Fire-Resistant Ablative Coating – Liquid – Exterior Applications

Product Overview

This high-performance ablative coating liquid is supplied in 5L tubs and is water-based, ready-to-use. It is designed to enhance the fire-resistant properties of stone wool products. When applied to the surface of fire-stop or ablative coated batts, the coating forms a protective char that resists flame spread and insulates the underlying mineral wool core during fire exposure.

The coating dries to a flexible white surface finish, creating a stable and durable barrier that improves fire integrity while maintaining ease of application. It can be brush or spray applied directly on-site and provides an excellent substrate for compatible adhesives and fixing sealants. Available in white as standard, the coating ensures effective fire protection and a uniform finish across large surface areas.

Features & Benefits

• Enhanced fire resistance: Improves the fire performance of stone wool slabs by forming a protective, insulating char.
• Easy application: Ready-to-use viscous coating suitable for both brush and spray application on site.
• Durable finish: Dries to a sound, flexible white surface that resists cracking and remains stable under heat exposure.
• Versatile compatibility: Suitable for use with fire-stop slabs and ablative coated batts.
• Repair and maintenance use: Allows site-applied repair of minor surface damage to pre-coated fire-stopping slabs.
• Container size: Supplied in 5L tubs for controlled, practical application in construction and refurbishment projects.

Applications

• Fire-stopping systems: Applied to stone wool slabs to upgrade or restore fire resistance at wall and floor junctions.
• Site repairs: Used to repair damaged or cut surfaces on ablative coated batts after installation.
• Penetration sealing: Supports reinstatement of fire resistance and acoustic performance around pipes, cables, and service openings.
• Surface finishing: Provides a smooth, flexible coating suitable for painting or adhesive bonding after curing.

Installation Guidance

• Preparation: Ensure surfaces are clean, dry, and free from dust or debris before coating.
• Application method: Apply evenly by brush or spray to achieve full coverage of the slab surface.
• Drying time: Allow coating to dry thoroughly before handling or overcoating; drying time depends on ambient conditions.
• Repairs: Apply an additional layer over damaged areas or cut edges to reinstate the protective barrier.
• Storage: Keep the container sealed when not in use.

FAQs

• Can this coating be painted over? Yes, the coating provides a smooth, flexible surface suitable for painting after curing.
• Is it suitable for outdoor use? While primarily designed for indoor use, it may be suitable for sheltered outdoor applications.
• What is the drying time? Drying time depends on ambient conditions but typically dries within a few hours.