Best SIKA Anti-Mould Sealants of 2025

Name: Sika Sanisil Silicone Sealant - Suitable
Brand: Sika

Corey Phillips

Last Updated: 9 Feb 2025

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SIKA Anti-Mould Sealants are a highly recommended solution for preventing and combating mould growth in various areas of your home. These sealants effectively create a waterproof barrier, preventing moisture from seeping into cracks and crevices where mould tends to thrive. With their long-lasting formula, SIKA Anti-Mould Sealants provide durable protection against mould, mildew, and fungal infestations. Whether you need to seal bathroom tiles, kitchen countertops, or any other areas prone to dampness, SIKA Anti-Mould Sealants are a reliable choice to keep your living spaces clean and mould-free.

At a Glance: Our Top Picks

#TOP 1

Sika Sanisil Silicone Sealant - Suitable

9.9

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Sika Sanisil Silicone Sealant - Suitable

#TOP1

9.9

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#TOP 2

Everbuild Everflex 195 Premium+ Siliconised Acrylic Sealant

9.8

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Everbuild Everflex 195 Premium+ Siliconised Acrylic Sealant

#TOP2

9.8

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#TOP 3

Everbuild Forever Clear Anti-Mould Silicone Sealant

9.6

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Everbuild Forever Clear Anti-Mould Silicone Sealant

#TOP3

9.6

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Top 10 SIKA Anti-Mould Sealants

#TOP 1

Sika Sanisil Silicone Sealant - Suitable

Sika

73988

Clear

300ml

Sika Sanisil Silicone Sealant – Suitable For Sanitary Applications – Anti Mould – Quick Curing – Solvent-Free – Clear – 300ml

9.9

FTB Score

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Features

INTERNAL AND EXTERNAL USE – Use It Inside And Outside In Areas Where Weatherproofing Is Paramount To Help Protect From Water Ingress.

IDEAL FOR SANITARY WARE – This Clear Silicone Sealant Contains Powerful Anti-Fungal Properties, Making It Perfect For Application Around Baths, Showers, Sinks, Kitchen Units, And Other Humid Areas.

TWO COLOURS – Available In Both Clear And White.

RESISTANT – This Solvent-Free Silicone Sealant Is Weather And UV-Resistant. Contains A Powerful Anti-Fungal Compound For Long-Term Protection Against Fungus And Mildew.

MULTI-PURPOSE – Bonds Well To Materials Including Ceramic, Acrylic, Laminate, Metal, Worktops, Timber, PVCu Window Frames And Glass. Delivers A Highly Elastic And Flexible Seal.

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#TOP 2

Everbuild Everflex 195 Premium+ Siliconised Acrylic Sealant

Everbuild

EVB195WE

White

300ml

Everbuild Everflex 195 Premium+ Siliconised Acrylic Sealant – Mould Resistant – Permanently Flexible – Overpaintable – White – 300ml

9.8

FTB Score

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Features

PERMANENTLY FLEXIBLE – Tack-Free In Under An Hour And Fully Cured In Less Than Five Days To Give A Long-Lasting Seal, Depending On Thickness, Temperature And Humidity.

SUITABLE FOR INTERNAL AND EXTERNAL APPLICATIONS – Ideally Suited For Sealing Around Door And Window Frames, Repairing Cracks In Brickwork, Stone, Plaster And Concrete, And Filling Gaps Before Decorating.

VERSATILE FORMULA – Use It To Adhere Virtually All Substrates Including Timber, Metal, Brickwork, Stone, Concrete, Plaster And PVCu.

Size: 310ml

SUPERIOR ADHESIVE PROPERTIES – Suitable As An Adhesive On Lightweight Materials Such As Polystyrene Or Cork Coving And Tiles.

EASY TO APPLY – Use A Standard Cartridge Applicator Gun For Smooth And Even Application. Mistakes Are Easily Removed Before Drying With A Sponge And Warm Water.

