedious but if you add small amounts of mat in several layers you can get to conform to 90 degree corners. Once a layer of this resin rich mat covering is in place a light open weave fabric can be laid on if it is done while the resin is still tacky. Pay attention to the direction of the weave in the fabric and use small pieces added on the bias. You will end up building some thickness so allow for that. Avoiding sanding is the plan. Having everything ready before you start helps, too.

Down
Reply With Quote Share with Facebook
  #16  
Old 04-12-2013
SloopJonB's Avatar
Senior Moment Member
 
Join Date: Jun 2011
Location: West Vancouver B.C.
Posts: 10,327
Thanks: 55
Thanked 34 Times in 32 Posts
Rep Power: 3
SloopJonB will become famous soon enough
Re: How to glass

If you decide to use mat, remember that most of it is held together with a styrene soluble binder. Epoxy will not dissolve it - if you are using epoxy you must get mat that is specified for that purpose - it uses a different binder.
Faster and downeast450 like this.
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
I, myself, personally intend to continue being outspoken, opinionated, intolerant of all fanatics, fools and ignoramuses, deeply suspicious of all those who have "found the answer" and on my bad days, downright rude.
Reply With Quote Share with Facebook
  #17  
Old 04-12-2013
downeast450's Avatar
Tundra Down
 
Join Date: Jan 2008
Location: Seal Harbor, Maine
Posts: 1,213
Thanks: 25
Thanked 14 Times in 14 Posts
Rep Power: 7
downeast450 is on a distinguished road
Re: How to glass

Quote:
Originally Posted by SloopJonB View Post
If you decide to use mat, remember that most of it is held together with a styrene soluble binder. Epoxy will not dissolve it - if you are using epoxy you must get mat that is specified for that purpose - it uses a different binder.
It is correct that there are different binders. It really won't make any difference if you are using the very thin layer I am suggesting for this application. It would be an important consideration if you were trying to get a full thickness layer of mat to conform.

Thanks for keeping it accurate JonB.

Down
Reply With Quote Share with Facebook
  #18  
Old 04-12-2013
Senior Member
 
Join Date: May 2007
Posts: 593
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 7
Siamese is on a distinguished road
Re: How to glass

You didn't say why you want to glass it. Can we assume it's for rot resistance?

Also, if you're concerned about the appearance (you said you were concerned about "telegraphing" of the cheap plywood through the mat) why not use a piece of mahogany? Prime it and paint it.

Heck of a lot easier and it will absolutely look good when you're done.
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
Wombat through a Looking Glass tdw Gear & Maintenance 5 07-01-2011 08:06 PM
new glass 2 redhead78 Gear & Maintenance 2 05-05-2010 09:09 AM
Cal 29 glass dieselboy Cal 14 02-02-2010 04:58 PM
New Glass 2 chuckg5 Gear & Maintenance 2 10-21-2007 07:28 PM
New Glass 2 sailor1105 Gear & Maintenance 0 12-31-2006 12:38 AM


All times are GMT -4. The time now is 04:25 AM.

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