Stop Beads

Stop profiles (stop beads) create clean terminations and straight lines on plaster and thin-coat render. These products are designed for external wall insulation and render-only projects, with options in galvanised steel, uPVC, and aluminium to suit the job and exposure.

Stop profiles for external wall insulation and rendering systems

A stop bead sets a true edge where material is applied, protecting the finish from everyday damage. Profiles are available in multiple mm sizes so you can match coat thickness and ensure a crisp angle at heads, jambs, and base lines.

What is a stop bead?

A stop bead is a straight profile with a defined nose that provides a neat end to plaster or render. Many beads are suitable for embedding into a base coat; others are fixed to the substrate before the finish is applied. Always follow the product guidance to ensure correct use.

Types of stop profiles

Stop profiles come in a variety of materials and designs to suit different rendering and insulation applications. Choosing the right type ensures clean edges, durable protection, and a professional finish for external wall systems.

Galvanised steel stop profiles

Galvanised steel offers robust, straight edges for internal plaster and sheltered locations. A galvanised steel stop bead is easy to cut to size and is designed for speed on site. For fully exposed elevations, consider corrosion-resistant alternatives and follow manufacturer suitability notes.

uPVC and aluminium stop profiles

uPVC and aluminium options are suitable for thin-coat render and external wall insulation. These stop beads provide a stable nose, resist corrosion, and are available in several mm sizes to match the specified coat.

Applications of stop profiles

• Terminations at window heads, door jambs, and base lines.
• Break lines between finishes or colours on the same elevation.
• Setting a true angle where panels, trims, or flashings meet render.

When to use plasterboard stop bead?

Use a stop bead on plasterboard to create a straight edge at openings or abutments. The profile is fixed, then skim plaster is applied to the nose to achieve a clean line that resists minor knocks.

What is the difference between drip bead and stop bead?

A drip (bellcast) profile sheds water away from the façade; a stop bead terminates the plaster or render. For water control at bases and undersides, see our bellcast range.

Installation and use of stop profiles

Proper installation of stop profiles is essential to achieve a neat finish and long-lasting performance. When fitted correctly, they define edges, protect render terminations, and prevent cracking or water ingress in external wall systems.

How to attach a stop profile?

Measure and cut to the required mm length. Dry fit to check alignment, then fix according to the product guidance—either bed the bead into wet base coat (mesh-wing profiles) or mechanically/adhesively fix to the substrate. Ensure the nose is straight and level before the coat is applied.

How to plaster a stop profile?

Apply plaster or render up to the nose and rule off to the line. Keep the bead visible for a crisp edge, avoid overfilling, and protect the profile from impact while curing. Follow the system specification for coats and curing times.

How does a stop profile work?

The nose forms a guide so material can be ruled flat to a true angle. Once the coat has set, the result is a defined edge that is less prone to chipping on everyday projects.

Shop high quality stop beads online

Browse our stop bead selection, compare products by material and mm size, and add the right items to your basket. For related products, explore façade profiles and mesh. Check stock, delivery options, and pricing online, and follow each product page to ensure a dependable finish.