UniBond Kitchen and Bathroom Anti-Mould Silicone Review: Best Sealant for Your Bathroom?
Maintaining a clean, mould-free environment in kitchens and bathrooms is crucial for both hygiene and aesthetics.
Unibond Kitchen and Bathroom Anti-Mould Silicone Sealant is a specialized product designed to address the common issue of mould in these moisture-prone areas.
This article will consider various aspects of Unibond Anti-Mould Silicone Sealant, including its features, benefits, application process and tips for effective use.
By the end of this article, you will have a thorough understanding of why this product is a top choice for preventing and managing mould in kitchens and bathrooms.
Table of Contents
Unibond Anti-Mould Silicone Sealant “At a Glance” Summary Table
| Category | Rating | Summary |
| Mould Resistance | ⭐⭐⭐⭐⭐ | Excellent fungicide protection. |
| Ease of Use | ⭐⭐⭐⭐ | Smooth flow, fits standard guns. |
| Drying Time | ⭐⭐⭐ | 24-hour full cure (Standard). |
| Value for Money | ⭐⭐⭐⭐⭐ | Very affordable (£7–£9 range). |
| Final Verdict | The Best Budget Sealant | Perfect for general DIY bathroom refreshes. |
What is Unibond Kitchen and Bathroom Anti-Mould Silicone Sealant?
Unibond Kitchen and Bathroom Anti-Mould Silicone Sealant is a high-quality silicone sealant designed specifically for areas exposed to high moisture levels, such as kitchens and bathrooms.
Its advanced formula contains fungicides that actively resist mould growth, ensuring long-lasting protection and a clean, hygienic appearance.


What is Silicone Sealant?
Silicone sealant is a flexible, waterproof substance used to seal joints, seams, and gaps in various surfaces.
Its properties make it ideal for use in areas exposed to water and humidity, such as around sinks, bathtubs, showers, and countertops.
The Problem of Mould in Kitchens and Bathrooms
Mould thrives in damp, humid environments, making kitchens and bathrooms particularly susceptible.
Mould not only looks unsightly but can also pose health risks, including respiratory issues and allergic reactions. Preventing mould growth is essential for maintaining a healthy living space.
You may be interested in this article that provides tips about how to tackle mould in your home : How to Tackle Mould in Your Home
Unibond Anti-Mould Silicone Sealant Review: Does it really stop mould?
Anti-Mould Formula
The standout feature of Unibond Anti-Mould Silicone Sealant is its advanced anti-mould formula.
This formula incorporates fungicides that actively inhibit mould growth, ensuring the sealed areas remain mould-free for an extended period.
Waterproof and Flexible
Unibond’s silicone sealant is waterproof, making it ideal for sealing joints and gaps exposed to water.
Its flexibility allows it to accommodate the natural expansion and contraction of surfaces, preventing cracks and gaps that could let water seep through.
Strong Adhesion
This sealant adheres strongly to a variety of surfaces, including ceramic, glass, metal, and plastic.
Its robust adhesion ensures a secure, long-lasting seal that won’t peel or crack over time.
Easy Application
Unibond Kitchen and Bathroom Anti-Mould Silicone Sealant is designed for easy application.
It typically comes in a tube that fits standard caulking guns, allowing for precise and controlled application. The smooth consistency of the sealant ensures a neat and professional finish.
Fast Curing Time
The sealant cures quickly, usually within 24 hours, forming a durable and flexible seal. This fast curing time minimizes downtime and allows you to use the sealed areas sooner.
Long-Lasting Protection
With its advanced formula and strong adhesion, Unibond Anti-Mould Silicone Sealant offers long-lasting protection against mould and water damage.
It is designed to maintain its effectiveness and appearance for years, but I typically find that replacing it every year is good practice.

