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Step-by-Step Guide: How to Seal a Shower Tray Effectively

by E Cavendish 09 Mar 2024 0 Comments
Step-by-Step Guide How to Seal a Shower Tray Effectively

Table Of Contents:


Sealing your shower tray is a crucial task to prevent water leakage and protect your bathroom from damage. Follow this step-by-step guide to ensure a watertight seal:

What You'll Need:

  • Silicone sealant (suitable for bathrooms and mold-resistant)
  • Sealant gun
  • Masking tape
  • Scissors or a sharp knife
  • Cloth and rubbing alcohol or specialized cleaner
  • Caulking tool or plastic spoon

Step 1: Preparation

  • Clean the area where the sealant will be applied, removing old sealant and any dirt or grease.
  • Use rubbing alcohol or a specialized cleaner for thorough cleaning.

Step 2: Masking

  • Apply masking tape on both sides of the gap to be sealed, leaving a small space for the sealant.
  • This ensures a straight, professional-looking line and facilitates cleanup.

Step 3: Applying the Sealant

  • Cut the silicone sealant tube tip at a 45-degree angle to match the gap width.
  • Insert the tube into the sealant gun and apply the sealant evenly along the gap, starting at one end.
  • Aim for a smooth, consistent application to avoid bumps.

Offset Quadrant Right Hand Shower Trays

Step 4: Smoothing the Sealant

  • Wet your finger or caulking tool with soapy water to prevent sticking.
  • Gently run your finger or tool along the sealant line to smooth it out and fill the gap completely.
  • Remove excess sealant before it dries.

Step 5: Removing the Tape

  • Carefully peel off the masking tape while the sealant is still wet, pulling it away at a 45-degree angle.
  • This leaves a clean, even edge.

Rectangular Shower Trays

Step 6: Curing

  • Allow the sealant to cure completely, following the manufacturer's drying time recommendations.
  • Avoid using the shower during this period to ensure the sealant sets properly.

Tips for Success:

  • Choose high-quality silicone sealant designed for bathrooms.
  • Be patient during the drying process for a durable seal.
  • Practice applying the sealant neatly on a piece of cardboard if you're unsure.


Sealing your shower tray is a simple yet essential DIY task to prevent water damage and maintain your bathroom's integrity. By following these steps and using the right materials, you can achieve a long-lasting, watertight seal that protects your bathroom for years to come. Whether you're installing a new shower tray or maintaining an existing one, proper sealing is crucial for a functional and aesthetically pleasing bathroom.

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