| Color: | Clear |
|---|---|
| Appearance: | Liquid |
| Main Raw Material: | Polyurethane |
| Method: | Brush |
| Level: | Primer |
| Drying Method: | Moisture Cured |
| Samples: |
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| Customization: |
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STWD8007 one component sealing penetration concrete special polyurea primer takes high performance polyurethane resin pre polymer as main film material. It cures after absorption and reaction with air moisture, it has high fluidity and strong penetration into the substrate, good sealing and has high adhesive strength. The coating film is eco friendly, easy to apply, it has been widely applied on concrete and other substrate to greatly increase the coating performance.
Features and benefits
* greatly increase the adhesive strength of concrete substrate and coatings
* low viscosity, high fluidity
* excellent wetting property
* excellent sealing and penetration property
* excellent anticorrosion property
* excellent waterproof moisture resistance
* good compatible with the following coating film
* avoid bubbles and increase the service life
* one component material, easy to apply without need of mix
* high coverage rate to save cost
Application scopes
Substrate surface anticorrosion coating for concrete, marble, ceramic tiles and wood.
Product information
| Item | Results |
| Appearance | Transparent colorless |
| Specific gravity(g/m³) | 1.02 |
| Viscosity (cps)@25ºC | 210 |
| Solid content (%) | ≥65 |
| Surface dry time (h) | 1-3 |
| Recoating interval (h)@25ºC | 3-24 |
| Pot life (h) | 1 |
| Theoretical coverage (DFT) | 0.08kg/m2 film thickness 40μm |
| Item | Test standard | Results |
| Adhesive strength (dry concrete surface)) | ASTM D-3359 | 2.9 |
| Impact resistance (kg.cm) | GB/T 1732 | 60 |
| Abrasion resistance (750g/500r) mg | GB/T 1732 | 12 |
| Temperature variation (-40+150ºC) 24h | GB/9278-1988 | Normal |
| Density g/cm3 | GB/T 6750-2007 | 1.02 |
| Acid resistance 40%H2SO4 or 10%HCI,30d | no rust, no bubbles, no peel off |
| Alkali resistance 50%NaOH, 30d | no rust, no bubbles, no peel off |
| Salt resistance 50g/L, 30d | no rust, no bubbles, no peel off |
| Salt spray resistance 1000h | no rust, no bubbles, no peel off |
| Oil resistance, 0# diesel, 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 requires other specific data) | |
Application environment
Environment temperature: -5 ~+ 35ºC
Relative humidity: RH%:35-85%
Dew point: ≥3ºC
Application guide
Recommend dft: 20-40μm
Recoating interval time: 3-24h
Recommended coating method: brush, roller, airless spray, air spray
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