Key Features & Benefits:

Exceptional Adhesion: Promotes outstanding bond strength between new and existing substrates (concrete, masonry, plaster, wood, metal, tiles, etc.) and the applied material.

Multi-Substrate Compatibility: Suitable for porous and dense surfaces, including concrete, cement screeds, plasterboard, plywood, cured cementitious overlays, ceramic tiles, and certain metals.

Reduces Delamination Risk: Penetrates the substrate surface, consolidating it and minimizing the risk of bond failure due to weak surface layers or dust.

Dust Suppression: Effectively binds loose particles and dust on the substrate surface.

Reduces Substrate Absorption: Regulates the suction rate of porous substrates, preventing premature drying of applied mortars or coatings, leading to better hydration and curing.

Enhanced Durability: Contributes to the long-term integrity and performance of the bonded system.

Easy Application: Ready-to-use liquid, applied by brush, roller, or spray.

Fast Drying: Allows for follow-on work within a practical timeframe.

Solvent-Free / Low VOC: [Choose based on actual product] Environmentally conscious formulation.

Technical Parameters:

Primary Application Areas:

Construction & Renovation:

Concrete Repair: Bonding repair mortars and screeds to existing concrete substrates (floors, walls, structures).

Screeding & Leveling: Priming substrates before applying cementitious or anhydrite smoothing/leveling compounds.

Rendering/Plastering: Ensuring strong adhesion for renders, plasters (cement, lime, gypsum-based), and EIFS base coats to concrete block, brick, or existing renders.

Tile Adhesion: Priming dense, low-absorption substrates or smooth surfaces (e.g., power-floated concrete, existing tiles) before thin-bed or thick-bed tiling. [Note: Not a direct tile adhesive].

Flooring Installation: Preparing substrates for bonded flooring systems (vinyl, linoleum, rubber) and associated leveling compounds. Priming for epoxy or PU floor coatings.

Masonry Work: Bonding new mortar to old masonry or concrete.

External Insulation Finishing Systems (EIFS):

Priming substrates prior to applying insulation boards and base coats.

Wood & Engineered Timber:

Priming plywood, OSB, and timber surfaces before applying cement-based overlays or renders.

Precast Concrete:

Bonding fresh concrete to cured precast elements.

Typical Use Cases:

Preparing old, smooth, or non-absorbent concrete surfaces for new overlays.

Sealing and bonding friable or dusty surfaces.

Improving adhesion on power-floated or steel-troweled concrete.

Priming dense substrates like granite, slate, or terrazzo before patching or overlaying.

Bonding gypsum plaster to concrete ceilings or walls.

As a key coat in multi-layer render systems.

Preparing surfaces for waterproofing membranes.

Application Instructions (Summary):

Substrate Preparation: Surface must be sound, clean, structurally stable, and free from laitance, grease, oil, dust, curing compounds, and loose particles. Mechanical preparation (e.g., light abrasion, scabbling) is often recommended for dense/smooth surfaces. Repair major defects. Ensure substrate is dry (surface moisture < 4% CM typically).

Mixing: Stir thoroughly before and occasionally during use. Do not dilute unless specified for specific conditions.

Application: Apply evenly using brush, roller, or low-pressure spray. Avoid puddling. Ensure complete, uniform coverage without gaps. One coat is usually sufficient; apply a second coat only if specified for highly porous surfaces, allowing the first to become tacky.

Drying/Curing: Allow sufficient time for BondPrime 300 to become touch dry and fully form its film (refer to Technical Parameters). Do not over-apply or allow to pool.

Overcoating: Apply the desired mortar, render, screed, adhesive, or coating within the specified time window (typically 1-4 hours, max 24 hours) for optimal chemical bonding. Always follow the overcoat material manufacturer's instructions.