ThermaGlas Multiwall Structured Polycarbonate Sheets
ThermaGlas® Multi-wall Polycarbonate Sheet is designed and engineered specifically for commercial greenhouse use. ThermaGlas products are available in 4-foot or 6-foot widths in clear, or with specially formulated colors and tints. ThermaGlas offers 99.5% UV protection.
The multiwall design and light weight of the sheet enables a reduction in the cost of the supporting structure. Shatterproof polycarbonate coupled with integrated UV resistant co-extruded layer yields long service periods backed up by a 10 year limited warranty.
The cellular multi-layer structure reduces heating costs in winter while minimizing excessive heat in summer. A special coating on the bottom side eliminates condensation dripping. ThermaGlas blocks ultraviolet rays that burn plants and living tissues, and transmits only beneficial radiation.
Applications
- Greenhouses
- Garden centers
- Other agricultural covering applications
ThermaGlas
Features
- Superb thermal insulation—saves energy
- Impact resistance—virtually unbreakable
- Light weight
- Weather and UV resistant
- Low flammability (available with CC1 rating)
- Easy to work with and install using ordinary tools
- Rigid, yet capable of cold-forming to an arch
- Wide service temperature range
- 10-year limited warranty
- Available in 47-1/4″ , 48″ , 71-1/4″ and 72″ widths
Availability
| Dimensions | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Product | Thickness | Rib Spacing | Standard Widths | Weight | Lengths | Colors | ||||
| mm | in. | mm | in. | mm | in. | g/m2 | psf | ft. | ||
Twin-Wall | 4 | 5/32 | 6 | ~1/4 | 1200 1220 1810 1830 2100(1) | 47.25 48 71.25 72 82.68(1) | 777 | 0.16 | 24' in stock. Available up to 39' (3) | Clear Opal Bronze Solar Control |
| 6 | 1/4 | 6 | ~1/4 | 1300 | 0.27 | |||||
| 8 | 1500 | 0.35 | ||||||||
| 10 | 1700 | 0.35 | ||||||||
Triple-Wall | 8(1) | 1700 | 0.35 | 24' in stock. Available up to 39' (2) | Clear Opal Bronze Solar Control |
|||||
| 10(1) | 1990 | 0.41 | ||||||||
| 16 | 1200 | 47.25 | 2670 | 0.55 | ||||||
12100mm (82.68″) wide panels not available in all thicknesses
2Please note that panels longer than 20′ are not recommended due to expansion and contractions and also may require a longer lead time and additional freight surcharges.
Technical Specifications
| Dimensions | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Product | Thickness | Rib Spacing | Standard Widths | Weight | Lengths | Colors | ||||
| mm | in. | mm | in. | mm | in. | g/m2 | psf | ft. | ||
| Twin-Wall | 4 | 5/32 | 6 | ~1/4 | 1200 1220 1810 1830 2100(1) | 47.25 48 71.25 72 82.68(1) | 777 | 0.16 | 24' in stock. Available up to 39' (3) | Clear Opal Bronze Solar Control |
| 6 | 1/4 | 6 | ~1/4 | 1300 | 0.27 | |||||
| 8 | 5/16 | 10 | ~3/8 | 1500 | 0.35 | |||||
| 10 | 3/8 | 10 | ~3/8 | 1700 | 0.35 | |||||
| Triple-Wall | 81 | 5/16 | 20 | ~13/16 | 1700 | 0.35 | 24' in stock. Available up to 39' (2) | Clear Opal Bronze Solar Control |
||
| 101 | 3/8 | 20 | ~13/16 | 1990 | 0.41 | |||||
| 16 | 5/8 | 20 | ~13/16 | 1200 | 47.25 | 2670 | 0.55 | |||
12100mm (82.68″) wide panels not available in all thicknesses.
