How to Apply Silicone Sealant (2026): Bathrooms, Sinks and Windows, Plus Prices in Kenya

Oct 18, 2026

Buy More Mall Kenya

A good silicone joint keeps water out of walls and cabinets and makes a bathroom look finished. A messy one traps dirt and turns black. The difference is preparation and technique, not expensive tools.

Quick answer: Remove old silicone, clean the joint with spirit and let it dry completely. Put masking tape on both sides of the joint, cut the nozzle at 45° to the bead width, and run a steady bead with a caulking gun. Smooth it with a wet finger or tool dipped in soapy water, pull the tape off straight away, and leave it 24 hours before using the shower or sink. Silicone costs from KSh 100 for a small tube to KSh 500 on Buy More Mall.

Silicone Sealants on Buy More Mall

Silicone Gp 2.0 (White) – price in Kenya — Silicone Gp 2.0 (White)
**KSh 350**

Silicone Gp 2.0 (Clear) – price in Kenya — Silicone Gp 2.0 (Clear)
**KSh 350**

Silicone Gp 2.0 (Black) – price in Kenya — Silicone Gp 2.0 (Black)
**KSh 350**

Silicone Sparko White – price in Kenya — Silicone Sparko White
**KSh 500**

Silicone Sparko Clear – price in Kenya — Silicone Sparko Clear
**KSh 500**

Silicone Hightech Clear – price in Kenya — Silicone Hightech Clear
**KSh 350**

Silicone Abc White – price in Kenya — Silicone Abc White
**KSh 400**

Ptg Silicone Black – price in Kenya — Ptg Silicone Black
**KSh 300**

Silicone-Small – price in Kenya — Silicone-Small
**KSh 100**

Some photos are reference images of the product type, used under open licences. Image credits are on each product page.

Silicone	Colour	Price
Silicone Gp 2.0 (White)	White	KSh 350
Silicone Gp 2.0 (Clear)	Clear	KSh 350
Silicone Gp 2.0 (Black)	Black	KSh 350
Silicone Sparko White	White	KSh 500
Silicone Sparko Clear	Clear	KSh 500
Silicone Hightech Clear	Clear	KSh 350
Silicone Abc White	White	KSh 400
Ptg Silicone White	White	KSh 300
Silicone-Small	Small tube	KSh 100

Which Silicone Should I Use?

Job	Choose	Why
Shower, bath, basin, sink	Sanitary (anti-fungal) silicone, white or clear	Resists mould in wet areas
Windows and glass	Clear silicone	Invisible joint
Metal, stone or mirrors	Neutral-cure silicone	Vinegar-smelling (acetic) silicone can corrode metal and stain stone
Gaps that will be painted	Acrylic sealant instead	Paint does not stick to silicone

Step by Step: How to Apply Silicone

Remove old silicone with a blade; clean off the residue.
Clean and dry: wipe with methylated spirit; let the joint dry fully (wet joints do not bond).
Tape the edges: masking tape on both sides, leaving the joint width (usually 4–8 mm).
Cut the nozzle at 45°, slightly smaller than the gap.
Run the bead in one steady pass, pushing silicone into the joint.
Smooth it with a wet finger or tool dipped in soapy water.
Remove the tape immediately, pulling away from the joint.
Cure: keep water away for 24 hours (thick beads take longer).

Masking tape costs from KSh 70.

Bath or shower tray? fill the bath with water (or stand in the shower tray) before sealing. The joint is then sealed at its widest gap and does not tear when loaded.

Can Silicone Be Painted or Used Outdoors?

Most silicone cannot be painted, as paint peels off. Silicone is fine outdoors and in sun for windows and gutters, but for roof leaks use a proper roof sealant; see how to fix a leaking roof. Silicone is not an adhesive for heavy items and not a substitute for tile grout between tiles.

Worked Example: Resealing a Mouldy Shower Tray

A tenant scrapes out black, mouldy silicone around a shower tray, cleans the joint with spirit, lets it dry overnight, tapes both sides, applies white sanitary silicone, smooths it and leaves the shower unused until the next evening. Total cost: one tube and a roll of masking tape.

Common Mistakes to Avoid

Applying silicone over old silicone.
Sealing a wet or dusty joint.
Using acetic silicone on mirrors or natural stone.
Leaving the tape on until the silicone skins.

Not sure which one fits? Send us your details on WhatsApp or through the product page and we will help you choose.

Frequently Asked Questions

How much is silicone sealant in Kenya?

From KSh 100 for a small tube; full tubes from about KSh 350 on Buy More Mall.

How long does silicone take to dry?

It skins in minutes but needs about 24 hours before contact with water.

Can silicone sealant be painted?

Generally no; use acrylic sealant where you need to paint.

What is the best silicone for bathrooms?

An anti-fungal sanitary silicone in white or clear.

Can I apply silicone over grout?

Yes at corners and changes of plane, where movement cracks grout; not across flat tile joints.

Prices shown are regular prices on Buy More Mall. Many products are currently on offer, so open the product page to see today's price.

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