Pre-packed mortar for weatherproof renders and screeds

Description

Ronafix Pre-packed Render/ Screed is a two component pre-packed mortar supplied as a sack of powder and a bottle of polymer gauging liquid. Ronafix Pre-packed Render/ Screed will produce a weatherproof render; it is bonded to the substrate with Ronacrete Standard Primer.  Ronafix Pre-packed Render/ Screed has very good resistance to water and water vapour, providing excellent resistance to frost, rain and entry of floodwater; resistance to water vapour of a 12mm layer is 60 MN·s·g–1 50 times greater than the same thickness of sand/ cement.  Flexural, tensile and compressive strengths are considerably better than unmodified render.  Typical shrinkage of Ronafix Pre-packed Render/ Screed is 0.01%, similar to that of epoxy resins.  Durability of Ronafix Pre-packed Render/ Screed is considerably greater than sand/ cement render, heat ageing tests showed only a minor reduction in tensile strength after simulated life of 40 years, while flexural strength was increased.

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