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One-component polyurethane waterproof coating
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One-component polyurethane waterproof coating

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产品描述

 


 

product description

 

One-component polyurethane coating is a reactive moisture-curing film-forming polymer waterproof coating. It is made of guanidinium isocyanate and polyether as main raw materials, mixed with various additives such as latent solidifying agent and plasticizer. The special process is formed by high temperature dehydration and polymerization. When applied, it is applied to the waterproof base layer, and a NCO end group in the polyurethane prepolymer is chemically reacted with moisture in the air to form a tough, soft and seamless rubber waterproof coating film on the surface of the base layer.

 


 

Features

 

One-component polyurethane waterproof coating, ready to use on the spot, easy to construct.

 

The polyurethane coating film has high tensile strength, high elongation, good elasticity, high resistance, low temperature performance, and strong adaptability to base layer shrinkage and cracking deformation.

 

The coating film is dense, without pinholes and bubbles.

 

It has strong bonding force and is especially suitable for waterproofing of special-shaped components. It has unique advantages for waterproofing and strengthening of joints such as roots, floor drains and gutters.

 

The color is adjustable to meet the humanized requirements of different customers.

 

 


 

Specification model

 

According to physical and mechanical properties, it is divided into type I, type II and type III.

 


 

Scope of application

 

The product can be used for waterproof construction of various civil and industrial buildings such as roofing, basement, toilet, swimming pool, etc. It is more suitable for waterproof construction with complicated shape and vertical and horizontal parts of the pipeline.

 

click the link

 


 

Construction process

 

Base treatment: The base layer is required to be firm, flat and free of debris. The yin and yang angles should be rounded, the diameter of the female corner is greater than 50mm, and the diameter of the male corner is greater than 10mm.

 

Ingredients and dosage: According to the application dosage, stir evenly and use the scraper to evenly brush. The reference dosage is: 1mm thick coating film dosage is about 1.5-1.7kg/m2.

 

Large-area waterproof construction: the paint is evenly coated with a squeegee. The subsequent application should be applied in the vertical direction after the previous curing and film formation. Generally, the film is formed separately, and the corner of the floor of the underground engineering should be increased. Carcass reinforcement and should be coated with a waterproof coating.

 

Coating film thickness: underground engineering coating thickness can be 1.2-2.0mm, recommended not less than 1.5mm, toilet bath room is not less than 1.5mm, non-exposed roofing project multi-channel fortification, each road should not be less than 1.5mm (according to the defense road The number of superimposed), when the waterproof level is a fortification of the second-grade roof, the thickness should not be less than 2mm. When the carcass reinforcement material is sandwiched between the coatings, the thickness of the coating under the carcass is not less than 1.0mm, and the thickness of the upper coating is not less than 0.5. Mm.

 

Finishing layer construction: The last time the coating is uncured, the fine sand is scattered on the surface.

 

Protective layer: The surface of the coating waterproof layer should be isolated and protected according to the design requirements.

 

 

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Engineering case

 

Click on the link to the project case

 


 

Performance

 

GB/T19250-2013 "Polyurethane Waterproof Coating"

Serial number

project

Technical indicators

            Ⅰ

          II

       III

1

Solid content (%) ≥

Single component

                                  85.0

2

Dry time (h) ≤

                                  12

3

Dry time (h) ≤

                                  24

4

Tensile strength (Mpa) ≥

          2.00

       6.00

     12.0

5

Elongation at break (%) ≥

           500

       450

      250

6

Tear strength (N/mm) ≥

           15

       30

      40

7

Low temperature bending

                            -35℃,No crack

8

Impervious

                   0.3MPa,120min,impermeable

9

Bond strength (Mpa) ≥

                               1.0

 

 

 


 

 

 

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