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BritFlex S1 Rapidset - 20kg - Pallet Deals and Bulk Buy
BritFlex S1 Rapidset - 20kg - Pallet Deals and Bulk Buy

BritFlex S1 Rapidset - 20kg - Pallet Deals and Bulk Buy

The Daily Driver: Rapid Setting Speed with S1 Flexibility

⭐⭐⭐⭐⭐ (2,104) | Rated 4.9/5 and 2,000+ customers satisfied

£324.00

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Our goal is for every customer to be totally satisfied with their purchase. If this isn't the case, let us know and we'll do our best to work with you to make it right.

Specifications

  • Polymer Modified
  • High Strength
  • Rapid Setting
  • Non-Slip
  • Interior and Exterior Use
  • Wall and Floor Tiles
  • Bed Thickness 3-12mm
  • Underfloor Heating Compatible
  • Suitable for Pre-Strengthened Wooden Floors
Maximum Movement. Extreme Grip. Problem Solved.
Choose ColorGrey
Choose Pallet Carefully

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Description

BritFlex S1 Rapidset is suitable for fixing different tiles including ceramics, slate, limestone, marble, porcelain, terrazzo and mosaics to a variety of surfaces. If used externally then a solid bed method of fixing is recommended. BritFlex S1 Rapidset is suitable for both matted and piped underfloor heating.

 


40mins

2 hours

20kg will cover 5sq.m at 3mm bed depth

Built for Speed & Versatility

This is the "workhorse" adhesive for professional tilers. We have engineered BritFlex S1 Rapidset to offer the perfect balance of speed and flexibility. With a 2-hour set time, it allows for same-day grouting, while the polymer-modified formula ensures a secure bond on timber and heated floors.

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Features BritFlex S1 Rapidset
S1 Deformable Class ✓
Polymer Modified ✓
Pot Life 40 Mins ✓
Bed Thickness 3-12mm ✓
Non-Slip Formula ✓
Interior & Exterior Use ✓
Underfloor Heating Ready ✓

Words From Our Valued Clients

4.8/5

Perfect pot life for professional work

I use this on 90% of my jobs. The 40-minute pot life is just right—fast enough to get the job done, but slow enough to mix a full bag without it going off.

Jack S. (Pro Tiler)

Walkable by tea time

Needed to tile a hallway and have it walkable by the evening. Put this down at 9 am, grouted by 1 pm, walked on by tea time. Perfect.

Red Rose Tiling

Instant grab on heavy tiles

Used the white version for some heavy 30x60 ceramic tiles. The grab is instant. Didn't need to prop the tiles up, they just stayed put.

Pauline G.

Unbeatable value for money

Buying the pallet deal brings the price per bag down massively. For the quality of the gear, you can't beat it. Better than the stuff at the big sheds.

Unit 4 Renovations

Flex prevents cracking over plywood

Tiled over 18mm ply in a kitchen. The S1 flex really works; there's been no cracking even with the washing machine vibrating nearby.

T. O'Malley

Creamy mix, beautiful comb-out

Some rapid sets can be gritty. This mixes up really creamy and combs out beautifully. Makes getting a flat bed easy.

Sophie K.

Superior grip on porcelain

Porcelain tiles are heavy and non-porous, so they need a good polymer grab. BritFlex S1 sticks to them like anything.

Mick "The Tiler"

Perfect for rapid wetroom installations

We use this for all our wetroom formers. It sets quickly so we can get the waterproofing tape on without waiting around all day.

Bathrooms by Design

Reliable British quality

Interior, exterior, wet, dry... I've used it everywhere. Never had a failure. Reliable British quality.

D. Carter

Proper bright white for glass mosaics

I've bought 'white' adhesives before that were more cream/grey. This is a proper bright white, which is essential for glass mosaics.

Lisa Marie

Thermal flexibility on heated screeds

Laid 60m2 over a heated screed. The thermal flexibility is spot on. System has been running for a winter now with no issues.

ProFinish Construction

Easy to work with for DIYers

I'm not a pro, but I found this easy to work with. Just mix small batches if you are slow like me, because it does set rapid!

Alan W.

Your Questions, Answered

Absolutely. It is fully compatible with matted and piped underfloor heating. The polymer modification allows the adhesive to expand and contract with the heat without losing its bond.

You have a pot life of 40 minutes. This is a "Rapid Set" product, so we recommend mixing only what you can use within that window. For a longer working time, choose our "Semi-Rapid" or "Slowset" versions.

Yes, it is suitable for Pre-Strengthened Wooden Floors. The S1 rating indicates it is deformable, allowing it to handle the slight movement found in timber substrates.

Yes, BritFlex S1 Rapidset is suitable for both Interior and Exterior Use. When using it outside (e.g., for porcelain patios), ensure you use a solid bed method to prevent frost damage.

A 20kg bag will cover approximately 5 sq.m at a 3mm bed depth. If you are using a notched trowel for large format tiles (which often creates a 6mm+ bed), expect the coverage to be closer to 3-4 sq.m.

You can grout after just 2 hours. This rapid turnaround makes it ideal for jobs that need to be completed in a single day, such as kitchen splashbacks or hallway repairs.

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