Brand: Everbuild

195 Siliconized Acrylic White

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#TOP 3

Everbuild Forever Clear Anti-Mould Silicone Sealant

Everbuild

FOREVERCLEAR-EBD

Clear

295ml

Everbuild Forever Clear Anti-Mould Silicone Sealant – Permanently Waterproof – Suitable for Internal And External Use – Clear – 295ml

9.6

FTB Score

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Features

IDEAL FOR AREAS OF HIGH HUMIDITY – From Shower Bases And Cubicles To Wet Rooms; Around Baths, Sinks, Basins, And More – The Waterproof Cured Product Works Perfectly In Frequently Damp Areas.

LONG-LASTING – With A 25% Flexibility Factor And A Waterproof Finish, Forever Clear Is A Superior Hygienic Silicone Sealant For Areas Of High Humidity.

VERSATILE – You Can Also Use It In Utility Rooms, Kitchens And All Applications Where The Air Is Moist And Maximum Hygiene Protection Is Required.

MULTIPLE COLOURS – Available In White, Ivory, Clear And Grey To Best Suit Your Kitchen, Bathroom Or Humid Area Decor.

CONTAINS MOULD SHEILD – An Independently Tested Ingredient That Prevents Mould Growth For Up To 10 Years, Tested Under Simulated Ageing Conditions.

ANTI-BACTERIAL PROPERTIES – Actively Protects Against The Growth Of Bacteria, Mildew And Black Mould That Can Commonly Occur In High-Humidity Environments.

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#TOP 4

Everbuild Acrylic Sealant for Kitchens and Baths

Everbuild

BATHWH

White

290ml

Everbuild Acrylic Sealant for Kitchens and Baths Cover

Everbuild Bath and Kitchen Acrylic Sealant – Anti Mould Formulation – White – 290ml cartridge

9.4

FTB Score

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The Everbuild Acrylic Sealant is a flexible and versatile solution for your sealing needs. It adheres to a variety of surfaces, making it suitable for kitchen worktops, baths, and door frames. With its mould-resistant properties, this sealant contains a powerful fungicide, ensuring that areas exposed to humidity remain free from mould growth. Additionally, it can be overpainted once a surface skin has formed, allowing you to achieve a seamless finish that matches your décor.

What We Like

Flexible and high-quality

Mould resistant for humid areas

Can be overpainted

Easy to clean up

Fits standard sealant guns

#TOP 5

Everbuild Everflex 335 Premium Construction Silicone Sealant

Everbuild

335WE-EBD

White

Everbuild Everflex 335 Premium Construction Silicone Sealant Cover

Everbuild Everflex 335 Premium Construction Silicone Sealant – Low Modulus Sealant – Quick Curing – Anti-Mould – White – 295ml

9.4

FTB Score

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Features

QUICK CURING – This Fast-Acting Sealant Boasts Extremely Low Dirt Pick-Up. It Seals To A Variety Of Surfaces Including Pre-Formed Panels, Formwork, Glass-To-Glass, And Glass-To-Aluminium.

HIGH ELASTICITY – This Low Modulus Acetoxy Sealant Ensures A Permanent Seal Around PVCu Profile, Trim, Cladding And Perimeter Pointing Around PVCu, Timber, And Metal Frames.

WATERPROOF – Forms A Weather-Tight Rubber-Like Seal. Excellent For Cap Glazing, Remedial Single Glazing Sealing, And General Draughtproofing.

MULTIPLE COLOURS – Also Available In Brown, Translucent, Bronze, Black, Grey And Toffee.

FLEXIBLE – Pliable Sealant With +/- 20% Flexibility Factor Making It Ideal For Changes In Temperature Causing Shrinking And Expansion Of The Joint Beneath The Seal.

ANTI-FUNGAL FORMULATION – Contains A Powerful Anti-Fungal Formulation To Prevent Mould Growth, Certified For Sanitary Applications.

