Small braid take you to understand the epoxy floor paint two or three things
1. Know epoxy floor paint
Epoxy floor paint referred to as "epoxy floor paint" so-called epoxy means the use of epoxy resin as a raw material of a coating all people call epoxy floor paint, more people called epoxy floor paint.
2. Composition of epoxy resin floor paint
Epoxy resin floor coatings are mainly composed of film-forming materials including epoxy resin, curing agent, active diluent, pigment filler, functional additives, solvents (including water) and other materials.
3. Types of epoxy floor paint
3-1. Classification by material properties
Epoxy resin floor paint is mainly divided into two different types of materials: one is solvent based epoxy resin floor paint, and the other is solvent free epoxy resin floor paint, both of which belong to oily paint.
A, solvent-based epoxy floor paint
Solvent-based epoxy floor paint is suitable for places that require wear resistance, corrosion resistance, oil resistance, pressure resistance, smooth surface, and easy to clean, such as parking lots, automobile manufacturing, machinery manufacturing, papermaking, cigarettes, chemicals, textiles, High-standard ground for production workshops in furniture and other industries. Solvent-based epoxy resin floor has the following advantages: overall seamless, easy to clean, do not gather dust, bacteria; smooth surface, rich color, can beautify the working environment; ground non-toxic, in line with health requirements; with skid resistance, parking lot ground must have a certain roughness, the general cement floor is difficult to meet the requirements.
B, solvent-free epoxy floor paint
Solvent-free epoxy floor paint, also known as waterborne epoxy floor paint, is a kind of ground decoration material with high cleanliness. The surface of epoxy floor is smooth and smooth, which can meet the requirements of high cleanliness. It is widely used in self-leveling construction and is widely used in medicine, food, electronics, precision instruments, automobile manufacturing and other industries with high requirements on the ground. Solvent-free epoxy floor has the following advantages: high bonding strength with the base layer, when hardened, the shrinkage rate is low and it is not easy to crack. Seamless, easy to clean, no dust and bacteria; High solid content, thick film at one time; No solvent, low construction toxicity, in line with environmental protection; High strength, wear resistance, durable, can withstand forklift, cart and other vehicles for a long time; Anti-penetration, strong corrosion resistance to chemicals, good tolerance to oil; Room temperature curing film, easy maintenance; smooth surface, rich color, can beautify the working environment, the ground non-toxic, in line with health requirements.
3-2, by functional classification
A, epoxy resin flat coating type floor paint B, epoxy resin mortar type floor paint c, epoxy resin self-leveling floor paint d, epoxy resin anti-static floor paint e, epoxy resin anti-corrosion floor paint f, epoxy resin color sand floor paint g, epoxy resin stadium floor.
2. depth of understanding
1. Main characteristics of epoxy floor paint
1-1, excellent adhesion: epoxy floor coating has many hydroxyl and ether bonds, so it can be adsorbed with the bottom material. And the epoxy resin curing volume shrinkage rate is low, so the paint film on metal, ceramic, glass, concrete, wood and other polar substrates have excellent adhesion.
1-2, epoxy resin floor on the wet surface has a certain wetting force, especially in the use of polyamide resin as a curing agent, can be made into underwater construction coatings, can crowd out the surface of the water and coating, can be used for underwater structure repair and underwater structure of anti-corrosion construction.
1-3, epoxy resin floor itself is not high molecules, with a variety of curing agent with the manufacture of solvent-free, high solid powder coatings and water-based coatings, in line with environmental requirements, and can obtain thick film coating.
1-4, epoxy resin floor containing epoxy and hydroxyl two kinds of active groups, with polyamine, polyamide resin, phenolic resin, amino resin, polyisocyanate and other coordination, made of a variety of coatings, both at room temperature drying, cocoa high temperature baking, in order to meet the different construction requirements.
