19/05/2025
Planning a porcelain patio this year? Whether you're a homeowner dreaming of a sleek garden transformation or a landscaper aiming to deliver a premium finish, there's one key element you can't afford to overlook: the foundation.
Why Porcelain Patios Fail
AND HOW TO AVOID IT
Porcelain paving is low-porosity, stylish, and ultra-durable — but without the right substructure, it can quickly go wrong. The most common issue? Water ingress.
If moisture seeps beneath the slabs and becomes trapped, it can lead to:
- Frost damage
- Slab movement or lifting
- Staining and algae growth
That’s why a non-permeable patio base is essential.
What Is a Non-Permeable Base?
A non-permeable base stops water from passing through and sitting under your slabs. Instead, it encourages surface runoff and keeps the area beneath your patio dry and stable.
This isn't just grout, it's a long-term investment in the life of your patio.
FOR PORCELAIN PAVING, THE GOLD STANDARD IS:
A solid concrete slab base with a slight fall for drainage
A bonding primer between the base and slabs
A non-permeable jointing compound
Benefits of Using Sika FlowFix
FOR PORCELAIN PAVING
When laying porcelain paving, the details matter. Here’swhy professionals trust Sika Flowfix:
Designed for low-porosity porcelain slabs
- Easy to apply with fast setting times
- Stain-resistant, so no unsightly marks
- Minimal maintenance for homeowners
Whether you're aiming for a sleek modern courtyard or a durable, family friendly patio, Flowfix gives you the reliability and performance you need.
The Ideal System: Sika's 2-Part FlowFix Solution
Once your base is set, you need a system that bonds your slabs securely and seals the joints from water, and Sika's FlowFix System delivers exactly that.
SikaCeram® FlowFix System – Explained
This two-part solution is purpose-built for layingporcelain patios and other low-absorbency paving:
Part A: SikaCeram® FlowFix Bonding Primer
- Applied to the back of each slab before laying
- Ensures full adhesion between slab and base
- Prevents de-bonding and movement over time
Part B: SikaCeram®-621 FlowFix Jointing Compound
- Fills the joints between porcelain slabs
- Provides a durable, non-permeable finish
- UV-resistant, frost-resistant, and easy to clean
Together, this system creates a fully bonded, sealed surface, designed to last for years with minimal maintenance.
Why Sika FlowFix Is Trusted by Pros
Whether you're installing a luxury outdoor kitchen or a sleek family patio, FlowFix is the system that gets it right, first time.
WHEN IT COMES TO PORCELAIN PATIO JOINTING COMPOUND, SIKA FLOWFIX STANDS OUT:
Designed specifically for porcelain paving
Works seamlessly with a non-permeable base
Helps prevent weed growth and water ingress
Quick and easy to apply - even on large areas
Leaves a crisp, clean finish with no staining
Laying Porcelain Paving?
DON'T CUT CORNERS
To recap:
- Use a non-permeable patio base (ideally concrete)
- Apply SikaCeram® FlowFix Bonding Primer before laying each slab
- Finish with SikaCeram®-621 FlowFix Jointing Compound for watertight, professional joints
It's not just about looks, it's about longevity, safety, and performance.
Looking for Stockists or Advice?
Need help sourcing Sika FlowFix or planning your installation?
