Natural Hydraulic Lime Products

Mike Wye are a leading UK natural hydraulic lime supplier, with large stocks for immediate dispatch nationwide.

Natural hydraulic lime (NHL) comes from limestone containing natural impurities of clay and other minerals. The amount of impurities within it determines how hard it will set.

There are three European classifications of natural hydraulic lime: NHL 2, NHL 3.5 and NHL 5. These grades are based on the compressive strength of laboratory mortars after 28 days. These are often somewhat misleadingly termed feebly hydraulic, moderately hydraulic and eminently hydraulic.

The strength of a hydraulic lime mortar varies depending on the manufacturer of the hydraulic lime. Some NHL will test higher in the qualifying band, and some test lower. Strength will also vary depending on the mix ratio and the type of aggregate used.

NHL works by setting in the presence of water, hence the term ‘hydraulic’.

We generally recommend the use of hydraulic lime where the need for breathability and lower strength is outweighed by the desire for an earlier and harder set. 

For lots of detailed information on lime and its uses visit www.naturalhydrauliclime.net

Fantastic service from ordering, quote and payment, easy to deal with and speedy delivery.

Marc James

7. April, 2022.

Always very good advice and customer service; delivery drivers most helpful also;

Neil Macilwaine

21. March, 2022.

The staff at Mike Wye have helped me whenever I have needed it giving extensive advice about different methods of insulating an old house. They have provided the technical calculations I needed alongside an explanation of how the system works. Very Knowledgeable and very accommodating,

Laura

2. March, 2022.

Just got off the phone with someone at this company. I'm calling from Spain and most likely to find a local supplier. However even so Mike Wye and Associates happily spoke to me and advised me through what their systems do and how to best fit my project in a sustainable and ecological manner. Top advice. Knowledgeable. Very polite. Best regards from Galicia!

Sirus Kargar

25. February, 2022.

Absolutely first class customer service and advice. Personally after speaking to a competitor I wouldn't go anyway else. Even though two tubs were delivered smashed :( sure they will sort for me

Suzi Smith

13. December, 2021.

The team at Mike Wye are fantastic. good prices and V helpful with info

Glenn Byrne

10. December, 2021.

I would highly recommend Mike Wye & Associates for their very helpful and efficient service and supply of specialist paints.

Douglas Palmer

25. October, 2021.

All good. Helpful staff.

Giles Edwards

29. September, 2021.

Reviews