how to grout porcelain paving

Porcelain paving is one of the most stylish and durable options for patios and outdoor spaces, but to get that professional finish, you need to grout it correctly. This step is crucial for keeping your paving stable, preventing weed growth, and protecting against weather damage.

In this guide, we’ll walk you through how to grout porcelain paving using Joint-It Porcelain Epoxy Grout, a high-performance, stain-resistant solution designed for outdoor use.

Why Grouting Porcelain Paving Matters

Unlike indoor tiles, outdoor porcelain paving is exposed to rain, frost, and heavy foot traffic. Without the right grout:

  • Water can seep into the joints and cause frost damage

  • Dirt and debris can collect, leading to staining

  • Weeds may grow through the gaps

  • The slabs can shift or loosen over time

Using the right method, and the right product, will protect your investment for years to come.

Tools & Materials You’ll Need

Before you start, gather the following:

  • Joint-It Porcelain Epoxy Grout (colour of your choice)

  • Anti-bonding wax

  • Application gun

  • Protective gloves

  • Finishing tool

  • Scraper

Step-by-Step: How to Grout Porcelain Paving

Step 1: Prepare the Surface

  • Make sure the paving is completely clean and dry.

  • Remove any debris from between the slabs.

  • If the surface is dusty, sweep thoroughly before grouting.

Step 2: Apply Wax

Apply a generous film of Joint-It Anti Bonding Wax to the top of the paving slabs along both sides of the joint.

applying porcelain wax

Step 3: Apply Product

Using the application gun, slowly squeeze the product into the joints covering above the level of the tiles.

Step 4: Smooth Grout

Pull the round finishing tool along the joints to create a smooth finish.

smoothing porcelain grout

Step 5: Scrape

When the joints feel hard to touch, use a blade to peel off excess product. 

Scraping off porcelain grout

Tips for Perfect Porcelain Paving Joints

  • Work in small sections so the grout doesn’t set before you clean up.

  • Always check the weather. Avoid grouting in rain or extreme heat.

  • Use Joint-It Porcelain Epoxy Grout for narrow joints (2–5mm), ideal for porcelain paving.

Can You Use Porcelain Epoxy Grout on Natural Stone?

No, Joint-It Porcelain Epoxy Grout is formulated for the fine, narrow joints in porcelain paving, not the wider gaps found in most natural stone installations. If you have natural stone, use a jointing compound designed for that material, like Joint-It Simple. Read more about this in this article: “Can You Use Joint-It Porcelain Epoxy Grout on Natural Stone?”

The Best Choice for Porcelain Patios

If you want a durable, weatherproof, and stain-resistant finish, choose Joint-It Porcelain Epoxy Grout. It’s designed to withstand frost, UV rays, and heavy use, keeping your patio looking like new for years.

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