2, epoxy floor paint performance characteristics
Epoxy floor paint is the use of epoxy resin and curing agent mixture production of floor paint. Epoxy floor paint has strong acid and alkali resistance, wear resistance, pressure resistance, impact resistance, mildew, waterproof, dustproof, anti slip and anti static, electromagnetic wave and other characteristics, bright and diverse colors, easy to clean. It uses a one-time coating process, no matter how large the area, there is no connection seam, but also a dust-free material, with strong adhesion, abrasion resistance, hardness and so on.
3. Scope of application of epoxy floor paint
Epoxy floor paint is widely used in electronics factory, machinery factory, hardware factory, pharmaceutical factory, automobile factory, hospital, aviation, aerospace base, laboratory, office, supermarket, paper mill, chemical plant, plastic processing plant, textile factory, tobacco factory, candy factory, brewery, beverage factory, meat processing plant, parking lot and other surface coating. At present, it has been accepted and used by many domestic manufacturers.
4. The special features of epoxy floor paint and traditional floor
A, cement floor: easy to break, dust, rough not bright, easy to dirty, not easy to clean, suitable for road floor, not suitable for industrial floor.
B, stone floor: easy to dust, spring resurgence, water is not easy to distribute, walking sound, easy to penetrate grease is not easy to clean, must do waxing maintenance.
C, ceramic tile floor: loud sound, easy to break when heavy vehicles walk, cable ditch, moisture regain, water difficult to distribute, easy to slide, not suitable for industrial floor, suitable for office buildings or pedestrian walkways.
D, wood floor: easy to mold, roughness is too strong, walking has the feeling of foot resistance, afraid of water, perishable, not easy to maintain, suitable for home floor.
E, polyester coating floor: water absorption is too strong, easy to change color, easy to fade, adhesion is not strong, poor wear resistance, not pressure, solvent resistance is poor, suitable for decoration, coating, not suitable for industrial floor.
F, epoxy resin floor: strong adhesion, wear resistance, high hardness, acid and alkali resistance, anti mold, not dust, corrosion, waterproof, rust, surface bright, beautiful, no joints, low maintenance costs, suitable for ISO9001, GMP international certification and general standard workshop floor.
5, Epoxy resin floor paint selection
A. mechanical performance requirements mainly consider three factors:
a-a, wear resistance: floor in the use of what vehicles will walk?
a-b, pressure resistance; floor in the use of the maximum will bear much load?
a-c, impact resistance: impact force will cause the floor surface peeling?
B. chemical performance requirements are mainly in two aspects, acid and alkali resistance: the total type and concentration of corrosive chemical media when used, solvent resistance, solvent type and contact time when used.
b-a, floor location, according to the floor is in the underground floor or ground floor location, determine whether the need for moisture-proof treatment or select special moisture-proof floor.
b-b, base surface condition, base strength general requirements compressive strength is greater than or equal to 20MPa flatness is not the need to use epoxy mortar repair.
b-c, aesthetic requirements, color requirements whether the need for color division of the region? Brightness requirements whether to choose matte or bright light? Flatness requirements on the flatness of the floor have focused requirements?
b-d, fire flower and anti-static is not required floor fire or anti-static special requirements, safety requirements if the floor in the oil environment or ramp is the need to choose non-slip floor.
b-e, cost budget to choose the right type and thickness of the floor.
1, Epoxy floor paint construction technology
a. plain ground treatment
① The plain ground of foundation shall be cement powder smooth surface or grindstone ground;
② The plain land needs to be maintained for more than 28 days, and the water content needs to be less than 8% before the plain land can be constructed. If there is unevenness or hollowing, it needs to be removed;
③ ground with epoxy mortar;
④ The oil stains in the plain land shall be thoroughly cleaned;
⑤ Keep the construction site dry and clean before construction;
① Keep it clean before construction. If there is any debris adhesion, remove it. Mix the main agent and hardener in the correct proportion and stir it fully;
② Need to adjust the appropriate viscosity depending on the ground conditions. Mixing materials should be completed within 4 hours;
③ The curing time of the bottom coating is more than 8 hours.
