Cement and Mortar on Sale: When a Bargain is a False Economy

Cement on sale for 40% off sounds like a great deal — until you start wondering why it has been marked down.## When a bargain is a trap- Cement reacts with the air — if opened or stored for a long time, it loses its binding strength. A bag from last year sold at a low price is often half as effective.- Expired mortar — polymer additives age faster than the cement itself.- Wrong type for your application — masonry mortar will not replace tile adhesive, even though it looks similar.- Winter mortar out of season — and vice versa: summer mortar exposed to overnight frost loses its properties.## 5 rules for safe shopping1. Check the production date — cement has a shelf life of approx. 3–6 months from production.2. Buy sealed, dry packaging.3. Tile material separately for walls and floors — they are not the same thing.4. Get 10% extra — a second trip to get more bags costs more than the surplus.5. Store supplies in a dry place on pallets, not directly on the ground.The cheapest material is the one that does the job right the first time. Compare contractor offers including materials — on LocalTrader, companies specify exactly what they use.