UniBond Multi-Purpose Silicone Sealant - Black - 280ml

UNIBOND Indoor Multi-Purpose Black Silicone Sealant is a premium one-component, acetoxy-curing sea...

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B&QB&Q - Multi Purpose Silicone Sealant Silicone-Based Black BrickConcreteStone & Wood Multi-Purpose Sealant280Ml
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Product Information

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The UniBond Multi-Purpose Black Silicone Sealant is an essential solution for homeowners and DIY enthusiasts looking to create professional-grade, watertight seals in high-moisture environments like kitchens and bathrooms. This premium, acetoxy-curing sealant offers a durable, flexible finish that resists mould growth for up to 15 years, providing a sleek, modern black aesthetic to your fixtures. While it provides excellent adhesion to glass, ceramics, and aluminium, users should note that its specialized composition is intended strictly for indoor applications and may not be suitable for all outdoor or structural environments.

All features

ColourBlack
BrandUniBond

Extended Product Information

FAQs

Can I use this sealant on natural stone or marble?

No, this is an acetoxy-curing sealant, which can stain or etch natural stone and marble surfaces.

How long does it take for the sealant to fully cure?

While it skins over within minutes, it typically takes 24 to 48 hours to achieve a full cure depending on the temperature and humidity.

Is this product safe for drinking water contact?

This sealant is designed for general household sealing and is not certified for food contact or drinking water applications.

Can I paint over the black sealant?

Silicone sealants generally do not accept paint well. Since this is a decorative black finish, it is intended to be the final surface.

What is the best way to remove old silicone?

Use a sharp utility knife to cut away the bulk of the old sealant, then use a specialized silicone remover solvent to clean up any remaining residue.

Can I use this for outdoor window frames?

No, this product is specifically formulated for indoor use and may not withstand extreme weather conditions.

Troubleshooting

The sealant is not adhering to the surface

Ensure the surface is completely dry and free from soap scum, oil, or existing silicone residue before re-applying.

The sealant appears to be bubbling after application

This is often caused by moisture trapped behind the bead. Ensure the joint is thoroughly dried and cleaned before sealing.

Strong smell during application

This is normal for acetoxy-curing sealants. Ensure the room is well-ventilated by opening windows or using an exhaust fan until the product cures.

Pros and Cons

Pros

  • Resists mould and mildew growth for up to 15 years
  • Provides a strong, flexible, and waterproof seal
  • Easy to use with the no-cut cartridge design
  • Excellent adhesion on glass, ceramics, and metal surfaces
  • Stylish black finish for a modern look

Cons

  • Not intended for structural or outdoor use
  • Acetoxy-curing process releases a distinct acetic acid odour during application
  • Limited to indoor applications only

Setup, Compatibility & Care

Before application, ensure the target surfaces are clean, dry, and free of dust, grease, or old sealant residue to maximize adhesion. Using a caulking gun, load the no-cut cartridge and apply an even bead along the joint. Once applied, use a sealant smoothing tool or a finger dipped in a mild soapy water solution to press the product into the gap.

Compatibility: This product works best on non-porous surfaces like glass, glazed ceramics, and anodized aluminium. It is not recommended for use on natural stone, marble, or certain plastics that may react with the acetic acid.

Care: Once cured, the sealant requires minimal maintenance. Simply wipe it clean with a damp cloth during routine household cleaning. Avoid using harsh abrasive chemicals or scouring pads directly on the sealant to preserve the integrity of the mould-resistant coating.

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