What are the Benefits of Using Unibond Kitchen and Bathroom Anti-Mould Silicone Sealant?
Enhanced Hygiene
By preventing mould growth, this sealant helps maintain a clean and hygienic environment in kitchens and bathrooms. This is particularly important in areas where food is prepared and personal hygiene is maintained.
Aesthetic Appeal
Mould can be unsightly and difficult to remove once it takes hold. Using Unibond Anti-Mould Silicone Sealant ensures that sealed areas remain clean and visually appealing, enhancing the overall look of your kitchen and bathroom.
Health Protection
Mould can cause various health issues, including respiratory problems, allergies, and skin irritation.
By preventing mould growth, this sealant helps protect the health of your household.
Durability
The waterproof and flexible nature of Unibond Anti-Mould Silicone Sealant ensures a durable seal that can withstand the rigours of daily use in kitchens and bathrooms. This durability translates to fewer repairs and replacements over time.
Cost-Effectiveness
While there are many anti-mould products available, using a high-quality silicone sealant like Unibond provides long-lasting protection, reducing the need for frequent reapplication and saving money in the long run.
Unibond Anti-Mould Silicone Sealant is typically priced between £7 and £9. I recommend purchasing from Amazon as they often have discounts available.

Best Uses: Sinks, Showers, and Kitchen Worktops
| Use Case | Description | Key Benefit |
|---|---|---|
| Sealing Joints and Gaps | Used to seal joints, gaps, and edges where water ingress is likely, such as around sinks, countertops, shower enclosures, and plumbing fixtures. | Prevents water infiltration that can lead to structural damage and mould growth. |
| Preventing Mold and Mildew | Creates a moisture-resistant barrier in damp environments where mould and mildew commonly develop. | Inhibits mould spores, keeping surfaces cleaner and more hygienic for longer. |
| Waterproofing and Protection | Designed for wet areas including showers, baths, and kitchen sinks, with a durable formulation that resists constant water exposure. | Maintains long-lasting, leak-proof seals and protects against water damage. |
Step-by-Step: How to Get a Professional Finish with Unibond Anti-Mould Silicone Sealant
Proper application of Unibond Anti-Mould Silicone Sealant is crucial for achieving optimal results.
Follow these steps for a professional finish:
Tools and Materials Needed
- Unibond Kitchen and Bathroom Anti-Mould Silicone Sealant
- Caulking gun
- Utility knife or scraper
- Masking tape
- Rubbing alcohol or silicone remover
- Clean cloth or sponge
- Gloves
- Water and mild detergent
Step-by-Step Application Guide
1. Prepare the Surface
Before applying the sealant, ensure the surface is clean, dry, and free of any old sealant, dirt, or debris.
Use a utility knife or scraper to remove old sealant and clean the area with rubbing alcohol or silicone remover.
For stubborn mould, scrub the area with water and mild detergent, then rinse and dry thoroughly.


2. Apply Masking Tape
To achieve a neat and professional finish, apply masking tape along the edges of the joint or seam. This will help create clean lines and prevent excess sealant from spreading onto adjacent surfaces.
3. Cut the Sealant Tube Nozzle
Cut the nozzle of the sealant tube at a 45-degree angle to the desired width of the bead. This will allow for a controlled application of the sealant.

4. Attach the tube to the caulking gun.


5. Apply the Sealant
Holding the caulking gun at a consistent angle, apply a steady bead of sealant along the joint or seam. Use even pressure to ensure a smooth and continuous bead. Avoid applying too much sealant, as this can create a messy finish.

6. Smooth the Sealant
Using a wet finger, a caulking tool, or a damp cloth, smooth the bead of sealant for a clean and even finish. Remove the masking tape carefully before the sealant begins to cure.

