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Thermosphere Econofix Flexible Tile Adhesive - Grey

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RRP £44.17 save 16%


Estimated delivery 1-3 working days Help?

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Delivery from £14.99. Spend £500+ for free delivery*. Read full delivery info

What's great about it?

  • Flexible tile adhesive to cover your electric underfloor heating system and fix your tiles in place
  • Can also be used to lay your insulation boards prior to laying your underfloor heating
  • Eco friendly, rapid set and highly flexible
  • Coverage: 6.25 - 7.5m2
  • Water resistant so suitable for bathrooms, wetrooms, steam rooms and swimming pools

Read full product description


Thermosphere Econofix Flexible Tile Adhesive - Grey

Designed to use with electric underfloor heating, this flexible tile adhesive from Thermosphere will cover your cable or mat underfloor heating system and fix your tiles to the floor. Using an eco friendly formula, this adhesive is anti-stain and water mark proof making it perfect to use in bathrooms. You can also use it to fix your insulation boards to your substrate prior to laying your underfloor heating system.

It's super flexible, can be used to fix porcelain, ceramic and natural stone tiles, and will be ready to walk on and grout after only 3 hours. It has an improved slip resistance and can create a 3 - 12mm bed depth. You can also use it to fix an insulation board prior to laying your underfloor heating.

• Flexible tile adhesive to cover your electric underfloor heating system and fix your tiles in place
• Can also be used to lay your insulation boards prior to laying your underfloor heating
• Eco friendly
• Highly flexible - S1 flexible to EN 12004
• Rapid set properties - groutable and walkable within 3 hours
• Creates a bed of 1 - 20mm of adhesive
• Coverage: 6.25 - 7.5m2
• Water resistant so suitable for bathrooms, wetrooms, steam rooms and swimming pools
• Before tiling, your substrate must be clean, dry and free of dust, dirt, oil and grease - see recommended extras for a suitable primer

Additional information:
• Conforms to BS EN 12004 C2 FT S1
• Open/working time: approximately 30 minutes at 20C
• Before grouting time: approximately 3 hours depend on the room temperature and substrate. It will increase with lower temperatures and reduced at higher temperatures.
• Tiling onto an impervious substrate with a non porous tile will increase the set time
• Shelf life: 6 months if stored correctly
• Suitable for: ceramic, porcelain, marble, travertine, limestone, slate, quartz, granite, composite, terracotta, mosaic and quarry tiles
• Substrate suitability: sand/cement screed, concrete, plywood overlay (minimum 12mm), chipboard overlay (minimum 18mm), electric underfloor heating, wet underfloor heating, tile backer boards, econoboard coated and uncoated insulation boards, tile on tile, flooring grade asphalt and bitumen, andrydite screeds, plaster/plasterboard, fibre cement sheet, cement/sand render, concrete brick/block, existing vinyl tiles
• Not suitable for T & G floorboards, floating floors, steel/metal surfaces, fibreglass and green screed
Product Code FTA-20-01
Global Trade Item Number 5060291062403
Type Underfloor Heating Adhesives & Compounds
Brand Thermosphere
Brand Range Thermosphere Econofix

Delivery Costs

COVID-19 Update (December 2020)


  • Our website, warehouse and all courier partners are open and fully operational
  • Our customer service and sales teams are working safely from home and are available via email and live chat
  • Stock availability for some items displaying a lead time (e.g. 3-7 days) or backorder date (e.g. Delivery from [date]) is occasionally falling short, and we would like to sincerely apologise if you are affected. We advise ordering 'In Stock' lines if you are working to very tight deadlines. Please see our note below.

Read our full Covid-19 statement here.

FREE DELIVERY on orders over £500 to most of the UK.

- Orders over £500 receive FREE standard delivery to mainland UK

- Orders under £500:

For orders under £500, the charge* for a standard delivery is displayed on every product page just under the 'Add to Basket' button, and is dependent on the size of the item. We also offer premium options such as next day, AM and weekend deliveries for In Stock items at an additional cost. 

