Roundtower Marine P15 MortarRoundtower Marine P15 Mortar Roundtower Marine P15 Mortar is a ready mixed natural cement mortar developed for building, bedding, and pointing masonry in marine and water bearing environments. Manufactured using Natural Cement and 5mm down sharp washed flint sand, it provides rapid strength development, high adhesion, and excellent resistance to washout, making it suitable for use both above and below the water line. Marine P15 is the most widely

Suitable for both renovation and new-build projects

Pump-action design – consistent

limewash offers excellent coverage and is available in brilliant white or rich pigmented colours

Fitted with a soft grip handle

It is designed to be used over the In-Situ Running Render Muffle Coat as part of the complete Running Render system

It is particularly useful where consistency

Flexible Friction-Fit Installation

helping simplify wall and roof build-ups while maintaining vapour permeability and thermal performance

acoustic benefits

140 kg/m³ Vapour Diffusion Resistance (μ) 5 Specific Heat Capacity 2100 J/kgK Fire Classification Euroclass E Compressive Strength 100 kPa Tensile Strength Perpendicular to Face ≥ 10 kPa Thicknesses Available 60mm–200mm Standard EN 13171

It will seal the gap between the window or door frame and the wall to ensure there will be no air leakage

plastered directly with Roundtower Board Render