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B&Q£19.99Visit shop - Cold Lay Macadam 20Kg BagSingle Trade-Friendly Bag For PotholeDriveway And Path Repairs
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The Range£79.99Visit shop Cold Lay Macadam 20kg Bag Pack of 5 - Red
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The B&Q Cold Lay Macadam is an ideal solution for homeowners and professional contractors looking to perform quick, durable asphalt repairs on driveways, paths, and potholes without the need for specialized heating equipment. Providing 400kg of material across 20 manageable 20kg bags, this product offers a versatile fix for surface maintenance, though it requires proper compaction and dry conditions to ensure long-term integrity.
| Model Part Number | 1386442 |
|---|---|
| Brand | B&Q |
While not strictly required, using a bitumen tack coat or primer on the edges of the repair can improve bonding, especially in older asphalt.
It is recommended to allow the material to set for a few hours, depending on ambient temperature, before subjecting it to vehicular traffic.
Coverage depends on the depth of the repair, but generally, 100kg of cold lay macadam will cover approximately 1 square meter at a 50mm compacted depth.
No, this product is designed for patching and repair. It is not suitable for the base or structural load-bearing requirements of a new driveway.
Yes, provided the bags remain sealed. Keep them away from direct heat sources and naked flames.
The underlying base was likely not firm enough or the material was not compacted in thin enough layers. Ensure you compact in 50mm layers.
Cold temperatures can stiffen the binder. Store bags in a warm environment for 24 hours prior to use to soften the material.
The edges were likely not cleaned or cut to a vertical profile. Ensure the hole is clean and edged properly for a secure bond.
Before application, ensure the repair area is clean, dry, and free of loose stones or vegetation. While the product is weather-resistant once cured, avoid applying it during heavy rain or freezing temperatures, as moisture can affect the adhesion process. Store any unused 20kg bags in a cool, dry place and ensure the plastic packaging remains tightly sealed to prevent the material from hardening. If the macadam feels stiff due to cold storage, keeping the bags in a warmer area for a few hours before application can make the material easier to spread and compact.
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