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Bad Things About PVC Foam Sheet You Should Know

Bad Things About PVC Foam Sheet You Should Know

Jun 8,2022
What is PVC Foam Board?

PVC foam board, also known as expanded PVC sheet. It is a rigid, closed-cell, foamed PVC sheet with half the density of solid PVC sheet, which gives it a lighter weight. PVC foam board is suitable for most indoor and outdoor applications due to its high usability and durability, and is an ideal alternative to wood board. PVC foam board is widely used as a multifunctional board, such as sign boards, display boards, kitchen cabinets, interior decoration, wall panels and construction. However, do you know what are the disadvantages of PVC foam board?

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PVC Free Foam Board
PVC Free Foam Board
PVC Celuka Foam Board
PVC Celuka Foam Board
PVC Co-extruded Foam Board
PVC Co-extruded Foam Board


You Told Me Not to Choose PVC Foam Board, Why?
1. Not heat-resistant
The softening temperature of PVC foam board typically ranges from 65°C (149°F) to 80°C (176°F). This implies that in environments with temperatures exceeding this range, PVC foam board can become soft and may even lose structural stability. Using PVC foam board in high-temperature conditions could result in material deformation, failure, or performance degradation.
2. Lacks natural wood grain
While PVC foam board, as a synthetic material, lacks the natural grain patterns found in solid wood, this characteristic doesn't preclude us from enhancing its appearance by applying laminated decorative materials to its surface. This method allows us to achieve a wood-like texture and look, while still benefiting from PVC foam board's advantages like lightweight, insulation, and ease of fabrication.
3. White PVC foam boards may yellow when used outdoors
White PVC foam boards used outdoors may develop a yellowing effect over time. Although the yellowing is typically mild, it might still be unsatisfactory for some customers. We recommend customers consider purchasing ivory-white PVC foam boards instead of pure white ones, or opt for PVC foam boards with enhanced UV resistance to mitigate this issue.
4. Weak screw holding strength
Concerns about the screw-holding capacity of PVC foam boards are often rooted in comparisons with solid wood. This discrepancy arises from the inherent contrast between the expanded closed-cell structure of PVC foam and the wood fiber structure. Nonetheless, we can enhance the screw-holding strength of PVC foam boards through more effective fasteners and installation methods. Furthermore, higher-density PVC foam boards exhibit improved screw-holding capabilities.
5. PVC is toxic when burned
Polyvinyl chloride (PVC), when burned, can release harmful substances such as chlorine gas, hydrogen chloride gas, and carbon monoxide. These gases and smoke have the potential to pose health risks to human beings. Generally, PVC begins to degrade and release toxic gases within a temperature range of approximately 150°C (302°F) to 200°C (392°F).




Despite these limitations, PVC foam boards offer a range of advantageous qualities that make them a valuable choice for various applications. Let's explore the benefits they bring to the table.

Advantages of PVC Foam Board
1. Lightweight for Effortless Handling and Installation
The density of standard PVC foam board typically ranges from 0.5 to 0.65g/cm3, which is less than half that of solid PVC sheets and comparable to some wood panels. This lightweight property ensures easy handling and straightforward installation.
2. Water and Moisture Resistance
PVC foam board exhibits minimal water absorption, making it highly resistant to water and moisture. This quality proves invaluable in humid environments.
3. Corrosion Resistance
Polyvinyl chloride boasts resistance to acids, alkalis, and a range of chemicals, mitigating concerns about corrosion or rust in practical applications.
4. Termite and White Ant Resistance
PVC foam board is unappealing to termites and white ants, rendering indoor furniture crafted from it unattractive to these pests.
5. Self-Extinguishing Fire Resistance
Common PVC foam board possesses self-extinguishing properties in fire conditions. Fireproof reinforcement variants can even meet ASTM E84 Class A standards.
6. UV Resistance
PVC foam boards, compared to wooden counterparts, resist crushing and cracking in outdoor use, contributing to a longer service life. UV-resistant variants perform exceptionally well, especially when enhanced with anti-ultraviolet agents.
7. High Strength
Depending on its density, PVC foam board can exhibit remarkable rigidity or flexibility, catering to varying strength requirements.
8. Ease of Processing
PVC foam board can be conveniently drilled, nailed, sawed, CNC cut, hot bent, laminated, sanded, and painted without the need for specialized equipment or tools.
waterproof pvc foam board
Waterproof PVC foam board
PVC foam board CNC cutting
CNC cutting
PVC foam board screw
Screw
Insert bolt to pvc foam board
Insert bolt
9. Printable
PVC free foam board, one of three types of PVC foam board, offers a matte finish and ample size, making it ideal for printing and signage applications.
10. Versatile Design Flexibility
PVC foam boards excel in design versatility, offering an array of possibilities for cutting, shaping, and customization. This adaptability allows for the creation of intricate and diverse designs, making them suitable for a wide range of creative and practical applications.

Understanding the drawbacks of PVC foam boards may not necessarily steer us away from them. Rather, it prompts us to combine their strengths and weaknesses for more judicious applications across various industries. In the upcoming blog posts, we will delve into how we, as PVC foam board manufacturers, are contributing to the recycling and reutilization of these materials. By embracing a holistic perspective, we aim to make the most of PVC foam boards while also addressing environmental considerations.
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Boardway Warehouse
Boardway is a Chinese manufacturer and supplier of PVC foam board. We have more than 15 years of experience in the manufacture and application of PVC foam board and other plastic sheets. If you would like to know more about PVC foam board, or you have the needs of custom PVC foam board, please feel free to WhatsApp Helen at +86 13828266785 or email us at sale@boardwaybuilding.com.
Boardway Processing Services

1. Cut to size and CNC engraving
2. Silk screen printing, digital printing, painting
3. Thermal processing, bending, embossing
4. Pre-drill, nail, screw and assemble
5. Sanding, PUR lamination, PVC edge banding
6. Corners and edges rounding, chamfering, grooved and tongued

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