Joining Acrylics - International Association of Penturners
     International Association of Penturners
Pens for Service Members
Support The IAP

Go Back   International Association of Penturners > Welcome to! > Site Help, Tips, How-To
  Forgot Password
Register FAQ Members List Search Today's Posts Mark Forums Read
Site Help, Tips, How-To Get and give help for using the FORUM SOFTWARE.

Logged on members can hide ads!

Welcome to!

You've found the home of The International Association of Penturners. You are currently viewing our site as a guest, which gives you limited access to view discussions, photos, and library articles.

Consider joining our community today. You'll have full access to all of our content, be able to enter our contests, find local chapters near you, and post your questions and share your experience with our members all over the world.

Membership is completely free!!

If you have any problems with the registration process or your account login, please contact us.

LinkBack Thread Tools Display Modes
Old 09-18-2017, 01:11 PM   #1 (permalink)
Join Date: Nov 2015
Location: Lago Vista, Texas 78645
Posts: 27
Photos: 0

Default Joining Acrylics

I turn a lot of acrylics. I recently purchased blanks, one of which is stars and the other is stripes. I want to "join" them to make a single stars and stripes blank. I have a relatively simple set up (lathe, band saw, disc sander, drill press. I know the key has to be to have the ends exactly square in order (for what I would think is CA) is applied so that it looks seamless. I don't have a fixture for holding a parting tool on the lathe to square the end. I do not have a fixture that will guarantee holding the blank square to the disc sander. Is there a suggested trick in making sure this works?

Thanks much for your help
mikefoye is offline   Reply With Quote Top
Old 09-18-2017, 01:52 PM   #2 (permalink)
Join Date: May 2017
Location: PDX, OR
Posts: 23
Photos: 0


there's a couple of different types of acrylic adhesives out there. the ones I use go by the brand name of Weld-On and are widely used by the aquarium industry. Weld-On 4 is a clear, water thin solvent cement that softens the surfaces that are to be joined. It evaporates quickly and gives fast bond strength. The other I'm familiar with is Weld-On 40 and is a two part acrylic adhesive. It's optically clear, incredibly strong but it's noxious stuff. It has a pot life of about 20 minutes. There may be other adhesives that work but the above are specifically designed for acrylic.
This is a 70" tall piece I made out of hundreds of layers of acrylic using Weld-On 4.
Don't know why my photos show up sideways.
Attached Thumbnails

Last edited by jcjc; 09-18-2017 at 01:56 PM.
Likes: (2)
jcjc is online now   Reply With Quote Top
Old 09-18-2017, 02:17 PM   #3 (permalink)
Join Date: Nov 2015
Location: Lago Vista, Texas 78645
Posts: 27
Photos: 0

Default Joining Acrylics

Thanks for the advice on adhesives. I am concerned on squaring up the blanks perfectly before gluing them together. I would then have a good blank to then center drill for the brass tube.
mikefoye is offline   Reply With Quote Top
Old 09-18-2017, 06:26 PM   #4 (permalink)
Join Date: May 2014
Location: Wisconsin
Posts: 215
Photos: 0


I have done what you want to attempt. Today I use my disc sand to square the ends. However when I first tried this I used a pen blank trimming kit sold by Penn State. I clamped the blanks in the sled and used the supplied saw. I used ca to glue them together however I would recommend epoxy. After I applied the ca I clamped them together the long way and let dry for 24 hours. After you turn your blank you cannot detect that you used two blanks. Quite a few people were surprised when I told them this. I hope this helps.

Over the years I have learned that there are only three types of people in this world....those who can count and those who can't.
studioseven is offline   Reply With Quote Top
Old 09-18-2017, 06:36 PM   #5 (permalink)
Join Date: Jul 2007
Location: TX, NM or on the road
Posts: 1,221
Photos: 0


If it is Plexiglas, back when I was in school in the early 1960's, we used acetone to dissolve the Plexiglas to glue it together. It resulted in a clear joint. Does anyone know if acetone will dissolve the cast resin blanks?
dogcatcher is offline   Reply With Quote Top
Old 09-18-2017, 08:15 PM   #6 (permalink)
Huzzah's Avatar
Join Date: Nov 2005
Location: Brunswick, Ohio, USA.
Posts: 320
Photos: 0


I've done this as well and start by cutting each piece to length, then drill the holes for the tube. I square up the ends to be glued with a sanding disk on a face plate and transfer punch in the tailstock. I then use epoxy to both glue the tubes in and the pieces together, all at the same time. I then put a piece of parchment paper around the blank and clamp it on the ends to keep the pieces tight, the tube keeps them aligned.

One other pointer I'll give you to save you some aggravation is to make sure you trim the stars so that you have all whole stars where it meets the striped blank. It looks real bad when there is half of a star right next to a stripe, found that one out the hard way.
Likes: (1)
Huzzah is offline   Reply With Quote Top
Related Content
Logged on members can hide ads


Thread Tools
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 On
Pingbacks are On
Refbacks are On

All times are GMT -5. The time now is 08:26 AM.

Powered by vBulletin® Version 3.7.6
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0

Content Copyright © 2003-2016 by, LLC; All Rights Reserved
Terms Of Service   Acceptable Use Policy