* Additional surcharges will usually apply to some areas of Northern Scotland and Scottish Isles, Channel Islands and Northern Ireland; and also to some areas of mainland UK for large, fragile items that are sent by specialist transport. Surcharges are displayed in the checkout, prior to confirmation, or you can enter your postcode under the delivery tab on any product page to see all available options and costs to your address for that particular item. You will only pay a single charge regardless of how many products you buy.

How Long Will It Take?

Items in stock and ready for immediate dispatch display ‘In Stock’ and ‘Next Day Delivery Available’. Other items show an estimated delivery time, such as 2-4 or 3-7 working days. This information is given to you on each product page throughout the website, as well as in the basket prior to checkout, and in the checkout process itself.

If desired, you will be able to split your order into multiple deliveries during the checkout if they have different lead times.

An important note on lead times and order delays:
We are currently seeing reduced accuracy with the stock information we get from our brand partners. Although we are still meeting the vast majority of these lead times, we advise ordering 'In Stock' items if you are working to tight deadlines.

Of the 5,000+ products we offer, around 2,000 lines are ready to send directly from our own distribution centre (and marked as 'In Stock' or 'Next Day Delivery'). Items displaying a lead time (e.g. 3-7 working days) are ordered on-demand from our brand partners. Items showing 'Delivery from [date]' are on back-order, and currently we are seeing more delays here than usual. We promise we are doing everything in our power to minimise and solve these issues, but we want to be up front about the impacts of Covid-19 and Brexit on our supply chain.

Our sales team are always happy to specifically check any products not displaying an 'In Stock' message - simply open a Live Chat with us or pop us an email.

How Will I Know When To Expect Delivery?

Small Item Orders (eg. taps, accessories, shower fittings, mirrors, mirror cabinets and radiators)

If your order is parcel-sized, we will ship it out when it is ready and send you a dispatch email. The majority of our small orders ship via DHL, and with this you will receive a 1-hour time-slot on the morning of your delivery for convenience, as well as the option to re-arrange or leave safe with a neighbour etc.

Large Item Orders (bath, basin, toilet, shower enclosure, furniture etc)

Large or bulky items are carefully inspected, and placed securely on a pallet or within a specialist fragile delivery vehicle (unless you're local - then we might use our own vehicles). We'll email you to let you know your goods have left us. Within this dispatch email you'll find everything you need to know about fragile deliveries.

Before delivery, the delivery provider will contact you to arrange a suitable delivery day. Please ensure you leave us the best contact number for yourself.

Please note, the driver will not be able to take the items in to your property, so we recommend that you have able-bodied people at your delivery address to help receive your goods if you have ordered large or heavy items. The driver will wait for 15 minutes for you to check for any signs of damage. Please notify us of any transit damage either on the delivery note, or if there isn't time to check the items thoroughly upon delivery then within 48 hours of receipt. This does not affect your statutory rights with regards to manufacturing defects and faults.

Please note: if you arrange a delivery time and you aren't there when the delivery team turn up, there will be a re-delivery charge of £30 payable.

Can I Collect My Order Instead?

Due to the current situation regarding Covid-19 we are unable to offer collections from our warehouse at this time.

International Delivery

We deliver small items (taps, shower fittings, accessories, small kitchen sinks, mirrors etc.) to most of Europe. You will be informed if any of the items in your basket are not able to be sent to your country during the checkout process.

If your country is not listed, or if you want to order a larger item, we may still be able to help. Please get in touch with us via email or live chat.

Returns & Exchanges

For unwanted items we offer 90 days for a credit note, and 30 days for a refund. Please note that there are a few items we are unable to take back, including some special finish taps and showers, toilet seats that have been opened, and bespoke orders. See our full returns policy.

We now offer a collection service for unwanted items. This is particularly useful for fragile, bulky items that are difficult to transport. Unwanted items can be collected at a convenient time and place via our own transport partners, typically within a 1 or 2 hour window. This is a chargeable service - for full details, please see our returns policy.


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Products with estimated delivery dates take a little longer to get to you safely and are not available for next day delivery.

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If you are in a hurry, view similar products available for next day delivery.