BA - Heat Resistant Board Adhesive 1350°C

VITCAS BA Heat Resistant Board Adhesive – Ready-Mixed High Temperature Adhesive 1350°C

VITCAS BA Heat Resistant Board Adhesive is a ready-mixed, air-setting adhesive formulated for bonding and jointing high-temperature insulation boards, vermiculite boards, fireplace construction boards and high-temperature plasterboards. Rated to 1350°C (2460°F), VITCAS BA is designed for fireplace construction, stove surrounds and other high-temperature insulation applications.

VITCAS BA Board Adhesive is suitable for joining adjoining boards and fixing compatible insulation boards to flat brickwork and blockwork. It accommodates bonding gaps up to 5 mm, with an approximately 3 mm adhesive bed recommended for standard applications. For uneven masonry or thicker adhesive layers, VITCAS HB60 Hydraulic Bonded Adhesive is recommended where appropriate.

Key Features

• Temperature resistance: Rated to 1350°C (2460°F) for high-temperature board bonding and jointing applications.
• Ready-mixed formulation: Supplied ready to use without adding water.
• Air-setting adhesive: Sets without heat, with drying time dependent on adhesive thickness and ambient conditions.
• Board compatibility: Suitable for insulation boards, vermiculite boards, high-temperature plasterboards and fireplace construction boards.
• Thin-bed application: Suitable for bonding gaps up to 5 mm on prepared surfaces.
• Sandable finish: Can be sanded after drying to produce a smooth joint surface.

Typical Applications

• Fireplace construction: Bonding and jointing VITCAS CS Fireplace Construction Boards when constructing fireplace enclosures and false chimney breasts.
• Stove surrounds: Fixing compatible heat-resistant boards in wood-burning and multi-fuel stove installations.
• Vermiculite insulation: Joining and securing vermiculite boards in suitable high-temperature applications.
• High-temperature plasterboards: Bonding and jointing boards used in protective linings and heat-resistant finishing systems.
• Masonry fixing: Attaching insulation and construction boards to flat brickwork or blockwork where the bonding gap does not exceed 5 mm.
• Board repairs: Rebonding compatible board sections and repairing small joints in existing high-temperature insulation installations.

Application Instructions

1. Surface preparation: Ensure all board and masonry surfaces are clean, dry and free from dust, grease and loose material.
2. Priming: Apply VITCAS PVA Adhesive Sealer to the board faces being bonded, following the primer manufacturer's instructions.
3. Stirring: Stir VITCAS BA Heat Resistant Board Adhesive thoroughly in the tub before application.
4. Adhesive application: Using a 6 mm notched tile trowel, spread the adhesive evenly onto the prepared surface or board edges to form an approximately 3 mm adhesive bed.
5. Bonding: Position the boards and press firmly into place, ensuring adequate adhesive contact between adjoining surfaces.
6. Drying: Allow VITCAS BA to air set and dry before finishing or heating. Drying time depends on adhesive thickness, temperature and ventilation.
7. Finishing: Once fully dry, excess adhesive can be sanded to obtain a smooth joint surface.

Important Application Notes

• Maximum bonding gap: VITCAS BA is intended for gaps up to 5 mm. For thicker applications or uneven masonry, use VITCAS HB60 where suitable.
• Board compatibility: Ensure the selected insulation or construction board is suitable for adhesive fixing and the intended operating conditions.
• Mechanical support: Provide additional fixings or support where required by the board installation system. Adhesive bonding should not be assumed to provide structural support.
• Temperature suitability: The 1350°C rating applies to the adhesive material. The allowable operating temperature of the complete installation depends on the boards, substrate and other system components.

Technical note: VITCAS BA Heat Resistant Board Adhesive is designed for bonding and jointing compatible high-temperature boards. It is not a substitute for structural fixings or a tested firestopping system.