Heat Insulation Prepainted Steel Coils
|Definitions Heat Insulation Prepainted Steel Coils|
| pre-painted steel sheets all use a 2 coat 2 bake system (2C2B) with solar reflective pigments infused into topcoats such as Polyester(PE),Silicone Modified Polyester(SP) and Fluorocarbon (VF)respectively. 20 means
dry film thickness of topcoats mentioned above.As for the substrates, except for hot-dip zinccoated steel sheets, a letter suffix F or L following the
number 20 refer to 5% Al-Zn alloy and 55% Al-Zn alloycoated steel sheets respectively. With high solar reflectance and high thermal emittance, it can reduce the heat transfer to interior and lower air-conditioning expense
|1.High TSR (TSR, total solar reflectance)-
The average total solar reflectance of 0.25 or more.Different colors have different TSR parameter.For more information,please ctc with us.
|2.Indoor temperature reduction( T) -Cooling effciency compared with conventional coated steel sheets are show below :|
|Item||Heat Insulation||Conventional PE/SMP/PVDF Coatings|
|Cool Effects (by colors)||cool down 1-50C||no cool effects|
|3 years later||>=20%|
|pre-painted steel coils are suitable for roofing and siding applications in light industrial, residential, suburban and agricultural areas.They can be used in the
manufacture of the storerooms and garages that require thermal insulation.
|Type of Base Metal|
|Electro Galvanized base metal，Cold-rolled base metal，hot dipped zinc coated base metal，hot dipped Al-Zn base metal|
|Types of top coatings|
|Metal Embossed,Cedar Wood,Stucco,Leather,Protective film can be applied|
|Primer:PU or Epoxy 5micro|
|Back Primer:PU or Epoxy 2micro|
|Back Coate:PU or Epoxy 5-12micro|
Generally speaking,reflection factors depend on the colors.Compared with dark
colored steel sheets, lighter colored steel sheets reflect more heat and
contribute more cool effects. If you have any further questions,Pls inform us.