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SWD POLYURETHANE (SHANGHAI) CO., LTD
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prilling tower special anticorrosion wear resistance coating

Details for prilling tower special anticorrosion wear resistance coating

prilling tower special anticorrosion wear resistance coating

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Paint and Coatings

prilling tower special anticorrosion wear resistance coating
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Product description:

SWD952 Series SH115 One component moisture cure polyurea polyurethane (elastic) system chemical fertilizer prilling tower special anticorrosion wear resistance coating

Descriptions               The chemical fertilizer industry prilling towers in general are built by reinforced concrete structure. Its wall must be tense, flat and mooth so it’s necessary to make surface antiseptic treatment. However, traditional way of anticorrosion applies mainly with epoxy paint coating, which would work in 2-3 years only because of its poor comprehensive epoxy performancewhich not only causes wall corrosion heavily but shapes wall-buildups in the process of prill manufacture, effect production and add safety problems. To better meet the demand, SWD Urethane Co., (USA) developed this special anticorrosion and wear resistance coating, with high adhesive strength, high PU anticorrosion performance, anticorrosion and temperature resistance. The product provides a better platform to prolong the service life of prill tower.

                                                                               

Characteristics             Coating takes high performance one component polyurea polyurethane resin prepolymer as main film forming material, inside of the high molecule structure of formed film coating contains large amount of urethane bond, biuret bond, urea ester bond and hydrogen bond which gives coating excellent physical and anticorrosion properties. Coating dense, with high adhesive strength and wear resistance, can be long-term applied in environment ambient of high temperature 160, low temperature -40, with high performances of acid resistance, alkali resistance, salt resistance, wet resistance, various chemical resistances.

                                                                               

Specifications   

Adhesive strength              3.5Mpa (or substrate broken)

Impact resistance              ≥50kg·cm

Tensile strength               17Mpa

Elongation                   350%

Penetrate resistance             2.3Mpa

Temperature variation          -40------+160

Wear resistance700g/500r    12mg

Acid resistance

40%H2SO4, 10%HCL, 30d        No rust, no bubbles, no peel done

Alkali resistance40%NaOH, 30d   No rust, no bubbles, no peel done

Salt resistance 100g/L, 30d        No rust, no bubbles, no peel done

Salt spray resistance, 1000h       No rust, no bubbles, no peel done

Oil resistance

0#diesel, crude oil, 30d           No rust, no bubbles, no peel done

                                                                                    

Data of performance

Color                        Multiple colors as customers’ need

Luster                        half glazed

Density                       1.08/cm3

Volume solid content            81%±2%

VOC                          ≤176g/L 

Recommended dry film thickness   200-300um

Theoretical coverage            0.24kg/(calculated by the above solids percentage and dry film thickness of 200 microns)

Practical coverage              allow appropriate loss rate

Dry time                     1-3h

Overcoating intervals           min: 3h; max: 28h

Overcoating method            airless spray, air spray, brush coating, roller coating

Flash point                    63°C

                                                                                  

 

Recommend procedures                        

No.

Name of products

Layers

Dry film thicknessμm

1

SWD polyurea special primer

1

50

2

SWD prilling tower special anticorrosion wear resistance coating

1

100

3

SWD prilling tower special anticorrosion wear resistance coating

1

100

Total

 

3

250

                                                                                

 

Application scope           Anticorrosion of fertilizer prilling tower in chemical industry.

                                                                                 

Shelf life         10 months ( Indoor with dry and cool conditions)

                                                                                 

Packing                    20kg/bucket; 25kg/bucket

 

                                                                                 

Production area             Minhang District, City of Shanghai (20%of raw materials imported from SWD US)

                                                                                        

Security                   To apply this product must be accordance with the relevant national regulation of sanitation, safety and environment. Avoid contacting the wet coating.                     

                                                                                 

Global applicability         Our company aims to provide worldwide customers the same coatings, but sometimes, some small adjustments are made to satisfy each region conditions and international norms, in this case, an alternative product data will be provided.

                                                                                      

Integrity declaration         Our company guarantees the reality of the listed data, due to the diversity and variability of the application environment, please test and verify it before use. We don’t take any other responsibilities except the coating quality self and reserve the right of modification the listed data without prior notice.

 

 

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