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Thermal primer

Thermal primer

We are currently out of stock on that item.

RRP: £41.99

Our Price: £16.99 inc VAT

Product Details

Product Details

Originally designed to combat the high temperatures that can be experienced during space travel, thermal primer is an acrylic primer that utilises unique energy-saving technologies to help homeowners make great cost savings.

The formulation that we stock here at Underfloor Heating Direct is made up of a distinctive insulating composition that contains NanoCNB structures. As such, it is durable and allows for heat to be retained where it is needed within your home.

When flooring has been coated with our thermal primer, it stops the surfaces from being able to absorb the heat from the room, meaning that it will require less energy to keep the space warm. The acrylic primer begins to work as it dries, creating an automatic thermal barrier that reflects heat back into the space. This way, less energy is used to heat the home, leading to great savings on energy bills.

As our thermal primer has been specifically designed for use alongside underfloor heating systems, this high-tech formulation has been shown to reduce heat loss by 20%. It is also the only advanced thermal coating primer for use with underfloor heating on the market.

Thermal primer is suitable for most surfaces and comes with a lifetime guarantee. As well as being proven to reduce energy loss within the home, it can also decrease running costs and the time it takes to warm up a room.

The thermal primer insulates and seals the surface all in one, although multiple coats can be administered for greater efficiency. As well as being easy to apply, thermal primer can also help to reduce a homeowner’s carbon footprint, so there really isn’t any need to delay.

Underfloor Heating Direct


Our thermal primer has been designed for use on almost any flooring type. This versatility means that the acrylic formulation is ideal to enhance the efficiency of underfloor heating systems, while it can also be used by homeowners and tradespeople as a standalone product. This is because it still provides a number of great energy benefits, such as lowering home energy loss, even when not being used in conjunction with an underfloor system.

After receiving the thermal primer, which comes in 1ltr containers, a roller or paintbrush can be used to apply thermal primer to flooring, so installation is quick and simple. Around 14sqm can be covered with the formulation from just one container, meaning that it is a highly affordable way to make great energy savings around the home.

As the solution is able to insulate and seal flooring as it goes, and starts to work as it dries, homeowners will soon be feeling the benefits of our thermal primer, both around the home and in their pockets.



Our thermal primer is an Acrylic Primer which is made up of a unique insulating composition containing NanoCNB structures. Our formulation utilises unique energy-saving technology originally developed to combat the high temperatures in space, together with the latest insulating technology.

When floors are coated with thermal primer, the surfaces lose the ability to absorb heat from the room. So the heat is reflected BACK up into your room as a result of the thermal barrier that has been formed.

Once thermal primer is applied to the floor and is dry, the thermally efficient barrier is automatically created.


Coronavirus Delivery Update

We are working closely with our delivery providers and can confirm all deliveries are unaffected by recent events. All orders you place on our website will continue to receive the same high standards of delivery you have come to expect from Underfloor Heating Direct.

Call us today on 0800 141 2643 to place your order.


Our delivery charges are calculated based on the weight of your entire order. Below is a table illustrating the cost for each weight bracket, please note we cap our delivery costs to a maximum of £50.

Weight From (kg) Weight To (kg) Cost
0 39.99 £10
40 59.99 £20
60 79.99 £30
80 99.99 £40
100+   £50

In addition to our standard delivery service, we can also arrange for delivery on a Saturday or before 10.30am on any working day. This level of carriage comes at an additional cost:

  • Next working day before 10.30am - Additional £5
  • Saturday - Additional £20

We can also arrange for pallet delivery on a three-day delivery, but costs vary depending on the size of the order, so please contact us for details.

Please Note: Wetroom Shower Trays will have 2 - 3 day delivery times and cannot be provisioned under our next day delivery policy.

When will I receive my order?

Orders placed before 3pm on any business day (Monday – Friday) excluding Bank Holidays should be delivered on the next business day (Excluding Saturday, unless the carriage is met) anytime up to 7.00pm.

Our standard next working day delivery does not guarantee next day delivery; however every effort is made by us and the courier to achieve this goal.

Orders taken on Friday after 3pm, Saturday or Sunday will be dispatched on Monday (excluding Bank Holidays) for delivery on Tuesday up to 7.00pm.

Orders placed on Friday before 3pm will be dispatched on Friday for delivery on Monday up to 7.00pm unless the Saturday delivery charge is met (This excludes Bank Holidays).

Please note: We rely upon the services of third party couriers and, whilst we endeavor to always deliver in a timely manner, there are unfortunately a few occasions when the couriers fail to deliver on the appointed day. This happens rarely, but because it does occur, albeit occasionally, we cannot be held responsible for the late delivery of an item, or any costs incurred by customers tradesman unable to work, please ensure you have your materials before booking in any trades.

Shipments sent outside the European Union may be subject to import duties and taxes, which may be levied once a shipment reaches your country. For details of Customs charges please consult your own Customs authorities for the latest rates.

Additional charges for customs clearance must be borne by you; unfortunately we have no control over these charges and cannot predict what they may be. We are unable to reimburse any costs incurred regardless of the circumstances.