How to heatproof your mugs

Tea and coffee. They make the world go round! But if there's no coaster to hand, our love of hot drinks can leave unwanted marks on our favourite furniture. However, if you use Sugru Mouldable Glue to add a little stylish heatproofing to the bottom of your mugs, you'll never give it a second thought.

Sugru is great for this application because it is temperature-resistant up to 180°C (356°F), and you can also customise your mug just how you like it. We used a strip of orange here, but all kinds of different effects are possible.


  • 1 single-use pack of Sugru
  • Masking tape
  • Soapy water

Step 1

Upside down mug with masking tape

Put masking tape just above the bottom of the mug so that there is roughly a 1cm ring all around.

Step 2

Sugru added to rim of upside down mug

Work with small sausages of Sugru at a time. Press it into the rim at the base of the mug.

We've done a bit of colour mixing here to get this shade of orange. If you want to try it yourself then be sure to check out the page: How to mix Sugru to make custom colours.

Step 3

Sugru added to rim of upside down mug

Rub the Sugru into the mug. Keep it thicker on the bottom and thinner on the sides as the bottom is for heatproofing, and the sides are just for aesthetics. Rub the Sugru just over the masking tape.

Step 4

Bottom rim of mug is fully covered in Sugru

Cover all around the mug.

Step 5

Masking tape is peeled off mug to show reveal precise Sugru edge

Peel away the masking tape.

Step 6

Sugru edges smoothed on upside down mug

Smooth the edges down with your finger.

Step 7

Soapy water applied to Sugru on mug to give smooth finish

Rub gently with soapy water to get a super smooth finish.

Step 8

Mug slid around in soapy water to give level surface to the Sugru

To get a level base put some soapy water on a smooth surface, flip the base over and lightly slide around in the water.

Step 9

Mug left upside down for Sugru to set

Flip the mug back over and leave to set for 12-24 hours.

Next, simply make your morning cuppa and enjoy your newly perfected mug!