Steel Structure Anti-Corrosion Protection Polyurea Coating

Min.Order: 410
Product origin: Shanghai, China
Infringement complaint: complaintComplaint
US$ 5.32

Description
STWD951 spray polyurea elastomer waterproof
anticorrosion protective coating

Product descriptions     STWD951 is a 100% solid content aromatic spray polyurea elastomer. It is not sensitive to environment humidity and temperature during application, can fully meet the requirements of anticorrosion waterproof projects which has been widely used in the industrial and commercial field for anticorrosion waterproof protection.
                     
Product features and advantages.
*Solvent free, 100% solids, safe, environmentally friendly and odor free.
*Rapid cure, can be sprayed forming on any bent, slope and vertical surfaces, no sagging.
*Dense coating, seamless, with good flexibility.
*High adhesive strength, fast bonding well on steel, concrete, wood, glass fibers and other substrates.
*Excellent impact resistance, abrasion resistance
*Excellent corrosion resistance and chemical resistance to acids, alkali, salts etc.
*Excellent waterproof performance
*Good shock absorbing performance
*Excellent resistance to temperature variation
*Fast cure, application site back to service quickly
*Excellent durability to reduce the maintenance cost of lifelong 
*Extend the service life of sprayed structure


Application scopes      Construction, chemical, automobile manufacturing, metallurgy, electric power, marine, ship, film props, speakers and other fields of anticorrosion and waterproof protection.
           
Products information
ItemAB
AppearancePale yellow liquidAdjustable color
Specific gravity (g/m³) 1.131.04
Viscosity(cps)@25ºC720570
Solid content (%) 100100
Mixing ratio(volume ratio) 11
Gel time(second)@25ºC3-5
Dry time(second)10-20
Theoretical Coverage (dft)1.08kg/m3, film thickness:1mm

Physical properties of products
ItemsTest standard Result
Hardness (Shore A)ASTM D-224088
Elongation rate(%)ASTM D-412400
Tensile strength(Mpa)ASTM D-41218
Tear strength (kN/m)ASTM D-62452
Impermeability(0.3Mpa/30min)HG/T 3831-2006Impermeable
Wear resistance (750g/500r)/mgHG/T 3831-20064.8
Adhesive strength(Mpa)concrete baseHG/T 3831-20063.1
Adhesive strength(Mpa) steel baseHG/T 3831-200611
Density(g/cm³)GB/T 6750-20071.02
Cathodic disbondment [1.5v,(65±5)ºC,48h]HG/T 3831-2006≤15mm

Chemical resistance
Acid resistance 10%H2SO4 or 10%HCI,30dNo rust, no bubbles, no peel off
Alkali resistance 10% NaOH, 30dNo rust, no bubbles, no peel off
Salt resistance 30g/L,30dNo rust, no bubbles, no peel off
Salt spray resistance, 2000h No rust, no bubbles, no peel off
Oil resistance 0# diesel, crude,30dNo rust, no bubbles, no peel off
(For reference: the above data is acquired based on GB / T9274-1988 test standard. Pay attention to the influence of ventilation, splash and spillage. Independent immersion testing is recommended if requires other specific data)

Application environment
Environment temperature0ºC-45ºC
Product spray heating temperature65ºC-70°C
Pipe heating temperature55ºC-65ºC
Relative humidity≤80%
Dew point≥3ºC

Application guide
Recommend spray machineH-XP3 Polyurea spray equipment
Spray gunFusion-air purge or mechanical purge
Static pressure2300-2500psi
Dynamic pressure2000-2200psi
Recommend film thickness 1000-3000μm
Recoating interval≤6h

Application note
  1. Agitate part B uniform prior to application, thoroughly mix the deposited pigments, or the product quality will be affected.
  1. spray polyurea within the proper time if the substrate surface is primed. For the application method and interval time of STWD polyurea speical primer please refer to STWD company's other brochure.
  2. Always apply STWD951 on a small area before large application to check the mix ratio, color and spray effect are correct. For detailed information of application please refer to the latest instruction sheet of the application instructions of STWD spray polyurea series.

Product curing time
Substrate temperatureDry Foot traffic Solid dry
+10ºC20s 45min7d
+20ºC15s 15min6d
+30ºC12s 5min5d
Note: the curing time varies with the environment condition especially the temperature and relative humidity.

Shelf Life
*From the manufacturer date and on the original package sealed condition:
A:10 months
B:10 months
*storage temperature:+5-35°C
Packing: Part A 210kg/drum, part B 200kg/drum
Make sure the product package sealed well
* store in cool and ventilated place, avoid direct sunshine exposure.

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



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