Do you need to fill the bath with water before applying?

As with any sealant, you should fill the bath. I didn’t but it was fine. You only have a minute or so to smooth it down as it goes off so fast. I use masking tape apply sealant, spray with soapy water and then remove masking tape and smooth with finger. Don’t lick your finger as this introduces mould !

How bad are the fumes from this, and how long do they take to go away?

Not one of the more potent sealants and the bathroom was clear of any sealant smell within 12 hours approx.. great product 👌🏾

How long should I wait inbetween reaplying

I'd leave it 24hr so to give 1st application time to set

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UniBond Speed Seal Sealant

Product ID: 56259870

Details

Brand
Unibond
Item dimensions L x W x H
50 x 50 x 230
Item weight
291 Grams
Material
Silicone
Style
White

🦠Mould-resistant formula for humid spaces

⏱️Dries to water contact in 1 hour

🛡️35-year durability guarantee

Description

🛁 Seal the deal with speed and strength—because your space deserves the best!

BUILT TO LAST DECADES - Backed by a 35-year guarantee when applied correctly, ensuring peace of mind and long-term protection.
VERSATILE APPLICATION - Perfect for power showers, sinks, baths, tiled areas, and more—your all-in-one sanitary sealant solution.
MOULD NOT ON YOUR WATCH - Specially formulated to resist mould growth in warm, humid environments like showers and kitchens.
FAST TRACK YOUR RENOVATIONS - Ready for indirect water exposure in just 1 hour—get your bathroom back in action faster.
HYGIENIC FLEXIBLE BARRIER - Creates a waterproof, flexible seal that keeps your spaces clean, dry, and protected from moisture damage.

UniBond 2078485 Speed Seal Sealant is a high-performance, white silicone sealant designed for humid environments such as bathrooms and kitchens. It offers rapid water resistance within 1 hour, long-lasting mould protection, and a 35-year durability guarantee when applied properly. Ideal for power showers, sinks, baths, and tiled surfaces, it creates a flexible, waterproof, and hygienic barrier to keep your spaces pristine.

Specifications

ASIN	B01G527XMY
Best Sellers Rank	7,695 in DIY & Tools ( See Top 100 in DIY & Tools ) 170 in Sealers
Brand	Unibond
Colour	White
Compatible Material	Ceramic
Country Of Origin	China
Customer Reviews	4.6 4.6 out of 5 stars (1,005)
EU Spare Part Availability Duration	1 Years
Global Trade Identification Number	04015000436601
Included Components	UNIBOND SPEED SEAL WHT CARTRIDGE
Item Dimensions	50 x 50 x 230 millimetres
Item Form	Paste
Item Type Name	UNIBOND SPEED SEAL WHT CARTRIDGE
Item Weight	291 Grams
Manufacturer	Henkel Ltd
Manufacturer Part Number	2078485
Material	Silicone
Model Number	2078485
Number of Items	1
Product Warranty	35-year guarantee.
Style Name	White
Surface Recommendation	Shower
Unit Count	291.0 gram
Water Resistance Level	Water Resistant

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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