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#TOP 6

Everbuild Bath and Kitchen Acrylic Sealant

Everbuild

EVBEASIBATHW

White

200ml

Everbuild Bath and Kitchen Acrylic Sealant Cover

Everbuild Bath and Kitchen Acrylic Sealant – Anti Mould Formulation – White – 200ml

9.4

FTB Score

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Features

VERSATILE – Can Be Used Around Kitchen Worktops, Baths, Sanitary Ware, Basins, Ceramics And Door/window Frames Made From Timber, Metal Or PVCu.

FLEXIBLE– This Permanently Flexible, High-Quality Acrylic-Based Sealant Adheres To Most Surfaces, Including Wood, Tile, Plastics, Metals And Ceramics.

SIMPLE CLEAN-UP – Easy To Smooth Down Using A Wetted Spatula Or Gloved Wetted Finger. Any Excess Can Be Easily Removed Using A Sponge And Warm Water.

MULTIPLE SIZES – Available In A 290ml Cartridge That Requires The Use Of An Application Gun To Apply And A Ready-To-Use 200ml Squeeze Tube.

MOULD RESISTANT – Contains A Powerful Fungicide To Prevent Mould Growth, Making It Ideal For Areas With High Humidity, Like Bathrooms And Kitchens.

CAN BE OVERPAINTED – The White Sealant Can Be Overpainted If Required When A Surface Skin Has Formed.

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#TOP 7

Everbuild External Frame Sealant - Interior And Exterior Use

Everbuild

EXTGY-EBD

Grey

290ml

Everbuild External Frame Sealant - Interior And Exterior Use Cover

Everbuild External Frame Sealant – Interior And Exterior Use – Permanently Flexible – Mould-Resistant – Grey – 290ml

9.4

FTB Score

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Features

LONG-LASTING – A No-Slump Formula That Remains Permanently Flexible And Has Mould-Resistant Components For A Long-Lasting Seal.

DESIGNED FOR INTERIOR AND EXTERIOR USE – Use To Complete Internal And External Sealing Around Timber And Metal Window And Door Frames, Plus The Internal Sealing Of PVCu Windows And Doors.

OVERPAINTABLE – Apply This Ready-To-Use Thixotropic Paste To Most Surfaces And Paint Over It For A Seamless Finish, Overpainting Is Recommended Externally To Prolong The Working Life Of The Product.

MULTIPLE COLOURS – Available In Grey, White, Brown And Stone To Enable The Best Colour Match For The Area Of Application.

EASY TO APPLY – Simply Insert The Cartridge Into A Sealant Application Gun, Such As The Everbuild Power Pro Heavy Duty Sealant Gun, Snip The Tip And Go.

ALSO SUITABLE FOR SEALING CRACKS AND GAPS – An Acrylic-Based Sealant That You Can Use For Sealing Cracks And Gaps In Brickwork, Stone And Concrete.

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#TOP 8

Everbuild Everflex 335 Premium Construction Silicone Sealant

Everbuild

EVB335TR

Translucent

Everbuild Everflex 335 Premium Construction Silicone Sealant – Low modulus Sealant – Quick Curing – Anti-Mould – Translucent – 295ml

9.4

FTB Score

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Features

QUICK CURING – This Fast-Acting Sealant Boasts Extremely Low Dirt Pick-Up. It Seals To A Variety Of Surfaces Including Pre-Formed Panels, Formwork, Glass-To-Glass, And Glass-To-Aluminium.

HIGH ELASTICITY – This Low Modulus Acetoxy Sealant Ensures A Permanent Seal Around PVCu Profile, Trim, Cladding And Perimeter Pointing Around PVCu, Timber, And Metal Frames.

WATERPROOF – Forms A Weather-Tight Rubber-Like Seal. Excellent For Cap Glazing, Remedial Single Glazing Sealing, And General Draughtproofing.

MULTIPLE COLOURS – Also Available In White, Brown, Bronze, Black, Grey And Toffee.

