View Full Version : Durable gap filling with Superglue and Baking soda
11-26-2009, 04:09 PM
Taught to me by a friend, this method allows you to fill gaps in minutes without having to wait 3+ hours for Apoxie Sculpt or other putties to cure. You can use talcum powder as well. Best of all this method makes a very durable fill, almost like cement.
11-26-2009, 04:25 PM
Very old technique, but thanks for posting for those who may not know. It is such a useful trick to have in your toolbox! Excellent!:D
Something like this just came up in a project so your timing couldn't have been more perfect for this posting!
- Z -
11-26-2009, 08:33 PM
I actually totally forgot about this technique! Thanks Jin.... I believe you were the one that told me about this years ago. Awesome Job!
11-26-2009, 08:41 PM
That's a useful old-school tip... I used to do that to fill in seam lines when I was putting together vinyl figure kits all the time.
11-26-2009, 11:17 PM
old school technique ? I myself thought that it's a break through new technique ! I seriously didn't know that you can do wonders with baking soda... Thumbs up for this ! :D
11-27-2009, 07:03 PM
Welcome guys! It was news to me too, proving that you learn something new every day no matter how long you've been doing something.
11-27-2009, 07:11 PM
I learned it ages ago from some old time aircraft and car model builders, they used to fill fuselage/hull/car body seams with it. Those cats know some tricks for sure man!
01-04-2010, 02:03 PM
Chalk me up on the "had no idea" list. Great for guys who hate sculpting like me! Great little filler!
01-05-2010, 12:51 AM
It's a great technique,I use it on my prop building quite frequently.
02-14-2010, 06:53 PM
News to me, but wouldn't using a super glue accelerant like Zip Kicker do the same thing just waaaay faster?
What kind of ratio / mix should be used for durability?
02-15-2010, 02:44 AM
wow thanx for your advice ;)
04-07-2010, 11:45 AM
That is awesome
04-11-2010, 07:21 PM
There is no end to the thanks I should give you for this tutorial. I've been using it since you put it out, and it has been the cure for oh so many headaches.
Just a little warning that the reaction between cyanoacrylate and baking soda is very exothermic (heat producing) and also produces noxious vapors, there is sometimes a puff of smoke, don't breath in the vapors. It really burns the eyes and nose.
04-27-2010, 08:58 PM
Wow I know i am late but Thanks for this and that figure will be the first i try it on
04-29-2010, 11:40 AM
Never knew, good stuff!
05-12-2010, 12:14 AM
Great way to fill in the seams after cracking open the iron man 2 6" war machine :)
05-12-2010, 01:11 AM
It also works with baby powder. It takes a little longer to dry but it makes a paste like substance that dries like cement.
05-15-2010, 11:43 AM
I saw a warning not to use baking soda, here's a qoute from starship modeler.
Eek. Not Baking Soda. This was an idea that was started some 20 years ago and has been deprecated by many a modeler. Baking Soda, even encased in superglue will absorb water from the air. Eventually, the baking soda will dissolve into a liquid solution and leak out of the glue joints. One A/C modeler described his fighter plane model as "foaming at the wing joints."
There are alternatives, albeit one I know for sure, micro-balloons, provides strength & bulk but do not have cure-accelerant properties. I have heard of experiments with off the shelf fine ground minerals (e.g. Talc) having dual bulk & accelerant properties, but do not know about their long term stability.
05-19-2010, 11:35 AM
09-16-2010, 01:10 PM
awesome thanks man!
10-27-2010, 12:05 PM
wow, never heard of this,this definetly makes doing model kits/ vehicles easier thanks
06-29-2011, 01:55 PM
Yeah I read that too about not mixing baking soda. thats why I never use this technique. Thanks for reminding it again maybe Ill try it one of my project and the baby powder for comparison. kudos!
09-20-2011, 01:41 AM
Ancient technique Re-discovered! this is vey useful! Thanks for sharing!