2 Please note that panels longer than 20′ are not recommended due to expansion and contractions and also may require a longer lead time and additional freight surcharges.
| Thermal | Value | Test Method | ||
|---|---|---|---|---|
| No. of Layers | Panel Thickness | R-Factor | U-Factor | |
| Twin-Wall | 4mm | 1.49 | 0.67 | ASTM C-177 |
| 6mm | 1.62 | 0.62 | ||
| 8mm | 1.72 | 0.58 | ||
| 10mm | 1.89 | 0.53 | ||
| Triple-Wall | 8mm | 1.99 | 0.50 | |
| 10mm | 2.08 | 0.47 | ||
| 16mm | 2.36 | 0.42 | ||
| Optimal Service Temperature Range | -40° F to +248° F (-40° C to ± 120° C) | ASTM D-648 | ||
| Maximum Service Temperature | 270° F (132° C) | |||
| Minimum Service Temperature | - 103° F (-75° C) | |||
| Heat Deflection Temperature (Load: 264 PS) | 275° F | |||
| VICAT Softening Temperature (Load: 2.2 lb.) | 300° F | ASTM D-1525 | ||
| Coefficient of Linear Thermal Expansion | 3.6 x 10(5)in./in.°F | ASTM D-696 | ||
| Thermal Conductivity (BTU-in/hr-ft2- °F) | 1.45 | ASTM C-177 | ||
| Mechanical | ||
|---|---|---|
| Tensile Strength At Yield (0.4 in./min.) | 9,400 psi | ASTM D-638 |
| Tensile Strength At Break (0.4 in./min.) | 8,800 psi | |
| Elongation At Yield (0.4 in./min.) | 6% | |
| Elongation At Break (0.4 in./min.) | > 90% | |
| Tensile Modulus of Elasticity (0.4 in./min.) | 350,000 psi | |
| Flexural Modulus (0.052 in./min.) | 380,000 psi | ASTM D-790 |
| Flexural Strength At Yield | 14,500 psi | ASTM D-790 |
| Rockwell Hardness | 118 R Scale | ASTM D-785 |
| Density | 75 lb/ft(3) | ASTM D-792 |
| Specific Gravity | 1.2 g/cc | ASTM D-792 |
| Optical | ||||||||
|---|---|---|---|---|---|---|---|---|
| Property | Test Method | Panel Thickness | Clear | White Opal | Gray | |||
| Twin Wall | Triple Wall | Twin Wall | Triple Wall | Twin Wall | Triple Wall | |||
| PAR Light Transmission (see next page for more information about PAR Light) | ASTM D-1003 | 4mm | 82% | 30 | 35% | |||
| 6mm | 80% | 20 | 35% | |||||
| 8mm | 80% | 76% | 45% | 45% | 35% | 35% | ||
| 10mm | 79% | 76% | 30% | 45% | 35% | 35% | ||
| 16mm | 76% | 35% | 35% | |||||
| Refractive Index | ASTM D-542 | All thicknesses | 1.59 | |||||
| Yellowness Index | ASTM D-1925 | All thicknesses | < 1 | |||||
| Fire / Ignition / Smoke | Value | Test Method |
|---|---|---|
| Flammability Rating | CC1 † | ASTM D-635-74 |
| Self Ignition | 1000°F | ASTM D1929 |
| Flash Ignition | 930°F | ASTM D1929 |
| Smoke Density (%) | 8.6% | ASTM D2843 |
| Smoke Developed | 350 (Class A) | ASTM E-84 |
| Flame Spread | 15 (Class A) | ASTM E-84 |
| Vertical Burning | UL94-5VA | UL94-1998 |
ThermaGlas Solar Soft 80
SolarSoft diffuses light that is transmitted through the sheet, while transmitting a high level of PAR light (80%). The mechanical properties of ThermaGlas® SolarSoft can be considered the same as other types of ThermaGlas, such as clear and White/Opal.
Diffusing the sun’s direct radiation has been found to be beneficial for plants. With ThermaGlas SolarSoft, plants or flowers get very high levels of PAR light, but direct radiation of infrared is removed, which helps to reduce leaf temperature and plant burning. Furthermore, light penetrates deeper into the canopy, improving plant growth.
