Secil NHL5 Natural Lime 25kg

£16.01 £13.34
In stock
Product Description


  • Building / Brick or Stone Laying
  • Rendering
  • Plastering
  • Internal & External Use


NOTE: This product is delivered by pallet and therefore will incur extra carriage charges at checkout. 

We are happy to help with enquiries, stock availability or any technical help you require, however for security reasons we cannot take orders over the phone. So if you need to chat give us a call on 03301231761 or email us at [email protected].


  • Generally, NHL is harder and less kind to stone or brickwork, with a lower porosity and less breathability than Non-Hydraulic Lime. However, it has properties that make it the ideal choice for certain applications.
  • NHL has natural clay content which allows it to set underwater – hence the name “Hydraulic Lime”. The grading system reflects the active clay content ratios within each of the three materials, NHL2 being the weakest and NHL5 being the hardest product. The 3 grades of NHL are described as Feebly, Moderately & Eminently Hydraulic Limes.
  • These gradings reflect the diminished breathability of the finished product.
  • Strength and frost resistance can also be varied by altering the mix ratio, typically the ratios will range between 1 lime : 1·5 Sand to 1 lime : 3 Sand (by volume) Generally exterior hydraulic lime mortars will be 1 lime : 2 or 2·5 Sand. With cement mortars as well, mix ratios determine the strength and these are detailed in BS 5628. Type I mortar being the strongest and Type v the weakest.
  • Natural Hydraulic Lime is a fine, off-white powder which is made by the calcination of specially selected siliceous chalks or
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Supplier Part NumberSNHL5

Orders and Delivery

Free delivery if your order is over £300 ex VAT. Orders between £100 - £300 ex VAT will be subject to a delivery charge of £50 ex VAT. Please note, we are unable to accept orders less than £100 ex VAT

When ordering on line you can specify the date of delivery, however we would not be able to specify the time of delivery on that day.

• Please note that we have a number of large vehicles, including articulated vehicles that may be used for delivery. Please advise us in the comments on your order if access to the delivery address is limited.

• Due to insurance guidelines, delivery personnel are unable to enter private residences. Delivery will be as far as possible to the kerbside of the delivery address. The recipient of the products is responsible for any additional lifting once the delivery has been made. Please bear in mind that Insulation products can be bulky and / or heavy.

• The delivery driver will require a signature to confirm the goods have been received.

 † Unfortunately we, Insulation Express, cannot deliver to the Highlands & Islands of the UK. However we will be happy to deliver to a freight forwarding company on your behalf.


Returns and Refunds

In the unlikely event that you need to return an item, please contact our team on [email protected] within 14 days of accepting delivery of the item.

Restocking charges may apply. We will discuss this with you upon receipt of the cancellation request. Restocking charges will be applied where the products are no longer required AND NOT for goods returned because either defective or damaged.

We usually charge 30% of value (minimum £25.00).

Please note that we cannot accept returns on special orders. Special orders may consist of items sent via third party shipping companies or made to measure products. If you are unsure on whether or not your item is a special order, please contact us on [email protected] prior to placing the order.

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Free delivery on orders over £300! Terms and Conditions apply

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