PVC Shutters Materials Explained: Composition, Processing, and Addressing Your Top Concerns

By Jason Su | Updated: 23 January, 2024

PVC Plantation Shutter Materials Proportion Diagram - NO formaldehyde in pvc shutters

PVC, also known as poly or faux wood, has become increasingly popular in the world of plantation shutters.

At Toroyal Shutters, we understand the importance of clarity regarding the materials we use. This article delves into the composition and processing of PVC shutters and addresses common concerns.

Composition of PVC Shutters

The powder of pvc shutter materials mixed with PVC, calcium powder, and processing aids
Pelletizing & Compounding - Manufacturing Process Of Poly Shutter Components
PVC Shutter Materials Component Ratio Chart

Polyvinyl Chloride (PVC)

The backbone of our plantation shutter materials, PVC, offers strength and durability. Known for its rigidity and resistance to moisture and decay, it ensures longevity and consistent performance.

Calcium Powder (Fillers)

In the formulation of our PVC shutters materials, we introduce calcium powder to augment stability and strength while ensuring cost-effectiveness. This filler enhances rigidity without compromising the shutter’s overall quality. The proportion of calcium powder directly influences the density and weight of the shutter profiles.

Processing Aids

  • Foaming Agents: These create a lightweight, cellular structure, contributing to better insulation.
  • Heat Stabilizers: Essential during manufacturing, they prevent degradation and discoloration under heat.
  • Lubricants: They aid in the smooth processing of PVC, leading to finer finishes.
  • Pigments: These ensure the shutters retain their color and offer UV resistance, preventing fading over time.

Recycled Materials

In our manufacturing process, we ensure that the addition of recycled PVC does not exceed 15%. The use of recycled materials in our shutter parts production aligns with our commitment to sustainability, while also upholding the high-quality standards Toroyal Shutters is known for.

Processing of PVC Shutters Materails

The manufacturing of PVC shutters materials involves precision and care. We combine these components at specific ratios, ensuring a perfect blend that meets our high standards. The materials undergo heating, molding, and cooling processes, resulting in shutters that are robust and aesthetically pleasing.

Pelletizing & Compounding - Manufacturing Process Of Poly Shutter Components
Pelletizing & Compounding
The main raw materials of the profiles are PVC and calcium powder, mixed with a dozen other processing aids, no matter which types of extruders, NO heavy metals or toxic substances added.
PVC Shutter Components Profiles Extrusion from poly plantation shutter materials supplier and factory
Profiles extrusion
Profile extrusion is the process of making continuous shapes of plantation shutter parts. Molten mixture is forced through a metal die and cut into the linear shape of the desired finished components.
Painting - Manufacturing Process Of Poly Shutter Components at factory
Painting
When painting the face of the profiles, will have a small amount of atomized paint adhering to back causing roughness and non-smoothness. With the special treatment, we can ensure that both sides have same smooth finishs.
Oven Drying - Manufacturing Process Of Poly Shutter Components
Oven drying
Baking in a 55℃ oven for 30 minutes allows the paint to evaporate quickly, ensuring the stability of the pvc shutter components and the spray paint.
Plastic Film Covering on PVC plantation shutter components
Plastic film covering
Plastic film faced on poly shutter parts will protect the surface and paint from scratching when cutting or assembling.
Carton packaging - Manufacturing Process Of Poly Shutter Components
Carton packing & labelling

Each piece of profile is separated by pearl cotton protetive film. 7 layers corrugated cardboard avoid damages when loading and unloading. 

Addressing Common Concerns

Are PVC Shutters Toxic?

PVC shutters are non-toxic as they are crafted from materials, including Polyvinyl Chloride (PVC) and calcium powder, without the inclusion of harmful substances like aldehydes, benzene, or toxic heavy metals.

PVC stands as a thoroughly secure material for interior window treatments, adhering to stringent safety standards. Given their non-toxic nature, PVC shutters are suitable for all environments, including homes, hospitals, and schools. They do not pose a health risk to adults, children, or pets.

1. Safe Material Composition
  • Primary Ingredients: The main materials used in PVC shutters are Polyvinyl Chloride (PVC) and calcium powder.
  • Additives: Our shutters do not contain aldehydes, benzene, or toxic heavy metals such as lead, chromium, or mercury in their additives. This ensures that the composition is free from harmful substances.
2. Low VOC Emissions
  • Formaldehyde and Benzene-Free: The materials used in PVC shutters do not release toxic gases such as formaldehyde or benzene. See Why PVC Shutters are Formaldehyde Free? The materials used in our PVC shutters have undergone rigorous testing, receiving SGS certification for VOC (Volatile Organic Compound) emissions.
3. Durability and Lack of Maintenance

Their durability means that PVC shutters do not break down or degrade easily, reducing the risk of releasing any harmful particles over time. Additionally, they do not require treatments or finishes that might involve toxic materials.

