A Guide to Plastering Beads: PVC vs GalvanisedJosephSapsed
Plastering beads are an essential component in the construction and finishing of walls and ceilings. Not only do they provide structural support but also enhance the overall appearance of a plastered surface.
In this blog post, we will delve into the world of plastering beads, exploring the different types available and highlighting the key differences between PVC and galvanised. By understanding their unique properties and applications, you can make informed decisions when it comes to choosing the right bead for your specific project.
- PVC Beads: PVC (Polyvinyl Chloride) are widely used in the construction industry due to their durability and versatility. These beads are made from rigid plastic and are known for their excellent resistance to moisture and corrosion. Here are a few types of PVC and their applications:
a. External Render Beads: These are designed to reinforce and protect external render finishes. They provide a straight edge and ensure clean, sharp corners on external walls, protecting them from damage and wear.
b. Expansion Beads: Used in areas where slight movement or settlement may occur, expansion are flexible and allow for expansion and contraction without cracking the plaster. They are commonly used around windows, doors, and other areas prone to movement.
c. Angle Beads: These are used to create sharp, neat edges at internal and external corners. They provide a straight edge for plastering and protect corners from chipping and damage.
- Galvanised Beads: galvanised, also known as metal, are made from galvanised steel, which is coated with a layer of zinc to protect against rust and corrosion. These offer excellent strength and rigidity, making them suitable for demanding applications. Let’s explore the different types of galvanised beads:
a. Corner Beads: These are used to reinforce and protect the corners of walls and ceilings. They provide a straight edge for plastering and prevent cracks and chips in high-traffic areas. Galvanised corner beads are highly durable and resistant to impact.
b. Stop Beads: as the name suggests, are used to create a stopping point for plaster at door and window frames. They ensure a clean, straight edge and help prevent plaster from overflowing into adjoining surfaces.
c. Archway Beads: These specialised products are designed to create smooth, curved archways or decorative features. Galvanised are sturdy and retain their shape, allowing for precise plastering along curved surfaces.
- PVC vs. Galvanised Beads: The Differences: Both PVC and galvanised offer distinct advantages depending on the application. Here are the key differences between the two:
a. Moisture Resistance: PVC beads excel in damp or high-moisture environments. They are ideal for external render finishes and areas where moisture resistance is crucial. Galvanised are also resistant to moisture but are better suited for interior applications.
b. Strength and Durability: Galvanised beads are generally stronger and more rigid than PVC. They provide excellent protection in high-traffic areas and areas prone to impact. PVC offers flexibility, making them suitable for areas with slight movement or settlement.
c. Corrosion Resistance: PVC are highly resistant to corrosion and rust, making them an excellent choice for external applications. Galvanised are coated with zinc, providing protection against rust and enhancing their longevity.
Conclusion: When it comes to plastering, choosing the right type is essential to achieve a professional finish while ensuring durability and structural integrity. PVC, offer excellent moisture resistance and flexibility, making them ideal for external and movement-prone areas.