Epoxy Floor Blushing

Non blushing marine epoxies do not require washing or sanding between epoxy coats or top coating with other paints.

Epoxy floor blushing.

Mas traditional marine epoxy does blush when fully cured. Blushing floors have a kind of sickly yellowy colour to them certainly not the look you want on a newly installed floor. Ambient cured epoxy sometimes appears sticky tacky and less glassy and smooth on the surface when compared to oven cured samples. The cause is most likely due to a side chemical reaction of moisture humidity in the air interacting with a curing agent.

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. The surface will have an oily greasy feeling to it. 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. 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. Blushing and blooming are chemical reactions 3 the chemical component of the epoxy binder system that causes the blushing or blooming is. This means non blushing epoxy requires no messy wash downs in between coats. How to avoid amine blushing.

A cold surface can also. 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. It can also hurt the physical performance properties of the epoxy. Floors that are 55 degrees or lower will greatly affect the drying time of the epoxy.

Basically an epoxy resin blushing creates a waxy bi product that sits on the surface of the finish. To understand that you need to know a little bit about epoxy floors. Make sure the floor is at least 60 degrees for a minimum of. Traditional marine epoxy system.

But epoxy floors can be very expensive when an unskilled applicator leaves a finished product in a mess. Delamination of epoxy flooring com pounds. Epoxy bonding surfaces must be free of any. Therefore you can re coat the same day and save at least twice the time.

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. More technically what you re dealing with is amine blushing. 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. Cause adhesion issues with your project.

This phenomenon is known to epoxy chemists as amine blush or amine bloom. As noted before amine blushing is the result of the amine in the epoxy hardener reacting with carbon dioxide and moisture.