The Fibreglass Rope Seal gasket on wood fire stoves and heaters will need to be replaced over time. When the door is closed, it creates a seal to ensure efficient burning of the wood. It will need to be replaced when there is no longer an airtight seal between the door and the stove (heater) body.

Our Fibreglass Braided Rope Seal is manufactured from braided fibreglass yarns, and has a maximum operating temperature of 583°C.  It is non-flammable and has excellent chemical resistance. Though it is a high-density grade, it still offers good flexibility which makes it easy to install around curves and bends. This rope also has excellent dimensional stability. It won’t stretch or shrink and retains this stability even at high temperatures.

To determine the diameter size you need, you can contact the manufacturer, check your instruction manual or measure the channel of the wood fire heater door seal.  

Our Fibreglass Braided Rope Seal is measured in millimetres. It comes in 6.4mm, 9.5mm, 12.7mm, 16mm, 19mm and 25.4mm diameter.

You always go up a size so that the fibreglass rope gasket is firm and creates the airtight seal you need on your wood fire stove or heater. You are also better off ordering a slightly longer length rope so you have enough to fill the channel and you can easily cut it down to the correct length.

You will require the correct adhesive for the rope seal gasket. Our Red HT 300 High Temperature RTV Silicone Adhesive is a one-part, acetic cure silicone designed for sealing and bonding in high temperatures. This high-quality silicone is red in colour, free of solvents and creates very strong bonds and seals. It can be used to bond a variety of materials to each other and also for making formed in place silicone gaskets. These bonds and seals are resistant to ageing, exhibit good chemical resistance and are extremely elastic with a maximum elongation of 500%. Weicon HT 300 High Temperature Silicone withstands short periods (up to about 2 hours) of exposure to 300°C and can handle 280°C on a continuous basis.


What you will need to replace your rope gasket:

  • Replacement rope 
  • An adhesive to be able to stick the new rope gasket (Our HT 300 High Temperature Silicone
  • A screwdriver for removing the old rope gasket.
  • A Stanley knife for cutting the end of the new rope gasket.
  • A cloth to remove any excess adhesive.
  • Tape to stop ends of rope fraying.
  1. Remove the old rope gasket with a screwdriver or similar tool by pulling it away from the stove door. This is most easily done if you can remove the door of your wood fireplace stove or heater first.
  2. Using a tape measure, measure the channel’s depth. You can measure the diameter of the old rope gasket; however, this may not be accurate due to the fact it would have been compressed over time.
  3. Measure the approximate length of the rope.
  4. Remove any of the old adhesive with a screwdriver. All of the remaining old adhesive should be removed prior to placing the new rope gasket. (You may need a wire brush to remove any hard to remove pieces of the old adhesive).
  5. Cut down the fibreglass rope gasket to the desired length, using a Stanley knife. You may want to add some tape to the area you are going to cut first to prevent fraying. Leave a small amount so that it can be squashed in, so it has an airtight seal.
  6. Squeeze a line of the HT 300 along the bottom of the wood fire stove or oven channel.
  7. Lay the start of the rope gasket at the middle of the channel. Gently continue laying the remaining rope seal gasket around the stove door whilst pressing gently as it is placed.
  8. When the ends meet, lightly squish the ends against each other so there is a tight seal.
  9. Apply some of the HT300 to the ends of the rope gasket to stick them together.
  10. Leave your rope and adhesive for approximately 24 hours for full cure before using your wood fire stove or heater.

We sell the Fibreglass Braided Rope Seal and HT 300 High Temperature Silicone in a kit.