Sprayable Aliphatic Polyurea Coating Supplier in China
Sprayable Aliphatic  Polyurea Coating paint coating manufacture Shenzhen China  
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Sprayable Aliphatic Polyurea Coating

DESCRIPTION
Aliphatic Sprayable Polyurea Coating is a two component sprayable aliphatic polyurea. It dries in seconds to provide a tough chemical and abrasion resistant coating. As an aliphatic polyurea, Aliphatic Sprayable Polyurea Coating is color fast and will resist yellowing from Ultra violet light exposure. Typical working times of one minute or less can be expected. This fast reaction requires a fast, efficient mixing technique so that the mixture can be applied within the short gel times. Impingement mixing from available two-component spray machinery is efficient and entirely adequate. Aliphatic Sprayable Polyurea Coating is recommended for use in areas such as tanks, cooling tower linings, water and wastewater and waterproof deck coatings. It can be used in food and beverage cold storage areas, mechanical rooms, industrial plants, chemical and fertilizer plants, pulp and paper mills and petrochemical facilities.
ADVANTAGES


Fast cure. Can be mixed and put in service within 2 hours.

Chemical and UV resistant.

100% solids. Two-component, low shrinkage.

Excellent physical properties including high adhesion, tensile strength and abrasion resistance.

High thermal stability at temperatures up to 250 F.

SURFACE PREPARATION
Steel Surfaces – Prepare in accordance with Surface Preparation SSPC-SP6 to SP10 near-white metal blast cleaning. All work blasted should be coated the same day.
New concrete - Remove laitance by acid etching, abrasive blasting or water blasting. Old concrete - abrasive blast or water blast to remove laitance and contamination. Spray apply one coat of HJ-80 Polyurea Primer to prevent pinholes Polyurea – Less than three days old solvent wipe and apply Aliphatic Sprayable Polyurea Coating ; if more than 3 days old roughen surface with abrasive sanding. Solvent Wipe with Acetone or MEK and apply Project Conditions: Surface must be structurally sound, dry, and uncontaminated. Concrete must be free of voids, bugholes, honeycombs and delaminations.
APPLICATION
For large volumes, a high-pressure proportioner with heated lines and an external impingement mix, two-component spray gun may be used. Aliphatic Sprayable Polyurea Coating can be applied at temperatures from 35oF to 1oF.
Best spray pressure is 00 to 3000 psi; hydraulic pressure at


400 - 550 psi. Materials are heated to 140 – 160° F for spraying. The use of conventional static mix or plural-component internal-mix spray equipment is not recommended. Thickness can be built to most specifications in one application. Best spraying practice is with gun 2 ft. from surface and perpendicular to surface. Edges left overnight should be roughened and primed before overlapping.


PHYSICAL PROPTIES

Mix Ratio

By volume 1A to 1B

Drying Properties @ 30 mils wet @ 73 F and 50% RH

Gel time, seconds

45

To touch

3 minutes

To recoat

3 minutes minimum;16 hours maximum

Surface at 1 hour

tack free

Full Cure

24 hours

Elongation, %

750

Tear strength

500 pli

Shore D Hardness

54

Tensile strength, psi

2400

Remains flexible in temperature range of

-45oF to 0oF

Flash Point, Components

>0 F

Gardner Impact

Direct and Indirect >160 in-lbs

Moisture Vapor Transmission ASTM E 96

0.025 perm

Abrasion Resistance (wt. loss mg) ASTM D 4060

1000g 1000 rev CS-17 6 mg.

Color

White, Black, Light Gray, Dark Gray, Beige, Brick Red,

Bond Strength

Concrete

350 psi

Steel

1,500 psi

Wood

450 psi

PACKAGING: Aliphatic Sprayable Polyurea Coating is packaged as a 100 gallon unit.


LIMITATIONS
Aliphatic Sprayable Polyurea Coating is an aliphatic based polyurea system. Consult chemical resistant chart for corrosive environment applications. Do not install in hydrostatic or moisture/vapor conditions. SHELF LIFE: Six months minimum when stored at 75°F and dry conditions. Aliphatic Sprayable Polyurea Coating, like most construction materials, must be stored in a dry, well protected and suitable storage environment. Keep containers sealed. CAUTION: Contains aliphatic isocyanates. Avoid breathing vapors. Avoid contact with skin and eyes. Do not ingest. Keep away from foodstuffs and wash thoroughly before smoking or eating. Should skin contact occur, wash skin well with soap and water. Should eye contact occur, flush thoroughly for at least 15 minutes with water. Get medical attention.



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