An epoxy flooring is a smooth, monolithic flooring formed by pouring a two to four component mixture over the concrete floor. If the epoxy is self levelling, then it shall tend to spread across the floor, in a manner so as to minimize the undulations and bring about as level a floor as possible.
Epoxy flooring promotes the Clean Room concept by providing a jointless finish and minimal undulations. This prevents accumulation of dirt and makes the floor highly washable. Epoxy flooring is also extremely tough and has strengths ranging from 60 N/mm2 to 80 N/mm2, which makes it much tougher than ordinary concrete floors which are typically of 20-40 N/mm2 strengths
|Epoxy Flooring||Vinyl Flooring|
|Finish||Surface finish is smoother.||Surface finish is less smooth.|
|Microbial Growth||Since the self-leveling epoxy flooring gives smooth finish and is very easy to clean, the micro-organism/bacterial growth is very difficult.||Possible because finish is not smooth and slight porosity/texture on the floor will lead to micro bacterial growth.|
|Ease of Application||Needs skilled application.||Easier to apply.|
|Abrasion & Tear Resistance||Higher.||Lower.|
What is a 100% solid system? A 100% solid system is a system that has no carrier base of water or solvent. In such a system, the Dry Film Thickness is equal to the Wet Film Thickness and there is no loss of mass.
|Water based coating||Solvent based coating|
|Emission||No V.O.C (volatile organic compounds).||Solvent based coatings contain V.O.C which emits solvent fumes (bad smell, potential breathing hazards, need for proper ventilation).|
|Health Hazards||No major health hazards while applying. Personal physical contact is not harmful.||Can pose potential health hazards; especially it can be carcinogenic or cause asthma. Personal physical contact may be harmful due to toxic nature.|
|Surface Penetration||Lesser surface penetration. This is more relevant for floorings and not really for wall coatings.||Better surface penetration results in a better performance when it comes to porous surfaces.|
|Cleaning||Equipments and splashes during application can, generally speaking, be cleaned easily with water.||Need for a special solvent based cleaner, requiring good effluent arrangements in the place.|
|Application for shut down / maintenance jobs||Poses no problems with minimal disturbance to areas / people / machinery.||Poses inconvenience as conditions may be unsuitable for workers/employees especially in closed area. Requiring masking and lot of preparations.|
|International conventions||No such restrictions.||Many of the European countries have banned solvented coating or they specify only a very low level of admissible VOC.|
Salt spray test is a standardized accelerated corrosion test based on ASTM B 117 standard that produces a corrosive attack to the coated metallic samples in order to predict its suitability in use as a protective finish. The appearance of corrosion products (oxides) is evaluated after a period of time. Test duration depends on the corrosion resistance of the coating; the more corrosion resistant the coating is, the longer the period in testing without showing signs of corrosion.
Surface preparation is probably the single most important determinant in determining the life of a coating; all other things equal.
There are two aspects of surface preparation: surface cleanliness and surface profile. Surface cleanliness refers to the extent of rust and other contamination on the surface; the cleanest surface being a surface close to white metal. Swedish standards are used to measure surface cleanliness of a metal.
Surface profile refers to the roughness profile on the surface of the substrate. For any coating to succeed, mechanical anchoring with a substrate is the first bonding; chemical cross-linking through polymerization is the second stage of bonding (as illustrated). It is essential that both stages of bonding are successful. For a 200 micron coat, the minimum surface profile recommended is 100 microns.
How does one assess the durability of any coating? While there is no simple way of assessing the durability of an exterior coating, as it is a function of numerous factors, one basic methodology that may be used for back of the envelope calculations is to check for the Dry Film Thickness (DFT) of the coating and higher the DFT, greater the expected life.
How is an intumescent coating different from fire retardant paints? An intumescent coating is one which swells as a result of heat exposure, thus increasing in volume, and decreasing in density. As a result, an intumescent coating serves to contain a fire at a point and achieve non spreadability of flame. Fire retardant paints are essentially non flammable paints. For eg, if a cable with an intumescent coating develops a fault at a point, the coating shall swell to multiple times its size to contain the spread of the fire. Intumescent coatings are typically used in passive fire protection.
A liquid floor hardener is a substance which penentrates deep into the concrete and subsequently solidifies. It thus acts as an effective long term sealant and increases the toughness and hardness of the concrete floor. it makes the floor dust proof and can be polished to a mirror like finish. All Styling Absolut