SWD9007 traffic tunnel special fire retardant  polyurea anticorrosion protective coating


SWD9007 traffic tunnel special fire retardant polyurea anticorrosion protective coating

short description:

SWD9007 traffic tunnel special fire retardant polyurea is a 100% solid content aromatic polyurea elastomer. It not only has excellent physical properties of polyurea, but also can extinguish right after being deviated from fire, now it has been widely applied in Chinese tunnel projects. 

Product Detail

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Product features and advantages

*Solvent free, 100% solid content, 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, can fast bond well on many substrate like steel, concrete, wood, fiber glass etc.

*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 maintenance cost of service life

*Extend the service life of sprayed structure

Application scopes

Fire retardant anticorrosion waterproof protection of railways, road, urban subway and other transportation facilities.

Product information

Item A B
Appearance Pale yellow liquid Adjustable color
Specific gravity (g/m³) 1.12 1.22
Viscosity (cps) @25℃ 800 880
Solid content (%)  100 100
Mix ratio (by volume)  1 1
Gel time (second) @25℃ 4-6
Surface dry time (second) 15-40
Theoretical Coverage (dft) 1.08kg/㎡ Film thickness 1mm

Physical properties

Item Test standard  Result
Hardness (Shore A) ASTM D-2240 92
Elongation rate(%) ASTM D-412 180
Tensile strength(Mpa) ASTM D-412 8
Tear strength (N/km) ASTM D-624 60
Impermeability(0.3Mpa/30min) HG/T 3831-2006 impermeable
Wearable(750g/500r)/mg HG/T 3831-2006 1.2
Adhesive strength(Mpa)concrete base HG/T 3831-2006 3.2
Adhesive strength(Mpa) steel base HG/T 3831-2006 11.3
Density(g/cm³) GB/T 6750-2007 1.08
Cathodic disbondment [1.5v,(65±5)℃,48h] HG/T 3831-2006 ≤15mm
Fire retardant GB8624-2012 B1

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