Pearly GRECA Series

Pearly GRECA Series Pearly GRECA Series

Pearly GRECA Series

Pearly Series – Controls heat producing Far Infrared Radiation (FIR) and Visible Light Transmission (VIS) wavelengths.
Unwanted solar radiation wavelengths are filtered out and beneficial Green light, Near Infrared (NIR) allowed to pass through.

VULCAN GRECA (76/18) Polycarbonate sheet has the widest span, at 1170mm with 16 corrugations, of all VUCAN corrugated profiles.
GRECA profile is most visible in the Americas.


VULCAN Pearly GREEN has been designed as a solar heat protection application that attenuates longer wavelength heat-producing infrared radiation very effectively through reflection, but at the same time, retains health benefiting GREEN light.  

Pearly GREEN have particle sizes in the range of 10~60μm, and is suitable for general-purpose infrared blocking applications.

Pearly GREEN reflects rather than absorbs heat producing far-red solar radiation without affecting the transmittance of the GREEN spectrum, and retains beneficial GREEN light.

This makes it easier to control the climate, particularly in the summer, and maintain optimum room temperature.*
*A large proportion of the heat increasing far-red light is reflected.

Product Strengths

Pearly GREEN Material
Designed as a solar heat protection application that attenuates longer wavelength heat-producing infrared radiation very effectively through reflection, but at the same time, retains beneficial GREEN light.
Pearly GREEN Technology
With particle sizes ranging from 10~60μm, Pearly GREEN is suitable for general-purpose infrared blocking applications.
Light Transmission Rate
Controlled VIS (380~780nm) - 40% Visible Light Transmission Rate
Excellent shading Properties
Perfect for living organisms.
Heat Reflective Properties
Controlled FIR (Far-Infrared) and NIR (Near Infrared) spectrum.  Capable of reducing temperatures up to 10°c*.
*Certain conditions may apply.
Base Material
VULCAN polycarbonate sheets use only 100% Virgin Covestro UV stabilizer included master-batch.
UV Protective Coating
Co-extruded with the Base Material, the Clariant CESA Light UV and Light Stabilizers blocks harmful UV rays from 280~400nm. With co-extruded UV protection, VULCAN Polycarbonate sheets are able to last 10 years or more.
Clean Room Manufacturing
VULCAN Sheets are produced in Class 5000 clean rooms to ensure an impeccable quality.
Production Method
Co-Extrusion ensures evenly spread, evenly thick base material and UV coating.

Material Grade

  UV 400 Coated Sheets with Pearly Green Technology
Color Pearly Red Pearly Green
Raw Material 100% Virgin polycarbonate Resin with Pearly GREEN coating
Warranty 10 year warranty: 5 for yellowing, and 10 year for usage under normal conditions. 
*Please refer to the installation instructions and list of harmful chemicals. Failure to comply shall void warranty.
Light Transmission Rate 73% 65%
UV Protection Clariant CESA-Light UV and Light Stabilizers block 99% of harmful UV rays. Double layered, Co-Extruded coating process ensures a longer lifespan compared with other product brands.
Properties Pearly Series sheets reflects NIR while letting most of the visible light through, which serves as the perfect material for greenhouse plants in tropical and subtropical countries.
Places to Use Housing, Interiors, places with living organisms 

Material Properties

Material Grades Pearly Series
Color Pearl Lilac
UV UV400 Co-Extruded
Included in Raw Material
Warranty 5yrs (Yellowing)
10yrs (Usage)
Lighting Direct    
Shading Excellent  
IR Control Excellent
PAR Control Excellent

Sheet Properties

Material Typical Properties Test Method Results Remark
Tested on 1.5mm Pearly Sheets
Tensile Strength @yield (kgf/cm²) CNS 11335 667 Should exceed 551 (kgf/cm²)
Tensile Elongation (%) CNS 11335 47 Mean Value of 3 Specimen
Impact Strength CNS 12093 No Rupture Mean Value of 3 Specimen
Change Percentage of Yellow Index (YID) after Weathering Resistance test (1200hrs) ASTM G154 (for 1 cycle)
UV-A (340nm): 60°c, 8hrs
Condensation: 50°c, 4hrs
ΔYI -0.49 Measured Wavelength
Visibile Light Transmittancy (%) ASTM D1003 30  
Ultraviolet Transmittancy (%) ASTM D1003 0.9  
Density (ρ) ASTM D792 1.19 g/cm³  
Heat Resistance CNS 12093 Burnt portion self extinguishes
after burner is removed.
Heat Reflective Properties
JIS R3106 (1998) Blocked NIR Solar Heat Gain Coefficient
Properties VULCAN Pearly GREEN sheets are co-extruded with a special pigment that blocks far-red solar radiation and allows only healthy Green light to reach organisms underneath, all of this while keeping keeping high but diffused light penetration.
Places to Use Housing, warehouse or industrial skylights, walkways, patios; basically places with living organisms.