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NHL 5 Lime Mortar Fine Union Jack Made in United Kingdom

£10.00 + VAT Cards Accepted
  • Typical delivery £8.45 + VAT typical delivery, Estimate Delivery
  • Availability: In Stock

Traditional lime mortar, off-white with a fine texture.

  • Simple to Use
  • Ready to Mix, Add Water
  • Suitable for a 4mm+ Joint
  • 100% Natural and Breathable
  • Quality and Consistency
  • Waterproof Bag (Recyclable)
  • CE Certified
  • Technical Support

Suitable for dense masonry* Masonry Density Chart

NHL 5 Lime Mortar is suitable for hard / high density building materials.*

  • Engineering Bricks
  • Slate
  • Flint
  • Basalt
  • Granite
  • Marble
  • Travertine

Suitable for masonry with severe exposure** Masonry Exposure Guide

NHL 5 Lime Mortar is used for flooring, roofing and other masonry with severe exposure to wind driven rain.**

  • Cobble
  • Paving
  • Paths
  • Driveways
  • Flaunching
  • Coping Stones
  • Parapets
  • Chimneys
  • Roofing
  • Ridge Tiles
  • Eaves
  • Bridges
  • Dams
  • Canals
  • Harbour Walls
  • Marinas
  • Sea Fronts
  • Sea Defences

Suitable for joints with a thickness of 4mm or more

Fine mortar has a fine texture and is suitable for bedding, pointing and repointing joints with a thickness of 4mm or more. Sometimes masonry has non-standard joints of varying thickness, this is very common with random stone walling. Where this is the case, find the narrowest joint in the structure and select a lime mortar suitable for that.

Product Details

High Standards

Hydraulic Lime Mortar is CE certified and is manufactured to British Standards BS EN 998-2:2016 following heritage guidelines.

Authentic, Pure and Simple

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

It's All Inside the Bag

All the materials you need are packed inside:

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

The lime, sands and aggregate are carefully selected and sourced from around the British Isles.

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.

The product is mixed in its entirety using all the aggregate and natural hydraulic lime provided, this ensures consistent appearance and performance.

There is generally sufficient time to work with the mortar before it reaches an initial set. A little water can be added to the mortar as required throughout the day to keep it workable.

Integrity is Everything

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

The tough, waterproof packaging 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. Don't hesitate to call if you need any help.

Technical

Specification
BS EN 998-2:2016
Weight
25kg (approx.)
Hue
Off-White
Tone
Light
Texture
Fine Texture
Binder
NHL 5
BS EN 459-1:2015
Aggregate
BS EN 13139-1:2015
Grading
Gf80
Bed size
4mm ≥
Density
1,700 kg/m³ ± (at 91 days)
Vapour permeability
0.72 grams / 100mm² / 24hrs ±
Compressive strength
4.10 N/mm² ± (at 91 days)
Flexural strength
1.71 N/mm² ± (at 91 days)
Resistance to freeze thaw
Very high
(>50 cycles)
Resistance to sulphate exposure
Very high
(>50 cycles)
Resistance to freeze thaw in sulphate conditions
Moderate
26-50 cycles
Capillary rise
Moderate
(76-100mm in 6 hours)
Mortar durability class
9 to 10
Carbonation rate
Moderate
Initial set
Overnight ±
Curing
90 days ±
Shelf life
Use within 12 months of purchase§

* Masonry density can vary by quarry, manufacturer, age and condition of material, this information serves only as a general guide, disclaimer.

** Exposure is approximated and can vary, this information is presented as a general guide, disclaimer.

Technical data is approximated as it can vary significantly depending on various factors, particularly weather conditions. The information presented outlines typical behaviour you might expect in the United Kingdom with ambient temperatures of 10°C in sheltered areas with low exposure to wind and moisture. The information is nevertheless useful to establish the relative properties and performance of different products, disclaimer.

The colour of the mortar will continue to lighten until it fully cures. This difference in colour can be quite dramatic. In good weather, the mortar will appear much lighter after 10 days.

§ Products should be stored with packaging unopened, natural hydraulic lime is vulnerable once open and exposed.

Disclaimer It is the customer's responsibility to determine the suitability of this product. Samples should be prepared and approved before complete application of this product. Appropriate testing should be undertaken prior to application where compressive strength or density are a critical factor.