• Heat insulating glazing in factories,
  • Glazing in sports halls, greenhouses, hotels, public constructions
  • Light roofing in restaurants, bars and residential constructions
  • Architectural designs.
Industrial Commercial Institutional Architectural Commercial Greenhouse Residential


  • Lightweight
  • Excellent light transmission
  • Long life UV protection
  • Damage and impact resistance
  • Self-extinguishing
  • Thermal insulation
  • Withstands extreme temperatures
  • Excellent appearance


  • Energy saving
  • Contributes to obtain LEED Credits for sustainable constructions.
  ThicknessWeight (lb/ft2)Weight (g/m2)Light transmission crystalSound reduction indexCold forming radiusStandard colors
Twin Wall (2W)
4 mm0.1680082%N/A29.5 in






Smoke Grey

Pearlescent Grey




6 mm0.26130080%1039.4 in
8 mm0.30150080%N/A49.2 in
10 mm0.34170080%1659.1 in
Triple Wall (3W)
8 mm0.30150074%1451.2 in
10 mm0.34170080%N/AN/A
Triple Wall X-Structure (3WX/16)
16 mm0.50250059%2194.5 in

IQ-Relax for added heat reduction

Features advanced solar control properties, improved room comfort and high light transmission. (55.4 degrees Fahrenheit less inside temperature vs standard multiwall polycarbonate panel).

No-Drop for humid conditions

Features a special water dispensing layer that prevents drop formation in humid conditions typically found in greenhouses.


Offers an optimal combination of high light transmission from natural sunlight that enhances the photosynthesis process, and reduced temperatures by reflecting IR rays that cause extreme heat.

Double UV

Two sided UV protection for superior resistance which helps maintain long-term high light transmission and provides cutting and installation advantages.


Features a ground glass appearance, providing greater light diffusion.
Physical specification
Sheet Thickness4mm6mm8mm8mm10mm10mm16mm
StructureTwin WallTwin WallTwin WallTriple WallTwin Wall Triple WallTriple Wall X-Structure
Weight (lb/ft2)
Weight (g/m2)800130015001500170017002500
Light Transmission {%) Clear82808080808059
Light Transmission {%) Bronze52505050464631
Light Transmission (%) Opal61555454545454
Light Transmission (%) White3723191915154
Width (in.)47.25", 48", 71.25", 72" and 82.67"
Length (ft.)8', 12', 18, 36'up to 48'
Gauges4mm(3/16"), 6mm(1/4"), 8mm(5/16"), 10mm(3/8"), 16mm(5/8")
Basic colors
Technical Data
Property/ ThicknessUnit4mm6mm8mm8mm10mm10mm16mm
Structure Twin WallTwin WallTwin WallTriple WallTwin WallTriple WallTriple Wall X-Structure
Thermal Insulation BTU/hr-ft2ºF (ASTM C976/90)U-Value R- Value0.720.62 1.60.60 1.70.60 6.470.56 1.90.56 1.90.42 2.4
Cold Forming Radius (Minimum permisible)Inch29.539.449.
Heat expansion coefficientInch/ft °F4x10-44x10-44x10-44x10-44x10-44x10-44x10-4
Max. permanent service temperature w/o load°F250250250250250250250
Possible expansion due to Heat and MoistureInch/ Inch0.0030.0030.0030.0030.0030.0030.003
Weighted sound reduction indexdBN/A10N/AN/A16N/A21

Structural Considerations

Load Deflection

When Macrolux Multiwall twin wall sheet is used as a structural element in roofs and walls, the forces applied by wind and snow loads must be absorbed by a suitable structure. Also, adequate locking devices must be used to protect the whole structure (PC sheet and metal or wood structure) against wind suction.

The anticipated structural load values are specified in local building regulations. The total applicable load deflects the sheet. For safety and aesthetic reasons, the maximum bend should be limited to 5% of the dimensions of the shorter side of the sheet.

For a 4' wide sheet:

Maximum Purlin Spacing (inches) sheet deflection -1"
Load (lb-f/ft2)15304560

For a 6' wide sheet:

Maximum Purlin Spacing (inches) Sheet Deflection -1"
Load (lb-f/ft2)15304560

Heat Expansion Macrolux Multiwall PC sheet has a higher heat expansion coefficient than standard construction materials such as glass, steel and aluminum. Specific clearance between the sheet and the structural frame has to be calculated in order to ensure proper installation.

MaterialHeat Expansion Coefficient (inch/ftºF)
Macrolux Multiwall4 x 10-4
Glass5 x 10-5
Steel8 x 10-5
Aluminum1.6 x 10-4

Fire Behavior Macrolux Multiwall PC sheet is produced using high-quality polycarbonate resin made by Bayer. It does not burn easily and has been defined as a self-extinguishable material by international standards in different countries.

ASTM E84-01ClassA (NFPA); Class (UBC)
ASTM D635-74Class CC1
ASTM D2843-93Low Smoke Density (UBC standard No. 26-5)
ASTM D1929-68Self Ignition Temperature greater than 650ºCF

Light transmission

Change in the light transmission of PC sheet in time

Change in the yellowness index of PC sheet in time

TypeSettingPresentationColorApplicationLength pr Queantity
Standard U-ProfileFor 4 & 6 mm, For 8 & 10 mm
To cover the cells and prevent leaks10´ ( 3,66 mts), in pack of 10 pieces
Standard H-ProfileFor 4 & 6 mm, For 8 & 10 mm
To join multiwall panels24´ ( 7,32 mts), in pack of 10 pieces
H-Mordaza ProfileFor 4 & 6 mm, For 8 & 10 mm
To join multiwall panels24´ ( 7,32 mts), in pack of 10 pieces
Vented Tape16´, 147 ´(5 ml, 45 ml)
To seal allowing breathing the materialmin. 10 pieces
Aluminum Tape16´, 147 ´(5 ml, 45 ml)
To sealmin. 10 pieces
ButtonsFor 4 & 6 mm, For 8 & 10 mm
When perforation is absolutely necessarymin. 100 pieces
  • In order to avoid condensation in the sheet cells and sheet deterioration, always place the sheet with the cells in the vertical direction.
  • Always store the sheets in horizontal position, never against the floor. Apply aluminum tape to seal the cells after cutting the sheet. Do not walk over the sheets.
  • Do not apply direct load on the sheet with foot or knee. Use wood platforms or supports to spread out the pressure during installation.
  • Remove IIV protecting masking only and right after installation; never before
  • and never after hours of being installed.
  • Macrolux® PC sheet can be cut to size using tools for standard materials such
  • as cutters and saws. However, it is recommended the use of a table with fixed
  • knives for a cleaner cut.
  • It is not recommended to drill holes in the sheet. Rather the use of aluminum or Polycarbonate profiles to fix the sheets to the structure is recommended.
  • Never use PVC profiles when installing Macrolux®PC sheets.

Cleaning and Maintenance

  • For general cleaning it is recommended to use a non-abrasive, solvent free neutral soap with water.
  • Rinse with high-pressure washer-Use a soft cloth or sponge to loosen any remaining of dirt and grime. Never use abrasive cleaners or brushes. Do not scrub the sheet surface.
  • Never clean with gasoline, benzene or acetone.

Bonding Adhesives

It is recommended to use 100% alcoholic based silicone perimeter sealan such as DOW Corning-791 or equivalent