Cold Lay Macadam - Pack of 30

Ready-to-use Cold Lay Macadam in 20kg bags, supplied as a pack of 30 for a total of approximately ...

Best current price£19.99from B&Q

Best offers

Shopping.co.uk recommended and popular offers

Lowest priceTrusted

B&Q£19.99Visit shop

- Cold Lay Macadam 20Kg BagSingle Trade-Friendly Bag For PotholeDriveway And Path Repairs

Visit shop

All Offers

12 offers from £19.99 - £400.00

View price history by clicking the chart icon.

B&Q - Cold Lay Macadam 20Kg BagSingle Trade-Friendly Bag For PotholeDriveway And Path Repairs

Free delivery in 1–3 days

£19.99

Visit shop

The RangeCold Lay Macadam 20kg Bag - Single Bag - Dark Asphalt Grey

Free delivery in 1–3 days

£19.99

Visit shop

Product Information

Full details

The B&Q Cold Lay Macadam is a professional-grade solution designed for homeowners and contractors needing to address surface damage on driveways, pathways, or small tarmac areas. This 600kg bulk pack is the ideal choice for larger repair projects, offering the significant benefit of requiring no heating or specialized mixing equipment before application. While it is highly efficient and user-friendly, users should be aware that proper substrate preparation and thorough compaction are essential to ensuring the long-term durability of the repair.

All features

Model Part Number	1386461
Brand	B&Q

Extended Product Information

FAQs

Can I use this for a new driveway?

This product is specifically designed for patching and repairs, not for laying a full-depth new driveway.

Do I need a primer or adhesive?

Generally, no, but ensuring the base is clean and free of loose debris is vital for proper adhesion.

How quickly can I drive on the patch?

While the material can be walked on shortly after compaction, it is best to allow the material time to settle—ideally 24 hours—before subjecting it to heavy vehicle traffic.

Can I apply this in the rain?

It is best to work on dry days. Excessive moisture during application can prevent the binder from adhering correctly to the base.

How should I dispose of empty bags?

Follow your local recycling guidelines for plastic construction packaging.

Troubleshooting

Material is crumbling after application

This is often caused by insufficient compaction or lack of depth in the repair area. Ensure the material is compressed firmly.

Repaired area is sinking over time

The underlying ground (sub-base) may be unstable. Ensure the area under the macadam is solid and free from soft soil before applying.

Material is stuck in the bag and hard to remove

Ensure the product is stored at a reasonable temperature. Cold ambient temperatures can temporarily stiffen the binder; letting the bag sit in a warmer area for a short time can help.

Pros and Cons

Pros

No heating or mixing required
Convenient 20kg bag format for easier transport
Suitable for a wide range of surfaces
Saves time and equipment costs compared to hot-mix asphalt

Cons

Requires significant manual effort for compaction
Storage requires a dry, sealed environment to maintain consistency
Not intended for surfacing entirely new driveways
Performance depends heavily on the quality of base preparation

Setup, Compatibility & Care

To ensure a successful repair, follow these guidelines:

Preparation: Clean the target area thoroughly. Remove all dirt, weeds, and loose aggregate using a stiff wire brush.
Application: Empty the bag into the repair area, slightly overfilling the hole to account for compaction.
Compaction: This is the most critical step. Use a heavy hand tamper or a vibrating plate compactor to press the macadam down until it is level with the surrounding surface.
Storage: Keep all bags sealed and in a cool, dry place until the moment of application. If the bag is left open, the material may harden or dry out prematurely. Do not store in direct sunlight or extreme moisture.