SolarSoft can also be beneficial for humans. A person standing under ThermaGlas SolarSoft, while receiving almost the same amount of light as with Clear, will not feel harsh heat-giving radiation from the sun, and therefore will feel much more comfortable.
The SolarSoft resin component is UV protected with the same co-extrusion protection as all other ThermaGlas products. (99.9% UV protection).
ThermaGlas Multi-wall Polycarbonate Sheet is designed and engineered specifically for commercial greenhouse use. ThermaGlas products are available in 4-foot or 6-foot widths in clear, or with specially formulated colors and tints. ThermaGlas offers 99.5% UV protection. The multiwall design and light weight of the sheet enables a reduction in the cost of the supporting structure. Shatterproof polycarbonate coupled with integrated UV resistant co-extruded layer yields long service periods backed up by a 10 year limited warranty.
The cellular multi-layer structure reduces heating costs in winter while minimizing excessive heat in summer. A special coating on the bottom side eliminates condensation dripping. ThermaGlas blocks ultraviolet rays that burn plants and living tissues, and transmits only beneficial radiation.
Features and Benefits
- Superb thermal insulation—saves energy
- Impact resistance—virtually unbreakable
- Light weight
- Weather and UV resistant
- Low flammability (available with CC1 rating)
- Easy to work with and install using ordinary tools
- Rigid, yet capable of cold-forming to an arch
- Wide service temperature range
- 10-year limited warranty
- Available in 47-1/4″ , 48″ , 71-1/4″ and 72″ widths
Table of Typical Properties
See the ThermaGlas Technical and Installation Guide for additional specifications and details.
| Other Properties | |||
|---|---|---|---|
| Twin-Wall Profile | Sheet Thickness | Weight | Minimum Radius for Cold Bending |
| 8mm | 1500 g/m(2) | 1.4m | |
| 5/16" | .31 lb/sf | 55" | |
| Standard Widths | Optional Widths | Standard Length† | |
| 48",72" | 47.25",71.25" | 24' | |
*Minimum purchase requirements may apply
Lengths up to 48′ are available with minimum purchase requirements. Installed lengths are recommended to be 24′ or less.
| Type of ThermaGlas and Pigmentation | |||
|---|---|---|---|
| Property | Clear | SolarSoft 80 | White/Opal |
| Light Transmission | 80% | 80% | 45% |
| Diffusion (Haze) | 22% | 95% | 100% |
| Light Transmission Characteristics of ThermaGlas Products | ||
|---|---|---|
| Clear | SolarSoft 80 | White/Opal |
 |  |  |
| 80% PAR Light Transmission 22% Diffusion (Haze) | 80% PAR Light Transmission 95% Diffusion (Haze) | 45% PAR Light Transmission 100% Diffusion (Haze) |
Technical Specifications
| Dimensions | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Product | Thickness | Rib Spacing | Standard Widths | Weight | Lengths | Colors | ||||
| mm | in. | mm | in. | mm | in. | g/m2 | psf | ft. | ||
Twin-Wall | 4 | 5/32 | 6 | ~1/4 | 1200 1220 1810 1830 2100(1) | 47.25 48 71.25 72 82.68(1) | 777 | 0.16 | 24' in stock. Available up to 39' (3) | Clear Opal Bronze Solar Control |
| 6 | 1/4 | 6 | ~1/4 | 1300 | 0.27 | |||||
| 8 | 5/16 | 10 | ~3/8 | 1500 | 0.35 | |||||
| 10 | 3/8 | 10 | ~3/8 | 1700 | 0.35 | |||||
Triple-Wall | 8(1) | 5/16 | 20 | ~13/16 | 1700 | 0.35 | 24' in stock. Available up to 39' (2) | Clear Opal Bronze Solar Control |
||
| 10(1) | 3/8 | 20 | ~13/16 | 1990 | 0.41 | |||||
| 16 | 5/8 | 20 | ~13/16 | 1200 | 47.25 | 2670 | 0.55 | |||
1 2100mm (82.68″) wide panels not available in all thicknesses.
