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Mapei Kerapoxy Easy Design: Technical Overview
Kerapoxy Easy Design is a two-component epoxy resin system classified as RG grout (EN 13888) and R2T adhesive (EN 12004). It delivers a smooth, compact joint with low porosity using fine glass microspheres, making it dirt-repellent and easy to clean. BioBlock® bacteriostatic technology helps inhibit mould and bacterial growth. Suitable for joints from 1–15 mm. Pot life ≈ 45 min (23 °C); light foot traffic ≈ 24 h; ready for service ≈ 4 days (pools ≈ 10 days).
Core Features & Specifications
- Dual function: High-performance decorative grout + thixotropic epoxy adhesive in one product.
- BioBlock® technology: helps protect joints from mould and bacterial growth.
- Creamy, easy-clean formula: spreads and washes off faster than conventional epoxies.
- Colour range: 41 colours (40 solid + translucent 700) with optional MapeGlitter ≤ 6 % or Mapecolor Metallic ≤ 3 % (not for pools/exterior).
- Excellent chemical & acid resistance: suitable for showers, spas, food-service areas and swimming pools.
- Temperature range: application +12 °C – +30 °C; service −20 °C – +100 °C.
- As adhesive: open time ≈ 40 min; adjustability ≈ 60 min; consumption 2–4 kg/m² depending on tile size.
The Kerapoxy Easy Design Advantage
- Delivers premium aesthetics, hygiene, and chemical durability in one solution.
- Minimises labour cost thanks to smooth spreading and quick clean-off.
- Provides consistent colour stability and long-term joint performance.
Proactive Troubleshooting
Scenario: Working beyond pot life
Potential Outcome: Stiff material, poor joint filling and reduced performance.
Solution: Mix only quantities usable within ≈ 45 minutes at 23 °C. Discard once stiffening begins.
Scenario: Adding water/solvent to extend working time
Potential Outcome: Incomplete cure and loss of chemical resistance.
Solution: Never dilute. Keep application temperature within +12 °C – +30 °C for optimum pot life.
Scenario: Using glitter/metallic effects in pools/exterior
Potential Outcome: Fading or early failure in immersed or UV-exposed conditions.
Solution: Use standard colours for pools and exterior projects.
Applications in Practice: Trade Scenarios
For Tilers: High-end Bathroom or Feature Wall
Challenge
Achieving a hygienic, decorative finish with easy on-site clean-up and colour consistency.
Solution
Its creamy body allows fast joint filling; easy emulsification shortens sponge work while leaving smooth, compact joints.
Best Practice Note
Use clean water and rinse sponges frequently to prevent haze and ensure an even finish.
For Pool Contractors: Immersed Areas
Challenge
Providing a grout/adhesive system that resists constant water and chemicals.
Solution
Use Kerapoxy Easy Design for both setting and grouting; maintain dry conditions until full cure, fill pools after ≈ 10 days.
Best Practice Note
Avoid decorative additives in immersed areas to ensure maximum colour stability and performance.
For Builders/Designers: Commercial & Retail Spaces
Challenge
Achieving a premium look with minimal downtime for follow-on trades.
Solution
Fast return to service (light traffic ≈ 24 h) supports tight construction schedules and rapid project handover.
Best Practice Note
Control temperature on site to maintain pot life and uniform colour across large areas.
Frequently Asked Questions
What joint widths can I grout with Kerapoxy Easy Design?
It is designed for 1–15 mm joints on floors and walls, including glass mosaics. Always test on porous/rough stone before full application.
Can I thin it with water or solvent to extend pot life?
No. Adding water or solvent will compromise the cure and final strength. Respect the pot life (≈ 45 min at 23 °C) and mix only the amount you can place within that window.
Is it suitable for swimming pools?
Yes. It offers excellent chemical resistance and colour stability for immersed service. Wait ≈ 10 days before filling pools. Do not use glitter/metallic versions for immersed or exterior areas.
How soon can the area be put into service?
Allow ≈ 24 h before light foot traffic, ≈ 4 days for full use, ≈ 10 days before filling pools (temperature dependent).
Applications & Benefits
| Application | Key Benefit | Primary Trades |
|---|---|---|
| Bathrooms, showers, spas | Mould-resistant, hygienic epoxy finish | Tilers |
| Commercial kitchens & food areas | Chemical & acid resistant, easy-clean | Tilers, Builders |
| Swimming pools & water features | Colour-stable, durable in immersed service | Tilers, Pool Contractors |
| Retail/showroom feature walls | Decorative finish with colour/glitter options | Builders, Designers |
| Mosaic installation (adhesive mode) | No-slip, strong epoxy bond | Tilers |
Application Instructions
Surface Preparation
Clean joints thoroughly; remove dust, laitance, and fresh adhesive residues. Joints must be dry and free of contaminants.
Mixing
Add component B into A and blend using a low-speed drill until a smooth, homogeneous paste forms. Mix only enough for 45 min working time.
Grouting
Apply with a rubber float, pressing diagonally across joints. Remove excess and immediately wash with water using a damp cellulose sponge, rinsing frequently.
As Adhesive
Spread with a notched trowel and press tiles firmly to ensure full coverage. Open time ≈ 40 min; adjustment ≈ 60 min (23 °C).
Curing
Allow ≈ 24 h for light traffic, ≈ 4 days before service, ≈ 10 days before pool immersion.
Pro Tip: For large floors, use a single-disc machine with white felt pad to assist final cleaning.
Limitations & Safety
Limitations
- Do not add water or solvents.
- Apply only at +12 °C – +30 °C; warmer temperatures reduce pot life.
- Use flexible sealants for movement joints.
- Avoid glitter/metallic versions in pools or exterior applications.
Safety
- Wear gloves, goggles and protective clothing.
- Ensure good ventilation during application.
- Refer to the Safety Data Sheet for full first aid and handling advice.
Substrate Adhesion & Preparation Guide
Cementitious Screeds & Concrete
Surface Preparation
Substrate must be fully cured (min. 1 week per cm thickness), mechanically strong, dry, and free from laitance, dust, grease, and oil.
Primer Requirements
No primer typically required
Ensure surface is sound and clean before direct application.
Gypsum & Plasterboard
Surface Preparation
Surface must be firm, completely dry, and free from dust. The surface integrity is critical for a successful bond.
Primer Requirements
Primer Required
The porous and friable nature of gypsum-based surfaces must be addressed before applying an epoxy adhesive.
Apply a coat of Primer EP or Eco Prim T to consolidate the surface and ensure a stable, reliable base for adhesion.Fibreglass
Surface Preparation
Surface must be completely clean, dry, and free from any oils, waxes, or mould-release agents.
Primer Requirements
Primer not required, but preparation is key
For maximum bond strength, it is highly recommended to lightly abrade the entire surface to a dull finish to improve the mechanical key.
Existing Ceramic Tiles or Stone
Surface Preparation
Existing tiles must be sound, well-bonded, and thoroughly cleaned to remove soap scum, oils, and grease. Mechanically abrade the glazed surface to remove the sheen and create a key for the new adhesive.
Primer Requirements
No primer required if properly prepared
A thorough mechanical abrasion is sufficient to ensure a strong bond.
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