A super-fine, heritage-toned Natural Cement top coat engineered specifically for in-situ running of external mouldings. Blending Natural Cement, fine silica sand, and natural earth pigments, it lays down a tight, crisp face with excellent arris retention and very low shrinkage—faithfully echoing the warm, earthy browns of traditional Roman Cement façades.
Purpose-made for the re-production and repair of external cornices and mouldings, this finish coat is balanced to flow beautifully under the running mould while holding shape on delicate profiles. It’s a joy to run.
Key benefits
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Rapid setting for continuous, same-day running sequences.
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Super-fine grading for sharp detail, clean arrises, and a refined face.
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Low shrinkage to minimise checking and edge pull-back.
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Heritage tone: through-body pigment matched to Roman-cement browns.
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Completely natural binder (Roman-cement tradition—no Portland cement).
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System-ready with Muffle (Base) Coat and Casting Blend.
Important: In-situ Running Render is very fast setting. Always use with Tempo retarder to secure practical open time and a controlled, predictable set—especially in warm, dry, or windy conditions.
Intended use
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Top/face coat for in-situ running of external mouldings over the Muffle (Base) Coat.
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Restoration of Roman-cement façade details where a fine, heritage-accurate finish is required.
