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What is the difference between pvc and upvc?

Time : 2022-05-02 Hits : 3

PVC (polyvinyl chloride) and UPVC (unplasticized polyvinyl chloride) are two types of vinyl. They are widely used in the construction industry due to their versatility and flexibility to produce various shapes.

However, they serve different functions. PVC is often used to make siding and fences, whereas UPVC is used for window and door construction. PVC is not suitable for window and door construction due to its chemical composition.

Properties of PVC

PVC is banned in Europe and in all toy products in the United States due to its toxic properties. PVC contains phthalates and BPA, which are chemical compounds used to plasticize vinyl and to give it its renowned flexibility. As a result, PVC is more porous and requires more maintenance over time to remove surface stains. Therefore, PVC is not often used in window and door construction.

Phthalates and BPA cause harmful effects to the environment and to our health, especially in the event of a fire when the chemicals become airborne. When exposed to high temperatures, PVC emits toxic fumes that can cause damage to several organ systems. PVC is still widely used in North America, as there are fewer environmental standards and restrictions in place compared to Europe.

Properties of UPVC

UPVC refers to unplasticized polyvinyl chloride. As the name suggests, it does not contain phthalates or BPA, rendering a safe product for the environment while still maintaining the benefits of a vinyl window frame. UPVC is a robust material, especially used in window construction due to its thermal efficiency and durability.

uPVC is a harder material than PVC due to the absence of plasticisers. They are often referred to as rigid PVC due to the absence of synthetic plastic that makes them hard and non-flexible. One of the many reasons why uPVC is an excellent material for window frames includes the fact that they are very durable and long-lasting. When larger window frames are made from uPVC, galvanised steel reinforcement is often used to improve the strength and durability of the window frames. These kinds of windows provide outstanding performance while requiring very little maintenance.

UPVC offers several additional benefits:


Less porous surface significantly reduces maintenance

High energy efficiency

Increased lifespan to last decades

Rigid and does not flex

High impact resistance Bright white frame and will maintain its colour over time

Recyclable material



●Flexible Material

●Low Cost

●Less Durable

●More porous, requires more maintenance

●Contains Toxins: Phthalates and BPA

●Limited Colour Choices


●Low Cost


●Environmentally Friendly: Recyclable, No Phthalates or BPA

●High Durability and Longevity

●Limited Colour Choices

Dimex UPVC Windows and Doors

We only use UPVC in our windows and doors to offer a high-performance and safe product to our clients. You can Choose the white, full Color (Homogeneous) or lamination for more colour options.

UPVC is an excellent choice for windows and doors due to its energy efficiency, durability, and cost effectiveness. The low conductivity of UPVC windows minimizes heat transfer in warmer climates and provides excellent thermal insulation in cooler conditions.

UPVC windows are affordable, durable, insensitive to moisture, and have low conductivity. No surprise that this material is widely used in the construction industry.

You can rest assured that your uPVC window will not warp, rot or rust. The nature and quality of the uPVC allow it to hold up against the harshest weather conditions.When it comes to maintaining your uPVC windows, there is not much to worry about – a basic clean now and then will do the trick. Unlike other materials, such as wood,u PVC windows will hold up well in any climate.

When heated, UPVC is extremely flexible. Therefore, it facilitates the shaping of the frame, such as rounded and pointed arches. However, once this material is hardened it becomes very robust. The result is a weather-resistant and maintenance-free surface.

Our selection of UPVC windows are available in a classic white frame, with additional colour foils available upon request.

Make an informed decision about the choice of materials that is best suited for your home’s location, local climate, and architecture. The right material can make a world of difference.

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+86-137 5988 1668

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Building 2, No. 567, Middle Suzhou Road, Taicang City, Jiangsu Province. 215400. China.