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Moisture Cure Polyurethane Industrial Anticorrosion Protective Coating
Moisture Cure Polyurethane Industrial Anticorrosion Protective Coating
Moisture Cure Polyurethane Industrial Anticorrosion Protective Coating
Moisture Cure Polyurethane Industrial Anticorrosion Protective Coating
Moisture Cure Polyurethane Industrial Anticorrosion Protective Coating
Moisture Cure Polyurethane Industrial Anticorrosion Protective Coating

Moisture Cure Polyurethane Industrial Anticorrosion Protective Coating

Min.Order: 200
Product origin: Shanghai, China
Infringement complaint: complaintComplaint
US$ 10

Description
       STWD959 moisture cure polyurethane industrial
anticorrosion protective coating

Descriptions    STWD959 moisture cure polyurethane industrial anticorrosion protective coating takes one component polyurethane resin polymer as raw material. The film membrane is dense, compact and elastic, it can adapt to the slight deformation without cracks from vibration and weather changes on various metal structure of industrial enterprises. It avoids the penetration of air, moisture and other corrosion media to be anti rust of metal structure. The coating film has a lot of urea bond, biuret bond, urethane bond and hydrogen bond to make excellent physical properties and anticorrosion performance.

Features and advantages
* excellent adhesive strength, bond solid with carbon steel, concrete and other substrates.
* coating membrane is dense and flexible, to withstand the damage of cyclic stress failure
* high solid content and meet the requirements of environmentally friendly
*excellent mechanical property, abrasion resistance, impact resistance and scratch resistance
*excellent waterproof
*excellent anticorrosion property and resistance to many chemical rust medium such as salt spray, acid rain.
*excellent anti-aging, no crack and no powder after long term outdoor use.
*hand brushable coating, easy to apply, multiple application method is suitable
*single component, easy application without need of mix ratio with other parts.

Typical use    Anticorrosion waterproof protection in the industrial enterprises of oil, chemistry, transportation, construction, power plant etc.

Product information
ItemResults
Appearance Color adjustable
Viscosity (cps )@20ºC250
Solid content (%)≥65
surface dry time (h)2-4
Pot life (h)1
theoretical coverage0.13kg/m2(thickness 100um)



Physical property  
ItemTest standardResults
pencil hardness GB/T 6739-20062H
bending test (cylindrical mandrel) mmGB/T 6742-19861
breakdown resistance strength (kv/mm)HG/T 3330-1980250
impact resistance (kg·cm)GB/T 173260
resistance to temperature changes (-40--150ºC) 24hGB/9278-1988Normal
adhesive strength (Mpa), metal baseASTM D-33595A (highest)
density g/cm3GB/T 6750-20071.03

Chemical resistance
Acid resistance 50% H2SO4 or15%HCl, 30dNo rust, no bubbles, no peel off
Alkali resistance 50%NaOH, 30dNo rust, no bubbles, no peel off 
Salt resistance, 50g/L,30dNo rust, no bubbles, no peel off
Salt spray resistance, 2000h No rust, no bubbles, no peel off
Oil resistance 0# diesel, crud oil, 30dNo bubbles, no peel off
( For reference: pay attention to the influence of ventilation, splash and spillage. Independent immersion testing is recommended if requires other specific data.)

Application environment
Relative temperature: -5~-+35ºC
Relative humidity: RH%:35-85%
Dew point: the temperature of metal surface must have 3ºC than dew point.

Application tips
Recommended dft: 100-200 (as design requirement)
Surface preparation: sand-blasting to above Sa2.5 degree, or polish to St3 class with electric tools.
Re-coating interval: 4-24h, if the interval time exceed 24h or has dust deposited, sand-blasting first and clean well prior to application.
Coating method: airless spray, air spray, brush, roller

Application note
It can be applied in the low temperature below 10ºC. Put the coating bucket into the air-conditioning room for over 24 hours when apply in the low temperature environment.
STWD recommends to agitate the coating uniform prior to application, pour accurate quantity of material to another vessel and seal well immediately. Don't pour the rest liquid to the original bucket.
The viscosity of product is set up in the factory, thinner shall not be random added by the applicators. Call the manufacturer for the instructions of special thinner if the viscosity changed as the application environment and humidity.


Curing time
Substrate temperatureSurface dry time Foot trafficSolid dry
+10ºC6h24h7d
+20ºC3h12h6d
+30ºC2h8h5d

Shelf Life
* storage temperature: 5ºC-32ºC
* shelf life: 12 months (sealed)
* store in cool and ventilated place, avoid direct sunshine, keep away from heat
* package: 5kg/bucket, 20kg/bucket, 25kg/bucket

Product health and safety information  
For information and advice on the safe handling, storage and disposal of chemical products, users shall refer to the latest Material Safety Data Sheet containing physical, ecological, toxicological and other safety related data.

Integrity declaration    
STWD guarantee all technical data stated in this sheet are based on laboratory tests. Actual testing methods may vary due to different circumstances. Therefore please test and verify its applicability. STWD does not take any other responsibilities except the product quality and reserve the right of any modifications on the listed data without prior notice.

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