www.TK560.com Forum Index www.TK560.com
Vacuum Forming, Movie Prop, Sci-fi and GIjOE Forum
 
Log in to check your private messagesLog in to check your private messages

Log inLog in  RegisterRegister


Profile  Search  Memberlist  FAQ  Usergroups
mold help needed

 
Post new topic   Reply to topic    www.TK560.com Forum Index -> Vacuum Forming & General Stuff
View previous topic :: View next topic  
Author Message
glenn201
Newbie


Joined: 06 Apr 2013
Posts: 18
Location: Brazil IN

PostPosted: Thu Oct 08, 2015 6:22 pm    Post subject: mold help needed Reply with quote

ok i have made my molds from wood an coated it with bondo what can i use to seal the mold im vacuum forming polycarbonate
Back to top
View user's profile Send private message
kayaker43
Expert


Joined: 13 Jun 2007
Posts: 171

PostPosted: Tue Oct 13, 2015 7:32 pm    Post subject: Reply with quote

I use Polyester resin on wood/bondo molds but you can form over bare wood for a few parts. Many paints and varnishes get tacky when hot and you have to put messy mold releases on them. Use Polyester not epoxy resin, one coat to seal with a light sanding to knock off the nubs, then a second coat or more. This puts a hard shell over the wood that doesn't stick.
_________________
Doug Walsh
www.build-stuff.com
Hobby-Vac and Proto-Form machine plans

Also other plans books and videos for people who like to build things
Back to top
View user's profile Send private message Send e-mail Visit poster's website
kayaker43
Expert


Joined: 13 Jun 2007
Posts: 171

PostPosted: Tue Oct 13, 2015 7:32 pm    Post subject: Reply with quote

I use Polyester resin on wood/bondo molds but you can form over bare wood for a few parts. Many paints and varnishes get tacky when hot and you have to put messy mold releases on them. Use Polyester not epoxy resin, one coat to seal with a light sanding to knock off the nubs, then a second coat or more. This puts a hard shell over the wood that doesn't stick.
_________________
Doug Walsh
www.build-stuff.com
Hobby-Vac and Proto-Form machine plans

Also other plans books and videos for people who like to build things
Back to top
View user's profile Send private message Send e-mail Visit poster's website
glenn201
Newbie


Joined: 06 Apr 2013
Posts: 18
Location: Brazil IN

PostPosted: Thu Oct 22, 2015 6:07 pm    Post subject: Reply with quote

kayaker43 wrote:
I use Polyester resin on wood/bondo molds but you can form over bare wood for a few parts. Many paints and varnishes get tacky when hot and you have to put messy mold releases on them. Use Polyester not epoxy resin, one coat to seal with a light sanding to knock off the nubs, then a second coat or more. This puts a hard shell over the wood that doesn't stick.

do you have a link where i can by it at an thanks a lot
Back to top
View user's profile Send private message
kayaker43
Expert


Joined: 13 Jun 2007
Posts: 171

PostPosted: Fri Oct 23, 2015 10:13 am    Post subject: Reply with quote

http://www.westmarine.com/buy/west-marine--polyester-boaters-resin--P004_120_002_501

Its the most common type of resin used on every boat and corvette.
_________________
Doug Walsh
www.build-stuff.com
Hobby-Vac and Proto-Form machine plans

Also other plans books and videos for people who like to build things
Back to top
View user's profile Send private message Send e-mail Visit poster's website
glenn201
Newbie


Joined: 06 Apr 2013
Posts: 18
Location: Brazil IN

PostPosted: Fri Oct 23, 2015 7:54 pm    Post subject: Reply with quote

thanks for the help
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    www.TK560.com Forum Index -> Vacuum Forming & General Stuff All times are GMT - 6 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

phpBB "skin" by DewChugr


Powered by phpBB © 2001, 2005 phpBB Group