SWD building external wall heat reflection coating
Descriptions
Heat is a necessary condition for human’s survival, but too much energy from sunshine and fuel becomes a pressure and burden. The accident and death toll caused from over temperature is innumerable every year in the world. Every summer, the energy consumption of air conditioning, fans and other cooling equipment occupied 30% of all the energy amount whole year which is a huge waste. The environment friendly building waterproof energy efficient cold coating developed by SWD Urethane Co., USA in 1990s can not only insulate heat and lower the building temperature, but also provide a waterproof protection layer for the building roof and wall surface. The service can reach more than 15 years and it has been widely applied in Europe and America.
Characteristics
Applied with unique formula and scientific process, SWD8005 coating takes the one component environment friendly water base macromolecule prepolymer resin as main materials. The coating film is dense, with excellent sealing and penetration resistance performance and high adhesive strength with substrate. It has high reflection rate against sunlight and hemispherical emissivity that has super heat reflection which able to adjust the temperature more than 10℃. With high performance of waterproof, erosion resistance and stain resistance, it can bear long-term outdoor application with no peel off, pulverization and yellowing. It is green and environment friendly will do no harm during application.
Specifications
Status on the container no blocks after mixing, uniform state
Application condition brush is available
Appearance normal
Hading (white or light colora) (g / m2) ≤ 150
Dry time / h Tack free time≤2, solid dry≤24
Adhesive strength(grid method)/degree ≤ 1
Impact resistance / cm ≥ 30
sunlight reflection rate 0.83
Hemispherical emissivity 0.89
Insulation temperature adjustment ≥10 ℃
Insulation temperature attenuation(white) ≤12 ℃
Tensile strength ≥1.2Mpa
Elongation ≥ 200%
Temperature variability (5 cycles): normal
Acid resistance c(5% H2 SO4) 168h normal
Salt spray resistance 1000h no bubbles no peel
Artificial weather resistance 400h no bubbles, no peel off, no crack
(White or light colored a,d) pulverization ≤1; discolor≤2 grade
Data of performance
Color Multiple colors as customers’ need
Luster glazed
Density 1.12g/cm3
Volume solid content 81% ±2%
VOC ≤10g/L
Recommended dry film thickness 150-200μm
Theoretical coverage 0.17kg/sqm (calculated by the above solids percentage and dry film thickness of 150 microns)
Practical coverage Allow appropriate loss rate
Curing mechanism room temperature cure
Tack free time 1-3h
Overcoating interval min: 3h, max: 25h
Overcoating method Airless spray, Air spray, Brush, Roller
Flash point Non flammable non explosive, safety and environmental protection
Recommend procedures:
No. | Name of the products | Layers | Dry film thickness (μm) |
1 | SWD anticorrosion primer | 1 | 50 |
2 | SWD building insulation reflection waterproof coating | 1 | 80 |
3 | SWD building insulation reflection waterproof coating | 1 | 80 |
total | | 3 | 210 |
Application scopes
Insulation protection of building roof, walls, industrial plant roof, storage tanks and other industrial equipment.