7. Allow to Cure
Allow the sealant to cure for the recommended time, typically 24 hours, before exposing it to water or moisture. This will ensure a strong and durable seal.
Tips for Effective Application
- Work in a well-ventilated area to minimize exposure to fumes.
- Wear gloves to protect your hands from the sealant.
- If applying sealant in a vertical seam, start from the bottom and work your way up to prevent drips.
- For large or deep gaps, consider using a backing material like foam rods to fill the gap before applying the sealant.
Frequently Asked Questions About Unibond Kitchen and Bathroom Anti-Mould Silicone Sealant
1. How long does Unibond Anti-Mould Silicone Sealant last?
Unibond Anti-Mould Silicone Sealant is designed to provide long-lasting protection, typically lasting several years before needing reapplication, depending on the conditions and maintenance.
2. Can it be painted over?
No, silicone sealants generally cannot be painted over. If you need to paint the sealed area, consider using a paintable caulk instead.

3. Is it safe for use on natural stone surfaces?
Silicone sealants can stain or damage certain natural stone surfaces. It is best to test on a small, inconspicuous area first or use a sealant specifically formulated for natural stone.
4. How do I remove excess sealant?
Excess sealant can be removed with a utility knife or purpose made scraper tool. For fresh sealant, use a damp cloth or sponge before it cures. For cured sealant, a silicone remover or a knife may be necessary.

5. Can I use it outdoors?
While it is designed for indoor use, Unibond Anti-Mould Silicone Sealant can be used outdoors in areas not exposed to direct sunlight or extreme weather conditions.
6. Is it suitable for use in high-temperature areas?
Silicone sealants generally have good temperature resistance, but for areas exposed to high temperatures, such as around ovens, use a high-temperature silicone sealant.
7. Can it be used on plastic surfaces?
Yes, Unibond Anti-Mould Silicone Sealant adheres well to plastic surfaces.
8. What should I do if I accidentally get it on my skin?
Wash the affected area with soap and water immediately. If irritation persists, seek medical advice.
9. Does it have a strong smell?
Silicone sealants typically have a noticeable odour when first applied, which dissipates as the sealant cures. Ensure good ventilation during application.
10. Is it safe for use around children and pets?
While the sealant is curing, keep children and pets away from the treated area. Once cured, it is safe.
Top 5 Mistakes That Ruin Your Silicone Seal
Not Preparing the Surface Properly
Failing to clean and dry the surface thoroughly can lead to poor adhesion and mould growth under the sealant.
Applying Too Much Sealant
Excess sealant can create a messy finish and may not cure properly. Apply a consistent, thin bead for the best results.

Not Using Masking Tape
Skipping the use of masking tape can result in uneven edges and excess sealant spreading onto adjacent surfaces.
Not Allowing Enough Curing Time
Rushing the curing process can compromise the seal’s effectiveness. Always allow the recommended curing time before exposing the area to moisture.
Using the Wrong Type of Sealant
Ensure you are using a sealant specifically formulated for kitchens and bathrooms to provide the best protection against mould and moisture.
Maintenance Tips for Sealed Areas
| Maintenance Tip | Description | Key Benefit |
|---|---|---|
| Regular Cleaning | Wipe sealed areas regularly with mild detergent and water. Avoid harsh chemicals that could damage the sealant. | Keeps surfaces hygienic and prolongs the life of the sealant. |
| Check for Damage | Inspect sealed areas periodically for wear or damage. Repair or replace sealant as needed. | Maintains an effective moisture barrier and prevents leaks. |
| Control Humidity | Use exhaust fans or dehumidifiers in kitchens and bathrooms. | Reduces humidity levels, minimizing mould and mildew growth. |
| Address Leaks Promptly | Fix any leaks or plumbing issues immediately. | Prevents water damage and stops mould from forming around sealed areas. |
Conclusion
Unibond Kitchen and Bathroom Anti-Mould Silicone Sealant is a reliable and effective solution for preventing mould and maintaining a clean, hygienic environment in moisture-prone areas.
Its advanced anti-mould formula, strong adhesion, and ease of application make it an excellent choice for both DIY’ers and professionals.
By following the proper application process and maintenance tips outlined in this guide, you can ensure long-lasting protection and a beautiful finish in your kitchen and bathroom.
Investing in a high-quality sealant like Unibond is a smart choice for protecting your home and health from the damaging effects of mould and moisture.
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