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Special Polyurea Anticorrosive Protective Coating For Buried Pipeline

Special Polyurea Anticorrosive Protective Coating For Buried Pipeline

JSD708
Customized processing according to the performance indicators provided by customers, the price of customized products is negotiable.
JSD708 is a 100% solid aromatic spray polyurea elastomer, which is generated by the reaction of isocyanate components and amino compound components. It requires professional polyurea equipment for spraying and construction. It can adapt to complex and changeable geological structures, hot and cold climate zones, and corrosion of soils in different climates. With its excellent comprehensive physical properties and stable corrosion resistance, it has been valued by relevant engineering design and construction units and has been continuously applied to buried pipeline projects.
Product features: ① No solvent, 100% solid content, safe, environmentally friendly, no odor ② Fast curing, can be sprayed on any curved surface, inclined surface and vertical surface without sagging. ③ The coating is dense and seamless, with good flexibility and strong adhesion
Polyurea: ① Excellent impact resistance, collision resistance, and wear resistance ② Excellent chemical medium corrosion resistance, which can withstand a certain concentration of acid, alkali, salt, oil, etc. ③ Excellent anti-seepage and waterproof performance ④ Excellent resistance to microbial and plant root erosion
Waterproof and anti-corrosion: ① Good shock absorption performance ② Excellent temperature change stability ③ Fast curing allows the construction area to be quickly restored to use ④ Excellent durability, reducing lifetime maintenance costs ⑤ Extend the service life of the spray structure
Scope of product application
Petrochemical, natural gas, municipal engineering, urban water supply and drainage
Construction base treatment
Metal surface: It is recommended to sandblast and remove rust to Sa2.5 level of ISO8501-1 or GB8923 standard.
Concrete surface: It should be solid, dense, flat, clean and dry. There should be no sanding, peeling, cracks, honeycomb surface and other phenomena. It is usually necessary to repair with putty.
Wood surface: Clean, dry without burrs, fragments and loose fragments.
Product packaging and shelf life
Packaging: Component A 210 kg/barrel
Component B 200 kg/barrel
Warranty period is 10 months (from the date of production if the original packaging is not opened)
Storage temperature: 5-35'C
Make sure the product is well sealed and stored in a cool, ventilated environment away from direct sunlight
Notes
1. Before using the product, component B should be fully stirred to ensure that the pigment is evenly mixed. Otherwise, the quality of the product will be affected.
2. If the construction substrate is coated with a primer, please spray polyurea within the appropriate time frame.
3. For the specific use of the company's polyurea special primer and the overcoating interval, please refer to JSD's other product manuals.
4. The company requires customers to test spray an area at the spraying site before formal spraying to ensure that the product mixing ratio, color and spraying effect are correct and ideal. For the specific use of JSD708, please refer to our company's "JSD Spray Polyurea Series Product Construction Instructions"
Integrity Statement
The company promises that the product data listed above are obtained in relevant laboratories. The relevant data during the test process may vary due to different test environments and methods. Therefore, the company recommends that customers conduct experimental verification before using the product. Except for the product quality itself, the company does not assume any responsibility and reserves the right to adjust and update the above data without prior notice.
Product Health and Safety Information
For information and recommendations on product handling, storage and disposal, please refer to the company's latest version of the product technical safety and technical instructions. This includes product physical properties, ecology, toxicology data and other relevant information data.

project

Component A

Component B

Appearance

Light yellow liquid

Adjustable color

Specific gravity (g/cm3)

1.15

1.03

Viscosity (cps) @20℃

1100

1000

Solid content (%)

100

100

Mixing ratio (volume ratio)

1

1

Gel time (seconds) @25℃

25-35

 

Theoretical coating rate (surface dry film thickness)

1.05kg/m Film thickness 1mm

 

project

Test Standards

result

Hardness (Shore D)

GB/T23446-2009

70

Elongation at break (%)

GB/T23446-2009

20

Tensile strength (MPa)

GB/T23446-2009

25

Tear strength (KN/m)

GB/T23446-2009

78

Water impermeability (0.3MPa/30min)

GB/T23446-2009

impermeable

Abrasion resistance 750g/500r)/mg

GB/T23446-2009

15

Adhesion (MPa) concrete substrate

GB/T23446-2009

3.6

Adhesion (MPa) steel substrate

GB/T23446-2009

12

Cathode stripping resistance [1.5v (65±5)℃, 48h]

HG/T 3831-2006

≤15mm


Corrosion resistance of the product

Items

Results

Acid resistance 10% H2SO4 or 10% HCI, 30d

No corrosion, no blistering, no shedding

Alkali resistance 10% NaOH, 30d

No corrosion, no blistering, no shedding

Salt resistance 30g/L, 30d

No corrosion, no blistering, no shedding

Salt spray resistance, 2000h

No corrosion, no blistering, no shedding

Oil resistance No. 0 diesel, crude oil, 30d

No corrosion, no blistering, no shedding

(Note: The above chemical resistance is obtained according to the GB/T9274-1988 test method and is for reference only. The test results may vary slightly depending on volatility, concentration, and overflow. Therefore, it is necessary for customers to test a certain indicator on their own if necessary.


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