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Waterproofing coating for build materials
SPU-301 is a one component moisture-curing polyurethane waterproof coating
especially used for horizontal plane. When this coating is applied on surface substrate,
it has chemical reaction with the moisture in the air, and then it will form a seamless elastomeric rubber waterproof membrane.

Undergrounds;
Parking garages;
Subways in open cut method;
Channels;
Kitchen or bathroom;
Floors, balcony and unexposed roofs;
Swimming pools, man-made fountain and other pools;
Top plate at plazas.

Good tensile strength and elongation;
Both high and low temperature resistance;
Strong adhesive;
Seamless, no pinholes and bubbles;
Resistance to long-term water erosion;
Corrosion-resisting and mould-resisting;
Convenient to apply.

Item | Requirement | Test Method |
Hardness | ≥50 | ASTM D 2240 |
Weight Loss | ≤20% | ASTM C 1250 |
Low temperature crack bridging | No cracking | ASTM C 1305 |
Film thickness(vertical surface) | 1.5mm±0.1mm | ASTM C 836 |
Adhesion-in-peel after water immersion | 175N/m | ASTM C 794 |
Optional test after adhesion in peel | No separation at surface | ASTM C 836 |
Extensibility after hear aging | 6.4mm (note 1) no cracking | ASTM C 1522 |
Stability | ≥6 months | ASTM C 836 |

SPU-301 is sealed in 20kg pails and transported in wooden cases. Each wooden case can be contained 36 pails of SPU-301.

SPU-301 materialshouldbestored by sealed pails at dry and well-ventilated places and protected from sun or rain. The temperature in stored places can not be higher than 40° C. It can not be closed to fire sources. The normal shelf life is 6 months.

SPU-301 is needed to be avoided sunshine and rain. Fire sources are forbidden during transportation.
Coverage
1.7kg per m2 gives dft 1mm minimum. Coverage may vary with the substrate condition during application.





Notice
The temperature for application of SPU-301 should be above 5℃.
SPU-301 needs to be consumed instantly and can not be diluted with solvent.
The storage and application places should be well-ventilated and no fire.

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