Heat resistant render & plaster system

Heat Resistant Render and Plaster for Fireplaces and Stoves

Vitcas Heat Resistant Render & Plaster System is a multi-layer solution created for surface finishing in high-temperature environments. This system is specifically designed to provide a safe and lasting decorative finish around fireplaces, cassette stoves, solid fuel burners, and other heating appliances where conventional plasters fail due to thermal stress.

Key Features

  • Thermal resistance up to 650°C / 1200°F - Withstands elevated surface temperatures generated by stoves and fireplaces.

  • Two-component render and plaster system: Includes Vitcas Fireplace Render and Heat Resistant Plaster for optimal substrate bonding and finishing.

  • Compatible with fire-rated boards and adhesives: Can be used in conjunction with Vitcas High Temperature Plasterboard and Vitcas PVA Adhesive Sealer, and is compatible with various surfaces including masonry and concrete.

  • Ideal for renovations and new installations: Suitable for both chimney breast refurbishment and finishing around new solid fuel appliances.

  • Prevents cracking and delamination: Engineered to withstand thermal expansion and contraction without delaminating.

  • Smooth, paintable surface: Provides a professional finish ready for paint or decorative coatings.

System Components

  1. Fireplace Render: A specially formulated heat-resistant base coat render. Provides structural integrity and forms the foundation layer for further surface treatment.

  2. Heat Resistant Plaster: A fine finishing coat applied over the cured render layer to create a smooth, decorative surface. It is designed for excellent adhesion and long-term performance in high-temperature zones.

Applications

  • Surrounds and recesses for cassette stoves and inset wood burners

  • Chimney breasts and fireplace surrounds for solid fuel appliances

  • Areas behind heat-accumulating stove systems and tiled stoves

  • Renovation of cracked or failed conventional plaster around fireplaces

Installation Guide

Adhesive Sealer - Vitcas PVA

Vitcas PVA, HT Boards Adhesive Sealer, is used on surfaces, tiles and fire boards prior to the application of  Vitcas® Heat Resistant Tile Adhesive, Heat Resistant Plaster and Fireplace Render.

Heat Resistant Plaster

Vitcas® Heat Resistant Plaster is a fireproof smooth finishing coat added on top of Vitcas® Fireplace Render, Vitcas® HT Boards and construction boards. The plaster is resistant to 650oC / 1200oF

High Temperature Plasterboard

Vitcas® High Temperature Plasterboard is a non-combustible decorative board. Fire resistant and contains no gypsum. Ideal for use in domestic applications.

Fireplace Render

Vitcas® Fireplace Render is a prepared dry mix which provides a protective rendering for vulnerable materials, e.g. brick, stone and concrete, which can be damaged by exposure to heat. Resistant to 1400oC.
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