FLEXIBLE – Pliable Sealant With +/- 20% Flexibility Factor Making It Ideal For Changes In Temperature Causing Shrinking And Expansion Of The Joint Beneath The Seal.

ANTI-FUNGAL FORMULATION – Contains A Powerful Anti-Fungal Formulation To Prevent Mould Growth, Certified For Sanitary Applications.

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#TOP 9

Everbuild Everflex 565 Premium+ Clean Room Silicone Sealant

Everbuild

565WE

White

295ml

Everbuild Everflex 565 Premium+ Clean Room Silicone Sealant Cover

Everbuild Everflex 565 Premium+ Clean Room Silicone Sealant – Mould And Bacteria Resistant – White – 295ml

9.2

FTB Score

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Features

EXCELLENT ADHESION – A Low-Modulus Silicone Sealant That Adheres Incredibly Well To Most Materials, Including Glass, Metal, Plastic, Wood, uPVC And More.

DESIGNED FOR HIGH-HYGIENE AREAS – Everbuild Everflex White Sealant Has Superior Mould And Bacteria Resistance, Making It Ideal For Areas Of High Hygiene, Like Kitchens, Bathrooms Or Food Prep Areas.

MOULD RESISTANT FORMULA – Contains Mould Shield, Which Can Be Resistant To Bacteria And Mould For Up To 10 Years.

EASY TO APPLY – Insert The Cartridge Into A Standard Sealant Gun, Such As The Everbuild Power Pro Heavy Duty Sealant Cartridge Applicator Gun, And Apply.

CAN BE USED OUTDOORS – Has A Non-Slump Formula That Is Weather, Mould And Bacteria Resistant, So You Can Use It Outdoors If Needed.

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#TOP 10

Everbuild Everflex 335 Premium Construction Silicone Sealant

Everbuild

335GY-EBD

Grey

295 ml

Everbuild Everflex 335 Premium Construction Silicone Sealant – Low modulus Sealant – Quick Curing – Anti-Mould – Grey – 295ml

9.0

FTB Score

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Features

QUICK CURING – This Fast-Acting Sealant Boasts Extremely Low Dirt Pick-Up. It Seals To A Variety Of Surfaces Including Pre-Formed Panels, Formwork, Glass-To-Glass, And Glass-To-Aluminium.

HIGH ELASTICITY – This Low Modulus Acetoxy Sealant Ensures A Permanent Seal Around PVCu Profile, Trim, Cladding And Perimeter Pointing Around PVCu, Timber, And Metal Frames.

WATERPROOF – Forms A Weather-Tight Rubber-Like Seal. Excellent For Cap Glazing, Remedial Single Glazing Sealing, And General Draughtproofing.

MULTIPLE COLOURS – Also Available In White, Clear, Bronze, Black, Brown And Toffee.

FLEXIBLE – Pliable Sealant With +/- 20% Flexibility Factor Making It Ideal For Changes In Temperature Causing Shrinking And Expansion Of The Joint Beneath The Seal.

ANTI-FUNGAL FORMULATION – Contains A Powerful Anti-Fungal Formulation To Prevent Mould Growth, Certified For Sanitary Applications.

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Editor's Notes

During our SIKA anti-mould sealant research, we found 16 SIKA anti-mould sealant products and shortlisted 10 quality products. We collected and analyzed 48,505 customer reviews through our big data system to write the SIKA anti-mould sealants list. We found that most customers choose SIKA anti-mould sealants with an average price of £5.17.

The SIKA anti-mould sealants are available for purchase. The top 10 picks range in price from a low of £1.00 to a high of £11.00, find the one that fits your budget.

Written by

Corey Phillips

Corey Philips is an electrician and lighting expert. He graduated from the University of Birmingham in 2012 with a Bachelor's degree in electrical and electronics engineering. Corey is a specialist contractor in lights. He sells and installs and recommends lights and lamp sheds, and other lights accessories. Aside from that, Corey is vast in installing and maintaining electrical appliances like air conditioners, water heaters, and the likes.