So what exactly is floor blushing and what causes it.
Epoxy floor blushing.
As noted before amine blushing is the result of the amine in the epoxy hardener reacting with carbon dioxide and moisture.
The cause is most likely due to a side chemical reaction of moisture humidity in the air interacting with a curing agent.
Floors that are 55 degrees or lower will greatly affect the drying time of the epoxy.
More technically what you re dealing with is amine blushing.
Ambient cured epoxy sometimes appears sticky tacky and less glassy and smooth on the surface when compared to oven cured samples.
A cold surface can also.
Basically an epoxy resin blushing creates a waxy bi product that sits on the surface of the finish.
Blushing and in some cases blooming are chemical reactions 3 the chemical component of the epoxy binder system which causes the blushing or blooming is in the curing agent.
Blushing floors have a kind of sickly yellowy colour to them certainly not the look you want on a newly installed floor.
Note that we offer basic no blush marine epoxy with fast slow and regular curing agents and it also includes bubble breakers for a more perfect finish.
Low molecular weight primary amines are typically hygroscopic and tend to react with atmospheric carbon dioxide and moisture to form an ammonium carbamate according to.
How to avoid amine blushing.
Make sure the floor is at least 60 degrees for a minimum of.
Jpcl december 2005 pce 41 what causes blushing and blooming.
Mas traditional marine epoxy does blush when fully cured.
Epoxy bonding surfaces must be free of any.
But epoxy floors can be very expensive when an unskilled applicator leaves a finished product in a mess.
This phenomenon is known to epoxy chemists as amine blush or amine bloom.
Blush and bloom can be removed but this will add time and costs to the c o a t i n g f looring job.
Non blushing marine epoxies do not require washing or sanding between epoxy coats or top coating with other paints.
Aside from the fact that blushing mars the finish it also prevents an issue for any other application thereafter whether you are applying another layer of epoxy or some other type of finishing product.
Traditional marine epoxy system.
To understand that you need to know a little bit about epoxy floors.
Cause adhesion issues with your project.
2 days prior to application.
Epoxy floors are cost effective over years of trouble free service provided a skilled applicator who is aware of common problems and makes sure to correctly prepare the surface applies them properly.
It can also hurt the physical performance properties of the epoxy.
Some amines are more prone to the problem than others and as a rule of thumb those that aren t soluble in water have less risk.
Delamination of epoxy flooring com pounds.
Blushing and blooming are chemical reactions 3 the chemical component of the epoxy binder system that causes the blushing or blooming is.
