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Your cart is empty.Mixing Ratio 1 part NHL to 3.5 part sand maximum Weight 25 kg Composition CALCIDUR NHL 3.5 is a natural hydraulic lime acc. to EN 459-1. It is produced through burning and staking a specifically selected shell limestone. The stabilizing process of CALCIDUR NHL 3.5 is effected through carbonation and hydraulic hardening. CALCIDUR NHL 3.5 is free from cement! Properties historic, cement- and gypsum-free natural hydraulic binder high sulfate resistance low-tension hardening process very good subsequent hardening properties no penetration of damaging salts into the masonry high elasticity and water retention capacity in mortar produced very good side adhesion at stone low elasticity module Application For the production of plaster- and brick mortar in ecological,biological building construction, in the restoration and preservation of historic buildings. Storage Dry, if possible on wooden shelves and protected against draft. Technical data Bulk density: approx. 0.55 kg/dm3 free CaO: approx. 32% SO3: approx. 0.4 % Compression strength ( acc. to EN 459-2): 28 days: approx. 4.8 N/mm2 6 months: approx. 8.5 N/mm2 12 months: approx. 10.5 N/mm2 Safety instructions CALCIDUR NHL 3.5 reacts strongly alkaline with water, thus: Protect skin and eyes, rinse thoroughly with water in case of contact, immediately contact doctor in case of eye contact. Quality-monitored production CALCIDUR NHL 3.5 is continuously tested in our plant laboratory within the scope of our in-house monitoring with respect to the fulfilment of composition and properties. This will ensure a uniform quality of the product. CALCIDUR NHL 3.5 has the quality certificate „Building lime“ and is certified acc. to EN 459-1.
Tex
Reviewed in the United States on November 25, 2021
Great product. After having gone to nearly every hardware store in my area and taking home two different products that were not the correct product to repoint an 1800s lime mortar structure, I finally found this and it worked excellent. I was very shocked at how close the color is. I mixed this 2 parts hydraulic lime to 5 parts sand. The water portion can vary depending on the type of sand. At one point with dry sand I used 1.5 parts water and another time only 1 part water. Anyone else have brick sizes of 8.5 inches and 8.25 inches? Not sure when this was built. I'd show pictures but I don't want you laughing at my newbie technique hahaha
JMB
Reviewed in the United States on December 8, 2018
I used several different NHL3.5 hydraulic lime before and this is excellent provided one find good plaster sand! Somewhat expensive but free shipping so it is quite reasonable if one does not need large qualities.I wish that Otterbein premixed lime plaster would be also available in a similar fashion.
Kris
Reviewed in the United States on October 23, 2018
This product was easy to use and is perfect for my historic sandstone.
matt
Reviewed in the United States on December 3, 2017
Good product, but please be sure you know what you are getting and how to use it. We made a very nice historical mortar by mixing it 1:3 ratio with local masonry sand.
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