Cornerstone Wintermix is a dry ready mixed multipurpose natural hydraulic lime mortar, render and plaster formulated explicitly for work in challenging cold environmental conditions. Available in the colour off-white.
Engineered with precision, using 100% pure natural hydraulic lime, natural sands, and additives to create a high-performance winter work multipurpose mortar, render and plaster. With improved workability, an accelerated set, and an enhanced cure, this mortar is designed explicitly to combat frost damage and limit the impact of frost crystals. Once the initial strength is achieved, strength development slows in line with a standard NHL mortar. Free of synthetic polymers and Portland Cement. Available as standard with Otterbein NHL2 or Saint-Astier® NHL3.5. Other binders and mix ratios are available upon request.
Well-suited for winter work applications which require additional support to combat the risks associated with winter work in challenging conditions.
– Features the behaviour of a traditional NHL mortar
– Contains no Portland Cement
– Contains no modern synthetic polymers
– Limits the impact of ice crystals to protect the integrity of the render
– Rapid initial strength gain supports frost resistance
– Minimised likelihood of shrinkage cracking
– Increased water retention for an improved cure
– Enhanced workability for those behind the trowel
Suitable for external use, where the binder strength is appropriate for the host background or surface.
Due to the inital rapid strength development of Wintermix, the NHL2 versions should be treated as an NHL3.5 mortar and the NHL3.5 should be treated as an NHL5 for specification purposes. Appropriate for various project types, including conservation, renovation, or restoration. Relevant for building, pointing and coarse render coat applications in cold environmental conditions when paired with best practice curing and aftercare.