c. Medium coating
Epoxy resin floor construction before the need to keep clean, such as debris adhesion to be removed in accordance with the correct proportion of the main agent and hardener mixed, fully stirred;
② Add appropriate amount of mixed resin into quartz sand;
③ Use a trowel to coat the material evenly;
④ The construction of mixed materials shall be completed within 30 minutes;
⑤ Handover at the construction junction;
⑥ The curing time of the medium coating is more than 8 hours.
d. Batch soil layer
① Mix the main agent and hardener according to the correct proportion, and stir well;
② Use a batch knife to coat the material evenly;
③ The construction of mixed materials shall be completed within 30 minutes;
④ The curing and hardening time of batch soil is more than 8 hours;
⑤ According to the actual needs, several construction channels shall be smooth without holes, and no batch knife marks and sand grinding marks shall prevail.
e. Top coating
① Keep it clean before construction. If there is any debris, it shall be removed;
② Stir the main agent evenly before use;
③ Mix the main agent and hardener according to the correct proportion, and stir well;
④ Use roller or trowel to evenly coat and mix the material to complete the construction within 30 minutes;
⑤ Handover treatment shall be done at the construction junction;
⑥ After the completion of the construction, people can be engaged 24 hours later and heavy pressure can be applied 72 hours later (250C shall prevail, and the opening time shall be moderately extended at low temperature)
2. Environmental requirements for epoxy floor paint construction
A, base surface moisture content: in more than 6% can not be non-water epoxy floor construction;
B, humidity in the air: above 85% should stop construction;
C, construction temperature: below 5 ℃ should choose special formula.
3. Precautions for construction of epoxy floor paint
Avoid construction under low temperature and high humidity conditions; After the two-component materials are mixed, the construction should be carried out in a short time; After the coating is completed, it should be fully used after the maintenance period; According to the flatness of the substrate and the use requirements, the coating thickness is determined. The worse the ground flatness, the thicker the coating system, the greater the coating load, the thicker the coating should be, such as the coating is too thin, the use of the process is easy to damage, such as the ground floor also need to do waterproof treatment.
4, Epoxy floor paint acceptance criteria
A, the ambient temperature is 25 ℃, 2-3 days after the construction should reach hard work, that is, the hardness reaches about 80% of the completion of curing;
B, the surface can not appear sticky phenomenon;
C, bubble: flat coating type, mortar type without bubbles, self leveling allows a small bubble/10 square meters;
D, good leveling, no trowel marks, large area interface is basically flat;
E, no floating color hair flowers, uniform color, large area interface is allowed to have very insignificant color difference;
f. No coarse impurities, but minimal defects caused by floating dust falling in the air are allowed;
G, floor surface should be flat and smooth, gloss should meet the design requirements (high gloss ≥ 90, light ≥ 70, semi-light 50~70), flat coating type for light, water for semi-light ~ no light;
H, orange peel, mortar anti-skid surface effect should be very obvious.
5, epoxy floor paint maintenance
Epoxy floor paint is a high-value, high-quality, high-demand products, the need for careful maintenance and maintenance, the correct use of the method can make the ground as new, and can extend the service life, the measures are as follows:
A, all personnel entering the workshop need to change shoes (so as not to bring mud and sand into the workshop and scratch the ground);
B, all hardware, its feet must be wrapped in soft plastic or rubber to avoid scratching the ground during use;
C, drag the pallet to fully lift the pallet off the ground, pay special attention to the corner of the pallet do not scratch the ground when turning;
D, when cleaning the ground need to use a soft mop or wet and dry vacuum cleaner, can be cleaned with water or detergent, but pay attention to the slippery ground;
E, if the use of a long time caused by wear or scratches, a small area can be repaired locally, if the area is larger, it is recommended to re roll or trowel coated once.
f. Please use hard or elastic rubber wheels for the wheels of carts and carts, and use them separately inside and outside the workshop.
1. Know epoxy floor paint
1. Know epoxy floor paint