General Purpose Clear Silicone Sealant – Waterproof & Anti-Fungal

Our General Purpose Clear Silicone Sealant is a versatile, high-performance sealant designed to create a durable, waterproof barrier around shower panels, bathroom wall panels, trims and other surfaces exposed to moisture.

Manufactured using a mid-modulus silicone formulation, this clear sealant adheres to most smooth, non-porous surfaces, forming a strong, permanently flexible rubber seal that accommodates minor movement without cracking or losing adhesion.

Its transparent finish makes it particularly suitable for bathroom and shower panel installations, where a discreet, professional appearance is essential.

The silicone also contains an anti-fungal additive, helping inhibit mould growth in humid environments such as bathrooms, shower enclosures, kitchens and utility rooms.

Why Use Silicone When Installing Shower & Bathroom Wall Panels?

Although many waterproof wall panels feature tongue-and-groove connections, correctly sealing the joints and trims is essential to prevent water from penetrating behind the panels.

Water entering an unsealed joint can become trapped behind the wall covering, potentially causing dampness, mould growth or damage to the underlying surface. This is particularly important when installing panels manufactured with plywood or MDF cores, which must be protected against moisture.

Our Clear General Purpose Silicone helps create a continuous waterproof barrier at vulnerable points throughout the installation.

Sealing Internal Corner Trims

Internal corner trims are used where two shower or bathroom walls meet, creating a neat, professional finish while accommodating the edges of adjoining panels.

Before inserting the panels, apply a continuous bead of clear silicone inside the trim channels, following the panel manufacturer's fitting instructions.

This helps seal the connection between the panel edges and the internal corner trim, preventing water from travelling through the joint and reaching the wall behind.

Correctly sealed internal corners are particularly important inside shower enclosures, where these areas are frequently exposed to running water.

Sealing End Cap Trims

End cap trims provide a decorative finish to exposed panel edges, concealing the panel core and creating a clean transition between the wall panel and surrounding surfaces.

Applying clear silicone inside the end cap before fitting helps create a waterproof barrier around the exposed panel edge.

This is especially important for plywood and MDF-based shower panels, where moisture entering an unprotected edge can cause swelling or deterioration over time.

The clear silicone provides a discreet finish while helping protect the panel and underlying wall structure.

Sealing Tongue & Groove (T&G) Panel Joints

Many bathroom and shower wall panels feature a tongue-and-groove (T&G) joining system, allowing adjacent panels to interlock for a neat, closely fitted finish.

Where the panel manufacturer's instructions require silicone sealing, apply a suitable continuous bead along the specified tongue-and-groove channel before connecting the panels.

As the panels are joined, the silicone helps create a watertight seal within the connection, reducing the risk of moisture passing through the joint and reaching the wall behind.

This additional protection is particularly valuable in shower enclosures, wet areas and other locations exposed to regular water contact.

Always follow the manufacturer's instructions, as some proprietary panel systems require specific sealants or joint-sealing methods.

Features & Benefits of Clear General Purpose Silicone

• Waterproof Seal: Creates a strong barrier against water penetration around suitable panel joints, trims and edges.

• Permanently Flexible: Accommodates minor movement and expansion without becoming rigid or brittle.

• Anti-Fungal Protection: Contains an additive that helps inhibit mould growth in humid environments.

• Clear Finish: Provides discreet sealing without introducing a contrasting colour.

• Quick Curing: Designed to cure efficiently while helping minimise dirt pick-up.

• Low Viscosity: Allows smooth application and easier distribution within suitable joints and trim channels.

• Strong Adhesion: Bonds to many smooth, non-porous surfaces.

• Versatile Application: Suitable for a variety of bathroom, kitchen and general sealing applications, subject to surface compatibility.

• Professional Finish: Helps create neat, protected joints throughout a wall panel installation.

Where Can Clear Silicone Sealant Be Used?

Our General Purpose Clear Silicone is suitable for a variety of sealing applications, including:

• Internal and external shower panel corner trims.

• End cap trims and exposed panel edges.

• Compatible tongue-and-groove panel joints.

• Shower trays and bath-to-wall junctions, where the sealant is approved for the application.

• Suitable bathroom and kitchen joints.

• Other smooth, non-porous surfaces requiring a flexible waterproof seal.

Application Advice

For the best results, ensure all surfaces are clean, dry and free from dust, grease or loose material before applying the silicone.

Apply a continuous, even bead to the required joint or trim channel, ensuring sufficient sealant is present to form a complete seal when the components are assembled.

Remove excess silicone and smooth any exposed joints using a suitable finishing tool.

Allow the sealant to cure fully before exposing the installation to water, following the manufacturer's stated curing time.

Important: Check compatibility with the wall panel material and trim finish before use. Some shower panel manufacturers specify a particular neutral-cure silicone or proprietary sealant, and those requirements should always take priority.

Buy General Purpose Clear Silicone at Wet Wall Works

Achieving a professional bathroom or shower panel installation requires more than simply fitting the panels together. Correctly sealing the internal corners, end caps and tongue-and-groove connections is essential for helping prevent water from reaching the underlying wall.

Our General Purpose Clear Silicone Sealant combines waterproof performance, anti-fungal protection and permanent flexibility in a transparent finish, making it a practical choice for compatible bathroom wall panel installations.

Shop Clear Silicone Sealant at Wet Wall Works and ensure your shower panels and trims are correctly sealed for a durable, professional finish.