Two Component Moisture Cure Polyurethane with Static Conductive Anticorrosion Protective Coating

• Color: Color Adjustable
• Appearance: Liquid
• Main Raw Material: Polyurethane
• Method: Brush
• Level: Finish Coat
• Drying Method: Drying
• Model NO.: 8004
• Certification: ISO14001, ISO9001
• Substrate: Concrete or Metal
• Components: Film Forming Matter
• Formation Mechanism: Conversion Type
• Pencil Hardness: 2h
• Adhesive Strength (Grid Method): 1 Grade
• Flexibility: 1 Grade
• Acid Resistance 20%H2so4 or 10%HCl,30d: No Rust, No Bubbles, No Peel off
• Alkali Resistance 20%Naoh, 30d: No Rust, No Bubbles, No Peel off
• Salt Spray Resistance, 1000h: No Rust, No Bubbles, No Peel off
• Transport Package: Steel Bucket Packaging
• Specification: 20kg/group or 25kg/group
• Trademark: STWD
• Origin: Shanghai, China
• HS Code: 320890
• Production Capacity: 80000kg/Day

Product Description

Product Description

 

STWD8004 two component moisture cure polyurethane static conductive anticorrsion coating combines static conductive requirements with anticorrosion function, prevent the generation of electrostatic charge and promote the leakage of electric charge, eliminate the accumulation of static charge to guarantee the safe use of storage tanks.

Product features and advantages
* excellent conductivity, with volume resistivity less than 10⁸Ωcm, surface resistance lower than 10⁹Ω.
* excellent chemical resistance such as acid, alkali and salt
* excellent oil resistance and anticorrosion property
* excellent abrasion resistance and impact resistance
* anti-swelling performance to various oil or solvents, no precipitates
* excellent conductivity to provide reliable assurance for the safely of oil storage tanks
* integration material of primer and topcoat, easy to apply
Typical use
Various metal surface anticorrosion that has static charge accumulation such as cru de oil storage tank, refined oil storage tank, natur al gas storage tank.

Product information

Item	Part A	Part B
Appearance	1.05	1.25
Specific gravity (g/cm3)	720	570
Viscosity (cps) @25ºC	68	68
Solid content (%)	1	1
Mix ratio (by weight)	1-3h
surface dry tme (h)	1.05	1.25
Re-coat tim (h)	Min 3h, Max 36h (20ºC)
theoretical coverage (dft)	0.13kg/m2 thickness 50μm

Physical property

Item	Test standard	Results
Resistance /Ω	GB/T 16906-1997	10^5-10^8
Pencil hardness	GB/T 6739-2006	2H
Adhesive strength (grid method)	GB/T 1720-1989	1 grade
flexibility	GB/T 1731-1993	1 grade
Impact resistance kg·cm	GB/T 1731-1993	≥50

Chemical resistance

Acid resistance 20%H2SO4 or 10%HCl,30d	no rust, no bubbles, no peel off
Alkali resistance 20%NaOH, 30d	no rust, no bubbles, no peel off
Salt resistance 50g/L,30d	no rust, no bubbles, no peel off
Salt spray resistance, 1000h	no rust, no bubbles, no peel off
Oil resistance 0# diesel, crude, 30d	no rust, no bubbles, no peel off
Aviation kero sene and distilled water mixture (51ºC~53ºC,21d)	No rust, no soft, no bubbles
(For reference: Pay attention to the influence of ventilation, splash and spillage. Independent immersion testing is recommended if requires other specific data)

Application environment
Environment temperature: -5 ~+ 35ºC
Relative humidity: ≤85%
Dew point: ≥3ºC

Application tips
Hand brush, roller
Air spray, air pressure 0.3-0.5Mpa
Airless spray, spray pressure 15-20Mpa
Recommended dft: 50-80 um
Re-coating interval: ≥3h

Application note
Agitate part B well prior to use.
Mix it well with right ratio, pour out the limited material to use.
The rest material in the buckets should be sealed well immediately to avoid moisture adsorption.
Keep dry and clean during application, forbidden to contact with water, alcohol, acid, alkali.