Over time, wood heaters and stoves can develop cracks and holes, allowing smoke and fumes to escape into a room. Use Firewise Black Patch Stove Putty to fill holes and cracks.
Firewise Black Patch Stove Putty is a premium, heat-resistant repair compound designed for fixing cracks, holes, and gaps in solid fuel stoves, fireplaces, and combustion heaters. This easy-to-use putty creates a strong, durable seal that withstands high temperatures, helping to maintain efficiency and safety in your heating appliances.
Ideal for:
- Fill holes
- Repairing cracks
- Sealing flues
- Sealing grates
- Installing Fibreglass Rope to Fire Doors
- Ensuring smoke and gas-tight joints
Suitable for:
- Wood heaters
- Fuel Stoves
- BBQs
Handy Hint:Â Use Firewise Black Beauty Cast Iron Stove Polish to help prevent rusting, flaking and pitting.
Key Features
Features & Benefits
- Heat-Resistant & Durable – Formulated to withstand extreme temperatures for long-lasting repairs.
- Strong Adhesion – Bonds securely to metal, brick, and other heat-exposed surfaces.
- Easy to Apply – Smooth, workable consistency for simple application and shaping.
- Multipurpose Use – Ideal for sealing gaps and repairing cracks in fireplaces, stoves, flues, and heaters.
How to Use
- Clean the area to be fixed or filled by removing any loose material and dust.
- When opening the inner seal, place the tub on a flat surface to avoid spillage. Mix the stove putty thoroughly until an even consistency is reached.
- Pre-wet porous surfaces and apply with a putty knife or suitable tool.
- Allow a minimum of 24 hours to dry – cold, humid and wet weather will prolong the drying time. The product will be rock-hard when set. It can be painted after 7 days.
Note: It is not recommended for use outdoors unless it is protected from wet weather by a roofed area. To avoid unused product drying out, keep the lid tightly closed and store it away from heat.
Safety, SDS & Other Documents
Safety & First Aid
SAFETY DIRECTIONS:Â Keep out of reach of children. Avoid contact with skin and eyes. Wear suitable gloves and eye/face protection.
FIRST AID:Â For advice, contact a Poisons Information Centre (e.g. phone Australia 13 11 26; New Zealand 0800 764 766) or a doctor (at once). If swallowed, do NOT induce vomiting. If in eyes, hold eyelids apart and flush the eye continuously with running water. Continue flushing until advised to stop by a Poisons Information Centre or a doctor, or for at least 15 minutes. If skin or hair contact occurs, remove contaminated clothing and flush skin and hair with running water.
SDS & Documents
Click on the links below to view and/or download.








Jenny (verified owner) –
Putty worked very well. Would recommend to anyone
Roy Jacobi (verified owner) –
Great product. Firebox in my fireplace is made with stainless steel (backed with fireproof wool) which has several holes after using for 30 years. The putty does an excellent job of patching the firebox. Great product which withstands the firebox temperatures.
Douglas T. (verified owner) –
I’ve used this product before on my antique Kings world small potbelly room heater. It’s only because I dismantled it for some cleaning and polishing, that I have had to seal the various sections again. A good product.
Anonymous (verified owner) –
Great product with fast shipping.
Michelle Hockey (verified owner) –
Worked well
Anonymous (verified owner) –