Refractory Mortar 1300°C - In 25 kg bag

Mainly composed of high-alumina cement and grog, the hydraulic-setting high-temperature refractory mortar 1300°, dark grey in colour, is recommended for refractory masonry work needing to withstand temperatures of up to 1300°C:
✅ Laying and pointing firebricks with a trowel in ovens, fireplaces, barbecues, etc.
✅ Building chimney flue blocks.
✅ Repairing old joints and sealing cracks in fireboxes.
✅ Masonry work requiring rapid execution.

Characteristics:
- Maximum service temperature: 1300°C
- Grain size: 0 - 3 mm
- Type of set: Hydraulic set.
- Mixing water: approximately 14 to 18% depending on the consistency required
- Can be used in certain corrosive environments.
- Theoretical quantity for laying 22 x 11 x 6 cm bricks on their smallest face with a 10 mm joint: 40 kg per 100 bricks.
➡️ This mortar allows joints of between 3 mm and 10 mm.

Application:
- Mix the product dry.
- Wet the batches as needed.
- Use the batches within the following half hour.
- Do not re-temper or add water.
- Substrates must be clean and slightly wetted.
- After 24 h of drying, raise the temperature in steps of 50°C/hour.

⚠️ This mortar must not be used at temperatures below -5°C.
⚠️ Not recommended at all for making cast parts: in this case, use the 1300° refractory castable

Storage:
- Frost-free (5° minimum), dry and protected from sun and weather.
- Shelf life: 9 months minimum (and longer if stored in good conditions)
- This product cannot be returned