2 Please note that panels longer than 20′ are not recommended due to expansion and contractions and also may require a longer lead time and additional freight surcharges.
| Thermal | Test Method | |||
|---|---|---|---|---|
| No. of Layers | Panel Thickness | R-Factor | U-Factor | |
| Twin-Wall | 4mm | 1.49 | 0.67 | ASTM C-177 |
| 6mm | 1.62 | 0.62 | ||
| 8mm | 1.72 | 0.58 | ||
| 10mm | 1.89 | 0.53 | ||
| Triple-Wall | 8mm | 1.99 | 0.50 | |
| 10mm | 2.08 | 0.47 | ||
| 16mm | 2.36 | 0.42 | ||
| Optimal Service Temperature Range | -40° F to +248° F (-40° C to ± 120° C) | ASTM D-648 | ||
| Maximum Service Temperature | 270° F (132° C) | |||
| Minimum Service Temperature | -103° F (-75° C) | |||
| Heat Deflection Temperature (Load: 264 PS) | 275° F | |||
| VICAT Softening Temperature (Load: 2.2 lb.) | 300° F | ASTM D-1525 | ||
| Coefficient of Linear Thermal Expansion | 3.6x 10(5) in./in.°F | ASTM D-696 | ||
| Thermal Conductivity (BTU-in/hr-ft(2)- °F) | 1.45 | ASTM C-177 | ||
| Mechanical | ||
|---|---|---|
| Tensile Strength At Yield (0.4 in./min.) | 9,400 psi | ASTM D-638 |
| Tensile Strength At Break (0.4 in./min.) | 8,800 psi | |
| Elongation At Yield (0.4 in./min.) | 6% | |
| Elongation At Break (0.4 in./min.) | > 90% | |
| Tensile Modulus (0.052 in./min.) | 350,000 psi | |
| Flexural Modulus (0.052 in./min.) | 380,000 psi | ASTM D-790 |
| Flexural Strength At Yield | 14,500 psi | ASTM D-790 |
| Rockwell Hardness | 118 R Scale | ASTM D-785 |
| Density | 75 lb/ft(3) | ASTM D-792 |
| Specific Gravity | 1.2 g/cc | ASTM D-792 |
| Optical | ||||||||
|---|---|---|---|---|---|---|---|---|
| Property | Test Method | Panel Thickness | Clear | White Opal | Gray | |||
| Twin Wall | Triple Wall | Twin Wall | Triple Wall | Twin Wall | Triple Wall | |||
| PAR Light Transmission (see next page for more information about PAR light) | ASTM D-1003 | 4mm | 82% | 30 | 35% | |||
| 6mm | 80% | 20 | 35% | |||||
| 8mm | 80% | 76% | 45% | 45% | 35% | 35% | ||
| 10mm | 79% | 76% | 30% | 45% | 35% | 35% | ||
| 16mm | 76% | 35% | 35% | |||||
| Refractive Index | ASTM D-542 | All thicknesses | 1.59 | |||||
| Yellowness Index | ASTM D-1925 | All thicknesses | < 1 | |||||
| Fire / Ignition / Smoke | Value | Test Method |
|---|---|---|
| Flammability Rating | CC1 † | ASTM D-635-74 |
| Self Ignition | 1000°F | ASTM D1929 |
| Flash Ignition | 930°F | ASTM D1929 |
| Smoke Density (%) | 8.6% | ASTM D2843 |
| Smoke Developed | 350 (Class A) | ASTM E-84 |
| Flame Spread | 15 (Class A) | ASTM E-84 |
| Vertical Burning | UL94-5VA | UL94-1998 |
Patch Tape
A clear 9-mil polyethylene UV stabilized one-sided tape used to patch small holes in the film.
Sizes available:
2″ X 108′ (48 mm X 33 m)
4″ X 108′ (96 mm X 33 m)
6″ X 108′ (144 mm X 33 m)
An acrylic UV stabilized two-sided tape used to seam two pieces of plastic together.
Batten Tape
2.75” wide Polypropylene tape in black or white color.
Used to lash down Poly Film on the greenhouse
