NHL 3.5 Lime Mortar
25kg (approx)

  • It's simple, ready to mix, just add water
  • 100% natural, no additives or platicisers
  • Natural hydraulic lime (NHL 3.5)
  • Totally breathable, virtually no shrinkage
  • Tough waterproof bag
  • Easy to follow instructions and specification
  • Free technical support with every order

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Eng. bricks, granite, copings, paving, etc.
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Product Details

High Standards

Hydraulic lime mortar is designed and manufactured to British Standards following English Heritage guidelines. The product is CE approved.

Authentic, Pure and Simple

100% natural, breathable and sustainable. The mortar doesn't contain anything artificial, no additives or plasticisers.

It's All Inside the Bag

All the materials you need:

  • Natural Hydraulic Lime (NHL)
  • Blended Sands & Aggregates

The lime, sands and aggregate are carefully selected and sourced from around the United Kingdom.

Easy to Mix

Mixing the mortar is really simple. All you need to do is stir the lime and aggregate together, then add clean water and mix to the correct consistency.

Integrity is Everything

As a heritage product, the hydraulic lime mortar's performance depends on the integrity of the natural material.

The tough, waterproof bag keeps the material in perfect condition which is critical given it's hydraulic nature.

The material is not compromised in damp or wet conditions. It is also protected from internal condensation in hotter temperatures.

Economy & Convenience

These bags are popular with building contractors as they're economical and practical for projects large and small.

Orders for 8 or more bags are typically delivered using the UK's largest pallet network companies to keep delivery costs to a minimum.

If space is tight on-site you can call us to arrange partial delivery of your goods on different dates. We'll find a solution that works best for you.

Buy with Confidence

Lime mortars from Conserv® come complete with clear, concise instructions and free technical support. Call us any time for down to earth help and advice.

Frequently Asked Questions

What can I use NHL 3.5 lime mortar for?

NHL 3.5 is suitable for most types of building work in most locations and conditions. Facing bricks, commons, blockwork, sandstone, limestone, terracotta. Walling, bedding, pointing, re-pointing, patching.

What is hydraulic lime?

It's a traditional lime, it is mixed and applied the same way you would use a modern cement. This makes it practical for modern construction. It has the ability to set underwater, hence the name hydraulic.

Do I need to add cement to make it set?

Absolutely not, hydraulic lime sets just fine. It is often confused with hydrated lime which can be added to cement mortar to increase workability. Genuine traditional lime mortars do not contain cement, ever.

NHL 3.5 Lime Mortar
£10.00 + VAT
Delivery £8.00 + VAT
Delivery Price is for Mainland UK Only
Deliver Elsewhere? Get a Price, Get Quoted
Availability: In Stock

Mosswood Gold

Light yellow with a fine texture
Change Mix
Mosswood Gold
Usually Delivered Next Working Day
When ordered before 12 noon
Orders for larger volumes may take longer
Delivery
International Delivery Available.
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Did You Know?

In practical terms, mixing and working hydraulic lime mortar is just like using an OPC mortar.

Shrinkage cracks are virtually eliminated using hydraulic lime mortar due to its hydraulic set.

Major labour and time saving benefits of hydraulic lime mortar can offset the higher cost against the non-hydraulic mortar.

You can safely repair non-hydraulic with hydraulic lime mortar. They are compatible and co-exist quite happily.