Thread Tools
Old Mar 27, 2012, 08:58 PM
BOZINATOR is offline
Find More Posts by BOZINATOR
In The Sorrano Triangle
BOZINATOR's Avatar
Discussion

how do you cut and glue sintra?


What is the best way to cut and glue the sintra pvc foam. I have ordered a small batch of 1mm, 2mm, and 3mm for making the houses on my 1/24 scale tugs and would like to do it the correct way the first time out.
Help would be good
Thanks in advance
jim
Sign up now
to remove ads between posts
Old Mar 27, 2012, 09:05 PM
modelerman is offline
Find More Posts by modelerman
Ed Croughwell
modelerman's Avatar
Quote:
Originally Posted by BOZINATOR View Post
What is the best way to cut and glue the sintra pvc foam. I have ordered a small batch of 1mm, 2mm, and 3mm for making the houses on my 1/24 scale tugs and would like to do it the correct way the first time out.
Help would be good
Thanks in advance
jim


A good ole # 11 X Acto and CA of your choice. I like medium gap filling
Old Mar 27, 2012, 09:09 PM
desron48 is offline
Find More Posts by desron48
ADM. 48TH FLEET
a good sharp knife.....and weld-on 16....iv'e tried super glue but it don't hold up in time....

joe (who loves sentra)
Old Mar 27, 2012, 09:34 PM
patmat2350 is offline
Find More Posts by patmat2350
RingTheBellsThatStillCanR ing
patmat2350's Avatar
You can cut through... But also try score-and-snap.
CA is good, but don't count on simple edge to edge gluing... Reinforce corners with gussets.
Old Mar 27, 2012, 09:55 PM
Tim B. is offline
Find More Posts by Tim B.
Registered User
Tim B.'s Avatar
Cutting like everyone here says, if you are going to "score and snap", make deeper cuts for thicker material before snapping.
This stuff is a bit soft ( as it is "expanded" PVC ) so if not cut well it will just fail in the location of the cut.
I have been using 5 minute Devcon ( after roughing the joint very well ) with high success.
When I am really concerned about strength I have been using testors model glue, it actually "attacks" the material then sets ( unlike other adhesives mentioned here ).
The assemblies in the pics are entirely of sintra and are staying together very well with the Devcon.
Last edited by Tim B.; Aug 16, 2016 at 02:50 PM.
Old Mar 28, 2012, 01:52 AM
CaptCB is offline
Find More Posts by CaptCB
Registered User
CaptCB's Avatar
Rough up the finish, and use thin CA, followed by Med. CA. And yes, the joints DO, hold up fine. I am running boats that have houses, and decks, made from PVC foamboard, that are 18+yrs old. I have never had a joint fail, and I only use gussets, where I really need the strength. I am the one that got Dumas, to go to it. CaptCB
Old Mar 28, 2012, 02:54 AM
BOZINATOR is offline
Find More Posts by BOZINATOR
In The Sorrano Triangle
BOZINATOR's Avatar
Thanks for all the help..Indeed!!

One more question If I might...How do you make the round houses..just like plywood or do you need to heat it up some, and is this where you need the braces to keep it's shape?
Thanks again
jim
Old Mar 28, 2012, 03:15 AM
more coffee is offline
Find More Posts by more coffee
Cheif Bottlewasher
more coffee's Avatar
I haven't used the stuff but I have some 2mm that I plan to plate a few decks and bulk heads,
Typically on the thinker stuff hot water is used..

In the mean time ,I'll let you know how it works with plywood and contact cement,I'll test some tomorrow.
Old Mar 28, 2012, 09:48 AM
Tim B. is offline
Find More Posts by Tim B.
Registered User
Tim B.'s Avatar
Quote:
Originally Posted by BOZINATOR View Post
Thanks for all the help..Indeed!!

One more question If I might...How do you make the round houses..just like plywood or do you need to heat it up some, and is this where you need the braces to keep it's shape?
Thanks again
jim
More Coffee is very right, hot water.
This stuff does have a memory so bending beyond the desired radius and allowing it to come back should work well for you using two and three mil. material.
Old Mar 28, 2012, 11:50 AM
Browndog is offline
Find More Posts by Browndog
Registered User
Browndog's Avatar
Quote:
Originally Posted by Tim B. View Post
Cutting like everyone here says, if you are going to "score and snap", make deeper cuts for thicker material before snapping.
This stuff is a bit soft ( as it is "expanded" PVC ) so if not cut well it will just fail in the location of the cut.
I have been using 5 minute Devcon ( after roughing the joint very well ) with high success.
When I am really concerned about strength I have been using testors model glue, it actually "attacks" the material then sets ( unlike other adhesives mentioned here ).
The assemblies in the pics are entirely of sintra and are staying together very well with the Devcon.
Man you are a master with that stuff
Old Mar 28, 2012, 05:33 PM
Navy2000 is offline
Find More Posts by Navy2000
Registered User
A have a couple of small table saws one being the one that you can buy from Micro Mark and the other is about the same design but slightly larger. I use CA med for glueing and reinforce where needed.

Duane
Old Mar 28, 2012, 09:33 PM
Kcal is offline
Find More Posts by Kcal
Registered User
Score and snap 180 grit to fit and then med CA, agreed.
Old Mar 28, 2012, 09:38 PM
CaptDH is offline
Find More Posts by CaptDH
GET BACK IN THE SHOP!!!!!!
CaptDH's Avatar
Sintra loves medium CA. I have never had a bond problem. Not even in one of these...

D
Old Mar 28, 2012, 09:42 PM
Prins Willem is offline
Find More Posts by Prins Willem
Old wreck in Milwaukee
Prins Willem's Avatar
I am wondering since sintra is PVC have any of you tried using PVC solvent cement? I would think it would be like using Weld On 3 with Acrylic.
Old Mar 28, 2012, 10:45 PM
jjac is offline
Find More Posts by jjac
I'm tired.....
jjac's Avatar
Quote:
Originally Posted by Prins Willem View Post
I am wondering since sintra is PVC have any of you tried using PVC solvent cement? I would think it would be like using Weld On 3 with Acrylic.
I have, it's a no go. CA is the best product to use.


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion Dymond D47 servo, Which version do you have on hand, how can you tell??? TDboy Hand Launch 5 Apr 21, 2012 03:26 AM
Question Where do you get your trim designs and how do you test them? dedStik The Builders Workshop 16 Mar 15, 2012 04:32 PM
Discussion How do you set up DR/expo on realflight 6? Dr.JJ Simulators 7 Feb 23, 2012 06:20 AM
Discussion How do you use hot glue for long joints? chris1379 Foamies (Scratchbuilt) 30 Jan 10, 2012 05:07 PM
Discussion Gorilla glue white. what do you 'cut' it with? UlteriorModem The Builders Workshop 6 Oct 21, 2011 12:42 PM