Natural Hydraulic Lime 5.0 -Historic Cement and Gypsum FREE Natural Hydraulic Binder, 55lb Bag

Otterbein Natural Hydraulic Lime 5.0 Hydradur NHL 5 Composition: HYDRADUR is an eminently Natural Hydraulic Lime EN 459-1 - NHL 5 HYDRADUR is an eminently hydraulic lime binder produced from “cooking” limestone in a shaft kiln. Natural Hydraulic Limes are made today in much the same way as they have been for centuries. Natural Hydraulic Limes have unique qualities that have been tested by time and are unrivaled technically in their breathability and durability and for their inherent beauty. Use: Traditional Building repeat. HYDRADURNHL 5 can be used for building, pointing, plastering both internally and externally out on most backgrounds. New construction either on its own with sand and additions or with cement or other hydraulic or pozzolanic materials for new construction. Technical Data Product Brochure SDS Mixing Ratio: 1 part NHL to 4.5 part sand maximum Weight:25 kg Composition: HYDRADUR NHL 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 HYDRADUR NHL 5 is effected through carbonation and hydraulic hardening. HYDRADUR NHL 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. 30% SO3: approx. 0.5% Compression strength ( acc. to EN 459-2): 28 days: approx. 6.5 N/mm2 6 months: approx. 11.0 N/mm2 12 months: approx. 14.0 N/mm2 Safety instructions HYDRADUR NHL 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 HYDRADUR NHL 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. HYDRADUR NHL 5 has the quality certificate