Separating science from sales talk – does it really work?

Let’s be honest – the term “thermal paint” might sound like another trendy buzzword. A clever marketing phrase. A can of overpriced emulsion with empty promises.
So, let’s ask the question head-on:

Is thermal paint just marketing?

The short answer?
Not if it’s backed by real science.

What is “thermal paint”, anyway?

Thermal paint – also known as thermal insulation coating or warm coating – is a special type of wall coating designed to reduce heat transfer.
It’s often used on internal walls and ceilings to help:

  • Maintain warmth

  • Prevent condensation

  • Fight mould

But how does it actually work?

The secret lies in microsphere technology – tiny, vacuum-sealed ceramic balls mixed into the paint.
Once applied and dried, they form a reflective, insulating barrier on your walls.

The result?

  • Warmer surfaces

  • Less condensation

  • Improved comfort – especially in cold or damp-prone rooms

The science behind the claims

BlockTherm, for example, uses advanced microspheres originally developed for aerospace insulation.
This isn’t pseudo-science – it’s solid physics.

Once applied to interior walls:

✅ Reflects radiant heat back into the room – reducing heat loss
✅ Keeps wall surfaces warmer – reducing condensation
✅ Minimises mould growth – especially in humid spaces
✅ Enhances comfort – even at lower thermostat settings

So no, it’s not just a coat of paint.
It’s a functional layer of thermal protection.

Perfect for:

  • 🏠 Older homes where cavity wall insulation isn’t possible

  • 🚿 Bathrooms, kitchens, and other damp-prone spaces

  • 🏢 Flats where space is tight and thick insulation isn’t an option

  • 🔑 Landlords looking for fast, cost-effective thermal upgrades

So… marketing gimmick or real innovation?

Here’s the truth:
Some “thermal paints” on the market are just rebranded acrylics.
But when you choose a proven product like BlockTherm, developed with tested microsphere technology, you’re investing in real performance – not just marketing fluff.

Bottom line?

Don’t judge a paint by its label.
Judge it by what’s inside the tin – and how it performs on your walls.

Ready to try a smarter solution for heat retention and damp prevention?

👉 Discover the real power of BlockTherm.

continue reading

Related Posts