EU ROHS Directive (EU) 2015/863 amending Annex ll to Directive 2011/65/EU- Lead, Mercury, Cadmium, Hexavalent chromium, Polybrominated biphenyls (PBBs), Polybrominated diphenyl ethers (PBDEs), Bis(2-ethylhexyl) phthalate (DEHP), Butyl benzyl phthalate (BBP), Dibutyl phthalate (DBP) and Diisobutylphthalate (DIBP)

Test Method: With reference to IEC 62321-5:2013, IEC 62321-4:2013+AMD1:2017, IEC 62321-7-2:2017. IEC 62321-6:2015 and IEC 62321-8:2017, analyzed by lCP-OES, UV-Vis and GC-MS

Test ltem(s) Limit Unit MDL Result
Cadmium (Cd) 100 mg/kg 2 ND
Lead (Pb) 1000 mg/kg 2 ND
Mercury (Hg) 1000 mg/kg 2 ND
Hexavalent Chromium (Cr(VI)) 1000 mg/kg 8 ND
Sum of PBBs 1000 mg/kg - ND
Sum of PBDEs 1000 mg/kg - ND
Di-butyl Phthalate (DBP) 1000 mg/kg 50 ND
Benzyl Butyl Phthalate (BBP) 1000 mg/kg 50 ND
Diisobutyl Phthalates (DIBP) 1000 mg/kg 50 ND

Formaldehyde
Test Method: With reference to ISO 17226-1: 2008, analysis was performed by HPLC-DAD

Test ltem(s) Unit MDL Result
Formaldehyde mg/kg 16 ND

Remarks

  1. 1 mg/kg = 0.0001%
  2. MDL = Method Detection Limit
  3. ND = Not Detected ( < MDL )
  4.  “_” = Not Regulated

Are PVC Shutters Heavy?

PVC Shutters installation easily by one person and not heavy

No, PVC shutters are not heavy. Despite their robust nature, the cellular structure created by foaming agents keeps the density of PVC shutter materials generally between 0.5-0.8 g/cm³.

In comparison, commonly used wood materials like Basswood (0.37-0.51 g/cm³) and Poplar (0.35-0.49 g/cm³) and for traditional wooden shutters have similar or slightly lower densities. While PVC material is marginally heavier than wood, it remains lightweight and offers the advantage of durability and resistance.

Do PVC Shutters Turn Yellow Over Time?

PVC shutters can resist yellowing over time due to two main factors: the base material composition and the quality of surface paint.

  • Base Material: A key component in ensuring adequate UV resistance in the base material of PVC shutters is the inclusion of a sufficient amount of titanium dioxide. This additive plays a crucial role in preventing yellowing. If you notice quick discoloration or fading in the cross-section of shutter materials, it may indicate an insufficient amount of titanium dioxide, possibly due to cost-cutting measures by the manufacturer.
  • Surface Paint: Regardless of whether water-based or oil-based paints are used, long-term exposure to sunlight, climate changes, and other environmental factors can lead to fading. This is primarily due to the effects of UV rays and natural elements. However, high-quality paints can provide greater stability to the surface of the shutters, slowing down the fading process significantly.

Test Method: GB/T 14522-2008

  • Test Condition:
  • Exposure cycle:
    Cycle 1
  • Lamp type: UVA-340
    8h UV at (60+3)℃ BPT, 0.89W/(m²·nm)@340nm
    4h condensation at (50+3)℃ BPT
  • Exposure duration: 150h
Test ltem(s) Test Method Result Conclusion
Light Ageing Test-UV Exposure GB/T 14522-2008 See Below PASS
Light Ageing Test - Before Light Ageing Test - After

Overall, while PVC shutters are designed to resist yellowing, the effectiveness of this resistance depends on the quality of both the base materials and the surface paint used. High-quality shutters with adequate UV protection additives and superior paint can maintain their color and resist yellowing for a longer duration.

Excellence in Every Slat

In essence, Toroyal Shutters’ PVC plantation shutters materials blend durability, safety, and environmental sustainability. Our commitment to high-quality materials and innovative processing ensures that our shutters are not only aesthetically pleasing but also long-lasting and eco-friendly. By choosing Toroyal, customers invest in a future where quality and responsibility go hand in hand.

WELCOME!

We will contact you within 1 working day, please pay attention to the email with the suffix “@toroyalshutters.com”.

Market Development Manager at Toroyal Shutters - Jason Su

Jason Su

Market Development Manager

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