| 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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STWD8009 two component sealing penetration concrete special polyurea primer takes high performance polyurethane resin pre polymer and high polymer as main film material. It has high fluidity and strong penetration into the substrate, seal the pinholes of concrete and has high adhesive strength. The coating film is eco friendly, it can greatly increase the adhesive strength when apply on concrete or other surface.
Product features and advantages
* greatly increase the adhesive strength of concrete substrate and coatings
* low viscosity, high fluidity
* excellent sealing and penetration property
* excellent anticorrosion property
* excellent waterproof moisture resistance
* stable resistance to temperature change
* compatible with the following coating film
* avoid bubbles and increase the service life
* high coverage rate to save cost
Application scopes Substrate surface anticorrosion coating for concrete, marble, ceramic tiles and wood.
Product information
| Item | A component | B component |
| Appearance | light yellow liquid | Color adjustable |
| Specific gravity(g/m³) | 1.02 | 1.05 |
| Viscosity (cps)@25ºC | 220 | 260 |
| Solid content (%) | >60% | >60% |
| Mix ratio (by weight) | 3 | 2 |
| Surface dry time (h) | 1-3 h | |
| Recoating interval (h) | Min 3 h; max 24h (20ºC) | |
| Theoretical coverage (DFT) | 0.09kg/m2 film thickness 50μm | |
| Item | Test standard | Results |
| Adhesive strength (dry concrete surface) Mpa | ASTM D-3359 | 3.5 ( or substrate broken) |
| Impact resistance (kg.cm) | GB/T 1732 | 60 |
| Abrasion resistance (750g/500r) mg | GB/T 1732 | 11 |
| Temperature variation (-40+180ºC) 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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