What is a polyurethane waterproof coating? Polyurethane waterproof coating price

What is a polyurethane waterproof coating?

Polyurethane waterproof coating is an isocyanate-containing prepolymer made of isocyanate, polyether and other polyaddition reaction. It is formulated with catalysts, anhydrous additives, anhydrous fillers, solvents, etc. One-component polyurethane waterproof coating.

Polyurethane waterproof coating classification

Polyurethane waterproof coatings can be divided into single and double components.

One-component polyurethane waterproof coating, also called moisture-curing polyurethane waterproof coating, is a reactive moisture-curing film-forming waterproof coating. When applied to the waterproof base layer, it reacts with moisture in the air to cure and crosslink into a tough, soft and seamless rubber waterproofing membrane.

High strength polyurethane waterproof coating is a two component reaction curing type waterproof coating. High-strength polyurethane waterproof coating Two-component chemical reaction curing type Isocyanate-terminated prepolymer obtained by polycondensation of polyether and isocyanic acid, component B is composed of a plasticizer, a curing agent, a thickener, a coagulant, a filler Composition of colored liquids. When used, the two components of A and B are mixed in a uniform manner, and they are painted on the surface of the waterproof base layer, and are often cross-linked and cured to form a rubber elastic film with high elasticity, high strength and durability, and thus play a role in waterproofing.

The water-borne polyurethane waterproof coating generally refers to a single component polyurethane waterproof coating, oil refers to the two-component polyurethane waterproof coating; compared to the water performance is almost, the price is cheaper, the most important thing to see the use of the environment! However, waterborne polyurethane waterproof coatings are more environmentally friendly. Each has its own good, just like fruits, with different effects and different requirements.

Polyurethane waterproof coating features

(1) It can be directly applied on wet or dry surfaces.

(2) It has strong adhesion to the base surface, and the polymer material in the coating film can penetrate into the fine sipes on the base surface and follow the strong type.

(3) The coating film has good flexibility, adaptability to stretching or cracking of the base layer, and high tensile strength.

(4) Green, non-toxic, odorless, non-polluting environment and no harm to the human body.

(5) Weather resistance is good, high temperature does not flow, low temperature does not crack, excellent anti-aging properties, oil resistance, wear resistance, ozone resistance, acid and alkali resistance.

(6) The coating film is dense, the waterproof layer is complete, no cracks, no pinholes, no air bubbles, and the water vapor permeability coefficient is small. It has both waterproof function and gas barrier function.

(7) The construction is simple, the construction period is short, and maintenance is convenient.

(8) According to needs, can be equipped with various colors.

(9) It is light and does not increase the load on the building.

Polyurethane waterproof coating construction process

1. Sweep the base layer: Remove the gray skin that is stuck on the screed with a blade, and clean the dust with a broom, especially the roots, floor drains, and drain outlets. If there is oil contamination, apply a wire brush and sandpaper to brush off or apply an intermediate paint and cement over the surface of the oil stain. The surface must be flat and the depression should be leveled with 1:3 cement mortar.

2. Apply primer: Mix the polyurethane A and B components and xylene in a ratio of 1:1.5:2 (by weight) and mix well. Use a rolling brush or a paint brush to dip the primer evenly on the surface of the substrate, not too thin or too thick. The amount of brushing should be about 0.2 kg/m. After brushing, it should be dried for more than 4 hours before the next operation can be performed.

3. Detail of additional layer: Mix the polyurethane coating waterproof material in a ratio of Group A:Part B=1:1.5. Stir the paint on the floor drain, pipe roots, yin and yang corners, and water outlets, etc. Weak brushing shall be applied evenly to the weak parts. Do not leak the brush (the junction between the floor and the wall shall be 100mm high on the waterproof wall).

4. First coating: Mix the polyurethane A and B components and xylene in a ratio of 1:1.5:0.2 (weight ratio), pour into a mixing bucket, and mix well with an electric stirrer ( About 5min), use a rubber scraper or paint brush to draw a layer of paint, the thickness should be uniform, and the amount of scraper coating should be 0.8 ~ 1.0kg/m. It is appropriate to retreat from the inside out.

5. Second coating: After the first coating, when the coating is cured to a non-stick hand, according to the first pass material ratio method, the second pass of the coating operation, in order to uniform coating thickness, draw The direction must be perpendicular to the first pass and the amount of squeegee is the same as the first pass.

6. The third layer of coating film: After the second layer of coating film is solidified, the coating material is still mixed according to the material ratio of the first two passes, and the third pass of the coating material is performed. The application amount of the coating is 0.4-0.5 kg/m. After coating, when uncured, the clean φ2 to φ3mm particle size of the gravel may be sprinkled on the surface of the coating to increase the adhesion to the cement mortar overlay.

Polyurethane waterproof coating price

Polyurethane waterproof coating national standard sales price of 12,500 yuan / ton, 20 kg per barrel, so the price per barrel of polyurethane waterproof coating is probably 250 yuan per square meter. According to the specification, the use of 2.5 kg of paint, so the price per square meter of material is 31.25, if you do, basically 2 kg is enough, do not do so well. If you let other people work for you, he wants you 45 dollars to be appropriate. If you only make a bathroom, I think 60 yuan and 1 square meter may not be given to you. Now the price on the market is different, reaching the national standard. The minimum is around 11,000, if it is non-standard, then the non-tar about 6000.

Paint Paint Buy Paint Paint Cement Toilet Waterproof Toilet Waterproof Toilet Waterproof Price Toilet Water Leakage

China Electric Water Heater, WATER HEATER ,Big Power Gas Water Heater Supplier

Electric Water Heater ,Water Heater,Big Power Gas Water Heater,Gas Water Heater

China Electric Water Heater,Water Heater supplier & manufacturer, offer low price, high quality Big Power Gas Water Heater,Gas Water Heater, etc.

This is belong to  Flue Type Gas Water Heater,20min auto-flameout timer,it is very fast and safe device .it had 6L-12L can be choose  ,very easliy to handle it 

Low Water Pressure Starting can be .we will support best quality for our cusotmers for win win business for future for us .

WATER HEATER

Electric Water Heater,Water Heater,Big Power Gas Water Heater,Gas Water Heater

GUANGZHOU AIJINGSI TRADING LIMITED , https://www.aichugashob.com