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At a Glance: Key Applications
Use X'traseal MC-228 for: Beautifying tile gaps with a waterproof, mildewproof, glossy sealant—perfect for kitchens, bathrooms, balconies and more.
X'traseal MC-228: A Technical Overview
MC-228 is a premium-grade gap sealant made with German nanotech-polymer technology and cosmetic-grade pigments, delivering a high-gloss, porcelain-like finish. Designed to enhance aesthetics while protecting joints, it offers quick curing, non-shrinking performance with zero VOC emissions—ideal for high-humidity environments. Whether sealing kitchen countertops or beautifying floor tile joints, MC-228 forms a durable, mildew-resistant bed that performs under heat and moisture.
Core Features & Specifications
- High-gloss, porcelain-like finish for premium aesthetics
- Zero VOC for indoor air quality and user safety
- Waterproof and mildewproof for wet-area durability
- Fast cure time – sets in 2–3 hours, full cure in 24 hours
- Compatible with a wide range of tiles including marble, ceramic, and porcelain
- Non-shrink formula maintains gap integrity over time
- Over 20 vibrant colour options mixed at point of use
The X'traseal MC-228 Advantage
- Ideal for detail-oriented finishers looking to beautify tile joints without compromising performance
- No need for additional sealers thanks to waterproof chemistry
- Safe for installers—no harmful solvents or odours
- Reduces post-install maintenance thanks to its anti-mould formulation
- Quick turnaround enables same-day installation and finishing
Cure Profile & Performance
Working time is 30–45 minutes at 25°C, allowing ample tooling time for precise application. The sealant sets within 2–3 hours and achieves full cure after 24 hours. This accelerated curing profile helps expedite project completion while ensuring lasting performance.
Application & Service Temperature Range
Apply between 15°C to 30°C for optimal flow and bonding. Once cured, the sealant remains stable from 15°C up to 120°C, making it suitable for kitchens, balconies, and sunny bathroom walls.
Chemical Profile & Substrate Compatibility
The sealant is a nanotech polymer system with 100% non-volatile content, ensuring long-term durability. Its inert, cosmetic-grade formulation resists mildew, UV, and most household cleaners. Compatible with ceramic, marble, porcelain, and granite tiles—but not suitable for polyethylene (PE), polypropylene (PP), or PTFE surfaces.
Storage & Shelf Life Considerations
Store between 5°C to 30°C in a cool, dry place. Shelf life is 24 months when stored unopened under appropriate conditions. Avoid freezing and high humidity.
Frequently Asked Questions About X'traseal MC-228
Q: Can MC-228 be used in constantly wet areas like shower recesses?
A: Yes. MC-228 is both waterproof and mildewproof, making it ideal for showers, bathrooms, and kitchens. Once fully cured, it forms a durable barrier against moisture and mould growth.
Q: What is the working time after extrusion?
A: The working life is approximately 30 to 45 minutes at 25°C. This provides sufficient time for tooling and adjustments before the sealant begins to set.
Q: How does MC-228 differ from conventional silicone sealants?
A: Unlike traditional silicone, MC-228 offers a glossy, porcelain-like finish, zero VOC, and colour customisation. It also cures faster and resists shrinkage and mildew better than standard silicone options.
Q: Can I use MC-228 on plastic substrates?
A: MC-228 is not suitable for PE, PP, or PTFE plastics due to poor adhesion. For best results, use it on ceramic, marble, granite, or similar rigid materials.
Applications & Benefits
| Application / Use Case | Key Benefit | Primary Trades |
|---|---|---|
| Kitchen tile joint finishing | Glossy, durable aesthetic resistant to food splashes | Tilers, Kitchen Renovators |
| Bathroom wall tile sealing | Mildewproof barrier that resists water and steam | Tilers, Builders |
| Balcony floor joint sealing | Handles moderate thermal expansion with glossy finish | Waterproofers, Renovators |
Applying X'traseal MC-228: Protocols & Best Practices
General Application Steps:- Preparation: Clean the tile gaps thoroughly. Use masking tape to protect tile edges and install a backer rod if needed.
- Application: Load the cartridge into a caulking gun. Dispense and discard first 30–40cm to ensure proper mixing. Apply sealant evenly.
- Tooling & Finishing: Tool within 10 minutes using a stainless-steel spatula. Remove masking tape 30 minutes after application. Clean excess with alcohol.
- Curing: Allow 3–5 hours for handling. Full cure is reached in 24 hours. Avoid water contact during cure.
For Tilers: Bathroom Feature Wall Detailing
The Engineering Challenge: Clients often request coloured grout lines that match high-end tile choices while resisting mildew in humid conditions.
The System-Based Solution with X'traseal MC-228: The product’s vibrant colour finish and waterproof nanotech formulation solve this, delivering both beauty and protection.
Best Practice Note: Always use masking tape and tool immediately for crisp, clean edges with no halo effect.
Limitations & Safety
Product limitations and safety information
Limitations:
- Not suitable for high-movement expansion joints
- Do not apply on PE, PP, or PTFE surfaces
- Avoid contact with water or aggressive cleaners during cure
Safety & Handling:
- PPE: Gloves recommended for sensitive skin users
- Ventilation: Use in well-ventilated spaces
- Handling: Avoid skin contact and wash thoroughly with soap and water after use
- First Aid: In case of irritation, wash affected area with water. Seek medical help if symptoms persist
X'traseal MC-228 Adhesion & Preparation Guide
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Substrate preparation guidelines
- Ceramic Tiles: Clean thoroughly to remove dust and grout residue. Ensure dry surface. - Primer: No primer required.
- Marble & Granite: Wipe surface with alcohol and let dry. - Primer: No primer required.
- Porcelain: Degrease and dry surface well. - Primer: No primer required.
- Travertine: Pre-clean and ensure surface is not flaking. - Primer: No primer required.
- PE, PP, PTFE: Not suitable for this product. - Primer: Not applicable.
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