Geocel Sanitary Silicone 300ml Cartridge

Geocel Sanitary Silicone is a premium grade silicone sealant powered by Dow technology, ideal for sealing around baths, showers, sinks, basins, kitchen worktops, toilets and tiled areas. Offering excellent adhesion to non-porous surfaces, this professional grade silicone provides a 100% waterproof, highly flexible seal. Formulated with anti-mould protection and a powerful fungicide, it resists mould growth and is suitable for both interior and exterior use, with fast curing that makes it shower ready in just one hour.

• For sealing bathrooms and kitchens - Ideal for wet areas such as showers, sinks and worktops.
• Excellent adhesion to non-porous surfaces - Ensures strong bonding to tiles, glass and ceramics.
• Anti-mould - Helps prevent mould growth for a cleaner, more hygienic finish.
• Highly flexible - Maintains seal integrity despite joint movement.
• 100% waterproof - Provides complete water protection in wet environments.
• Shower ready in one hour - Minimises downtime and speeds up project completion.
• Highly durable - Long-lasting performance in demanding conditions.
• Suitable for interior and exterior use - Offers versatility across different applications.
• Contains fungicide - Provides added protection against bacteria and mould growth.
• Powered by Dow technology - Contains a premium grade silicone formulation you can trust.

Ensure all surfaces, gaps, cracks and bathroom tiles are clean, dry and completely free from mould, dust, dirt and grease.

• Remove the nozzle and cut off the end of the cartridge.
• Replace the nozzle and cut the tip to the required width.
• Place the cartridge into a sealant gun and apply the material into the gap, crack or joint to be filled.
• Ensure the sealant makes full contact with the sides and back of the joint.
• This product is not paintable, so apply neatly for a clean, finished result.
• Do not apply to building materials that bleed oils, plasticisers or solvents, and always check compatibility with the substrate before use.

• The sealant is tack free after one hour, at which point water contact can be made.
• Do not spray a water jet directly onto the sealant, and avoid cleaning or touching it until fully cured.
• Clean up excess, uncured material immediately using white spirit or Geocel Universal Wipes.
• Any cured material can be removed using Geocel Silicone Sealant Remover.

Storage

• Store in unopened original packaging at room temperature.
• Shelf life of 24 months from the date of manufacture when stored correctly.
• Keep away from direct sunlight and extreme temperatures prior to use.

Q. How soon can Geocel Sanitary Silicone get wet?

A. It's tack free after one hour, at which point water contact can be made, though a water jet should not be sprayed directly onto the sealant until it's fully cured.

Q. Does Geocel Sanitary Silicone protect against mould?

A. Yes, it contains a powerful fungicide and anti-mould protection, making it ideal for damp, humid areas like showers and bathrooms.

Delivery - All orders placed on a working day before 3pm will be dispatched on the same day for next working day delivery. Orders placed before 3pm on Friday will be delivered on Monday (excluding bank holidays). Orders placed after 3pm on Friday, weekends and Bank Holidays will be dispatched on the next working day. 

Delivery of Tinted Products - Tinted paints are dispatched in line with our express order process, shown below. However, due to their bespoke nature, please allow up to an additional 5 working days to accommodate any potential courier delays or delivery issues before receiving a refund or replacement.

We strongly suggest customers avoid booking tradespeople until they receive their order. Next Day Paint will not be held liable for any costs incurred due to order processing errors, delivery delays, or other issues that may result in financial loss.

Delivery Options

Express Shipping - £3.99

Order by: 3pm, Monday - Sunday

Expected delivery: Next working day, 8am - 9pm

AM Delivery - £12.99

Order by: 4pm, Monday - Sunday

Expected delivery: Next working day by 4pm

Late Cut-Off - £5.99

Order between: 3-4pm, Monday - Friday 

Expected delivery: Next working day, 8am - 9pm

Extended Late Cut-Off - £7.99

Order between: 4-5pm, Monday - Thursday

Expected delivery: Next working day, 8am - 9pm

Saturday Delivery - £9.95

Order by: 4pm, Friday 

Expected delivery: Saturday, 8am - 9pm

Standard Delivery (Out of Zone Postcodes Only) - £8.99

Order by: 3pm, Monday - Sunday 

Expected delivery:  3-5  working days, 8am - 9pm

Note: Orders placed on weekends or bank holidays will be dispatched on the next working day for delivery on the following day

We do not deliver to the Channel Islands or the Republic of Ireland

Certain postcodes delivery times and charges may vary please head to the cart to see your available delivery options.

Returns

We offer a 14 day money back guarantee for all goods shipped correctly that are not required. If the item is not required, please send the item back for a full refund in its original condition, unused with its original packaging. Please note return for unwanted item is at your own expense.

Contact us as soon as possible to inform us you will be returning the product either by a contact form or by calling our team on 0161 960 0217.

All tinted paint purchases are final and non-refundable. If you're unsure about your selection, please refer to the product listing or contact us for guidance before ordering. Once mixed, tinted paints cannot be returned or refunded, regardless of delivery delays or changes in circumstances.

While we aim to meet delivery timelines, we are not responsible for delays caused by couriers, weather, or other external factors.

We recommend ordering samples or colour charts before purchasing. While we strive to represent colours accurately, screen settings and surface types can affect appearance. Opened tins cannot be returned due to dissatisfaction with colour.

For non-tinted products, we offer a 14-day money-back guarantee. Items must be returned unused, in original condition and packaging, at your own expense.

Damaged Paint

Please visit our damages page, where we can help resolve the issue for you. 

Incorrect Item

If we have sent you a different item from what you ordered, we will be happy to organise an exchange for the correct goods at no extra charge to yourself, please get in touch to organise this.

Faulty Items

Faulty items can be refunded or exchanged within 30 days. All returns are tested, and if no fault is found, no refund will be issued you'll have the option to have the item returned. For faults discovered after 30 days, please contact the manufacturer for further support.