model glue

I'm using tamiyas glue. the regular and extra thin cement.

Does 5 min. Epoxy have a shelf life ? mine doesn't seem to be adhering as well as it used to.

Hi;

     Well, the question is this. How fast do you use up a bottle? I usually have about a fine sludge in the bottom in about a year. The comment about super glues is correct. I use it a lot and I've noticed when I open the refill bottles( Very Large) I have about six months to a year of shelf life.  T.B.

model lover

I'm using tamiyas glue. the regular and extra thin cement.

 

I find the Tamiya bottled cement to last several years. I've yet to had one go bad. Hard to say exactly how many years though.

In my experience, when plastic glue goes bad, you'll know it. It will simply fail to hold parts together.

Jay Jay

Does 5 min. Epoxy have a shelf life ? mine doesn't seem to be adhering as well as it used to.

 

I have had problems with epoxy in recent years even when it was not old, as far as sticking to styrene.  Someone said on this forum awhile back that the kit makers may be using different styrene than in the past.  Don't know about epoxy chemistry, but it does seem that way.  When I first had problems I blamed release agents, but I washed and cleaned kits thoroughly and it didn't make a difference.

model lover

How long does model glue last before it gets old? How many years does it last?

 

modelmaker66

Other than tube glue, I can't recall it ever going bad.

I have a tube of Pactra non-toxic glue from about 1979/80 which is still quite liquid and most likely usable (as much as the early citrus-based non-toxic glue is considered usable).

I have found that with Tamiya liquid glues that if you do not screw The top tightly, during the warmer summer months some of the volitile components will evaporate.   This leaves the less volitile components.  These less volitile materials are not as efficient in melting plastic

yes, Tamiya liquid glue can go bad over time if not kept tightly capped

I store my unopened CA glues in the refrig if I do not need them.

Rob

I have some really old "Ross" model glue in a tube.  I know I have had it about 25 years..  It spent 10+ in an attic, and looks to still likely work.  Granted it is the citrus like glue.  If my boys go to build something I will hand them that rather than CA glue or the liquid cements.

I have some Testors Liquid Cement in that interstingly shaped bottle.  I have had nearly as long.  I do randomly use it.  I don't know if it is as strong as when I purchased it.  I got out of models mostly for 20+ years and have been doing a little here and there again the last few years.

CA glue certainly dries up.  If sealed properly it can last over a year, maybe 2 but I won't generally bet on it.  

I recently purchased some Tamya Estra Thin Cement for the first time, so I can't say how long it may last.  I really like the appliator brush, the ease of dropping it back in and picking it up.

I also keep a tube of model glue around.  It can last a fair while if sealed properly.  My previous one was a Testors cement tube and it lasted quite a while.

model lover

I'm using tamiyas glue. the regular and extra thin cement.

 

As long as you put the cap back on right away, and screw it tight, it will last a long time- at least a few years, unlike CA.

I now use testors glue instead of tamiyas glue, it is much stronger. Though I like tamiys brush on feature. testors is cheaper to.