Rock salt is the standard, cost-effective way to keep roads, car parks, yards and footpaths safe through winter. Easy Chemicals Trade supplies rock salt (de-icing salt) in trade quantities across the UK, from single bags for a small site to full pallets for councils, facilities managers and gritting contractors covering a whole season.
Rock salt vs de-icing salt: is there a difference?
No. “Rock salt” and “de-icing salt” describe the same product: mined salt (sodium chloride) spread to melt ice and stop it re-forming. Brown rock salt is mined and carries natural grit and mineral content, which aids traction underfoot but leaves some residue; white de-icing salt is cleaner and often preferred where marble floors or shopfronts are nearby. Both melt ice equally well.
How much rock salt do I need?
A 25kg bag treats roughly 250–500 square metres, depending on conditions, at a typical spread rate of 50–100g per square metre, heavier for compacted snow. Spreading ahead of forecast frost or snowfall works best, since pre-gritting stops ice bonding to the surface in the first place rather than trying to break an existing bond.
- Roads, driveways and car parks — spread before frost or snowfall is forecast.
- Footpaths, ramps and loading bays — priority areas where a slip has the most consequence.
- School, farm and commercial site gritting — planned rounds through the coldest months.
Buying rock salt by the pallet
Sites that grit all season are better served buying ahead of the cold rather than reordering bag by bag mid-storm. We supply Rock Salt 25kg Bag singly or by the pallet (40 x 25kg bags) at trade rates, with the same pallet delivery used across our chemical distribution network. See our chemical delivery guide for typical lead times and how to prepare your site for a pallet delivery.
Storage and handling
Rock salt is non-hazardous. Store bags sealed and under cover, since rock salt absorbs moisture and will clump if left open to the weather. Gloves are recommended for prolonged handling.
Frequently Asked Questions
What is the difference between brown and white rock salt?
Both melt ice equally well. Brown rock salt is mined and carries natural grit and mineral content, which aids traction but leaves residue; white salt is cleaner and preferred where marble floors or shopfronts are nearby.
At what temperature does rock salt stop working?
Rock salt is effective down to around −6°C to −8°C. Below that, melting slows significantly and mixing with grit for traction is recommended.
How much rock salt covers a car park or driveway?
A 25kg bag typically treats 250–500 square metres at a spread rate of 50–100g per square metre, more for compacted snow. Larger or regularly gritted sites are usually better buying by the pallet.
Can I use rock salt to soften water?
No — the mineral content makes it unsuitable for softeners. Use a dedicated water softening salt instead.
Can I buy rock salt in bulk before winter?
Yes. Ordering ahead of the first cold snap means your gritting stock is on site and ready, rather than competing for stock during a cold spell. We supply single bags and full pallets year-round.
Get ahead of winter with rock salt from a UK chemical distributor that holds stock and delivers by pallet nationwide. Order a single bag to see you through a cold snap, or set up a pallet order for the whole season.
Related guides
- Chemical Distributors UK — how we source, stock and supply chemicals to trade buyers.
- Chemical Delivery in the UK — what to expect on lead times and preparing your site for a pallet delivery.
- Brick Acid UK — buying dilute hydrochloric acid for masonry and driveway cleaning.