SWD9527 solvent free thick film polyurea anticorrosion waterproof coating

short description:

SWD9527 is a two component aromatic thick film polyurea anticorrosion waterproof protective coating, after matching application with primer, it has high adhesive strength with concrete and steel structure. With its unique chemical structure, it has excellent chemical resistance; high strength and high flexibility, the coating film has high abrasion resistance and tensile strength. High solid content makes the application safer and more eco friendly. One stop thick application, fast cure that is able to apply on vertical surface, easy to apply without need of polyurea special machine.

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Features and benefits

* high solid content, low VOC

* easy application method, use scraper to scratch the coat. Fast cure, can be applied on vertical surface

* excellent wearable, impact resistance, resistance to scratch

* excellent waterproofing

* excellent resistance to chemical media, can withstand certain concentration of acid, alkali, oil, salt and organic solvent

* wide application temperature, can be applied on -50℃~120℃

Application scopes

Construction, water conservancy, transportation, chemical industry, electric power, highway asphalt pavement, cement pavement crack repair, airport runway crack repair, reservoir water conservancy dam, repair of cracks in coastal dykes and dams, etc.

Product information

Item	Results
Appearance	Color is adjustable
Specific gravity (g/cm³⁾）	1.3
Viscosity (cps )@20℃	800
Solid content (%)	≥95
surface dry time (hrs)	1-3
Pot life (hrs)	20min
theoretical coverage	0.7kg/m²(thickness 500um)

Physical properties

Item	Test standard	results
Hardness (Shore A)	ASTM D-2240	70
Elongation (%)	ASTM D-412	360
tensile strength (Mpa)	ASTM D-412	12
Tear strength (kN/m)	ASTM D-624	55
abrasion resistance(750g/500r),mg	HG/T 3831-2006	9
Adhesive strength (Mpa) steel base	HG/T 3831-2006	9
Adhesive strength (Mpa) concrete base	HG/T 3831-2006	3
impact resistance (kg.m)	GB/T23446-2009	1.0
Density (g/cm³⁾	GB/T 6750-2007	1.2

Chemical properties

Acid resistance 30%H₂SO₄or10%HCl,30d	no rust, no bubbles, no peel off
Alkali resistance 30%NaOH, 30d	no rust, no bubbles, no peel off
Salt resistance 30g/L,30d	no rust, no bubbles, no peel off
Salt spray resistance, 2000h	no rust, no bubbles, no peel off
Oil resistance	no bubbles, no peel off
0# diesel, crude oil, 30d	no rust, no bubbles, no peel off
(For reference: pay attention to the influence of ventilation, splash and spillage. Independent immersion testing is recommended if requiring detail data.)

Application instructions

Environment temperature: -5 ~35℃

Relative humidity: 35-85%

Dew point: when apply on metal surface, the temperature must be 3℃ higher than dew point.

Application guidance

Recommended dft: 500-1000um (or depend on the design requirement)

Recoat interval: 2-4h, if exceed 24h or have dusts on the surface, use sandpaper to blasting and the apply.

Recommended application method: use scraper to scratch.

Notice

It can be used in the temperature of below 10℃. When apply in extreme low temperature, keep the coating barrel in the air conditioning room for 24 hrs.

SWD advises to mix the coating barrel uniform, seal the package well after use to avoid moisture absorption. Not to put the poured out material into the original barrel again.

Viscosity is fixed before shipped, thinner shall not be random added. Instruct the manufacturer in special situation to add thinner.