Tarmac Multipurpose Mortar - 5Kg Bag

This mortar is ideal for a variety of tasks including bricklaying, pointing, patching, minor render repairs, and general masonry repair work for bricks, blocks, and some stone applications.

The exact water ratio can vary slightly depending on the desired consistency and atmospheric conditions. Always refer to the specific instructions on the product packaging for the recommended water volume per 5kg bag to achieve optimal workability and strength.

The initial set typically occurs within 1-2 hours, but it will not be fully dry or reach its full strength for a longer period. For proper curing, keep the mortar damp for at least 3-7 days after application, especially in warm or windy conditions. Full strength is generally achieved after 28 days.

While it is a strong and durable multipurpose mortar, for critical structural repairs, it is always recommended to consult with a qualified structural engineer or use specialized structural repair mortars designed for those specific applications. This product is generally for non-structural masonry work.

Unused Tarmac Multipurpose Mortar should be stored in its original, unopened, and tightly sealed bag in a cool, dry, and frost-free location. Protect it from direct sunlight and moisture to prevent premature hardening and maintain its shelf life.

Yes, it is highly recommended to wear appropriate personal protective equipment (PPE) including safety glasses or goggles, sturdy gloves, and a P2 or P3 dust mask when handling and mixing dry mortar to protect against dust inhalation and skin/eye irritation.

The mortar likely has insufficient water. Gradually add small amounts of clean water while continuously mixing until a workable, plastic consistency is achieved. Ensure thorough mixing to avoid dry pockets.

Too much water has been added. Add a small amount of dry Tarmac Multipurpose Mortar from a fresh bag and mix thoroughly until the desired consistency is reached. Avoid adding excessive dry material, as this can alter the mix ratio.

Ensure the substrate is clean, free from dust, grease, loose particles, and old paint. Highly absorbent substrates should be pre-wetted to prevent them from drawing too much moisture from the mortar too quickly. Allow mortar to cure properly.

Cracking can be caused by too much water in the mix, poor substrate preparation, or rapid drying. Ensure the correct water-to-mortar ratio, thoroughly clean and prepare surfaces, and implement proper curing methods (keep damp for several days, especially in warm or windy conditions).

This often occurs in hot weather or when mixing too large a batch. Mix smaller quantities that can be applied within the working time. Store dry mortar in a cool place, and if possible, work in shaded areas during hot conditions. Do not re-temper mortar that has started to set.