Bostik Tile Adhesive - Grey

Bostik MC310 OPF is a non-slip, flexible wall & floor tile adhesive which only requires the additi...

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Product Information

Full details

The Bostik MC310 OPF is a versatile, non-slip, and flexible tile adhesive designed for a wide range of wall and floor applications. It simplifies tiling projects by only requiring water for mixing, making it suitable for both interior and exterior use, including areas with underfloor heating or occasional vibration. While it offers excellent adhesion to prepared surfaces, users should be mindful of its working and setting times.

All features

ColourGrey
Model Part NumberMC310
BrandBostik

Extended Product Information

FAQs

How much water should I add to the Bostik MC310 OPF?

Refer to the product packaging for the exact water ratio. Typically, it's around 4.5-5.5 liters of water per 20kg bag, but always confirm with the instructions for best results.

What is the pot life of the mixed adhesive?

The pot life is approximately 3 to 4 hours at 20°C. This can be affected by temperature and humidity.

What is the open time for this tile adhesive?

The open time is approximately 20 minutes at 20°C. This is the time you have to adjust tiles after application.

Can I use this adhesive for natural stone tiles?

Yes, Bostik MC310 OPF is suitable for fixing natural stone tiles, provided the substrate is stable and prepared correctly.

Is this adhesive suitable for exterior use?

Yes, it is suitable for most interior and exterior installations, including those exposed to weather.

How long does it take for the adhesive to set?

The adhesive typically sets in approximately 24 hours at 20°C. Full strength may take longer, consult product data for specific curing times.

Can this adhesive be used with plywood overlay?

Yes, it is suitable for use with WBP 15mm plywood overlay, provided the plywood is securely fixed.

Troubleshooting

Adhesive seems too dry or too wet.

Ensure you are using the correct water-to-powder ratio as specified by the manufacturer. Adjustments may be needed based on ambient temperature and humidity.

Tiles are slipping after placement.

Verify that the correct amount of adhesive is being applied with the appropriate trowel notch size. Ensure the substrate is level and the adhesive has not started to skin over before placing tiles.

Adhesive is setting too quickly.

Work in smaller batches. Ensure the ambient temperature is within the recommended range. Avoid direct sunlight or heat sources on the mixed adhesive.

Poor adhesion to the substrate.

Confirm the substrate was adequately prepared, clean, and dry before application. Ensure the adhesive was applied evenly and the correct type of trowel was used.

Pros and Cons

Pros

  • Easy to mix and use with just water.
  • Non-slip formulation aids in tile positioning.
  • Flexible for use with underfloor heating and external applications.
  • Adheres to a broad range of common building substrates.
  • Suitable for a wide variety of tile types, including large format.
  • Good working and open times for practical application.

Cons

  • Requires careful preparation of the substrate for optimal adhesion.
  • Working and open times are dependent on temperature and humidity.
  • Not suitable for heavy vibration areas or substrates prone to significant movement.
  • Requires accurate water mixing ratio for consistent performance.

Setup, Compatibility & Care

Setup:

  1. Ensure the substrate is clean, dry, and free from dust, grease, and any loose material.
  2. Mix the Bostik MC310 OPF with clean water according to the manufacturer's instructions for the desired consistency. Typically, this involves gradually adding water to the powder while mixing.
  3. Allow the mixed adhesive to stand for a few minutes, then re-stir before application.
  4. Apply the adhesive to the substrate using a notched trowel, ensuring even coverage.
  5. Place tiles into the adhesive with a slight twisting motion, pressing firmly.

Compatibility:

  • Tiles: Ceramic, large format porcelain, mosaic, quarry, and natural stone tiles.
  • Substrates: Properly prepared concrete, plasterboard, sand/cement render/screeds, WBP 15mm plywood overlay.
  • Installations: Interior and exterior walls and floors, swimming pools, underfloor heating, areas subject to limited vibration.

Care:

  • Keep the adhesive mix covered when not in use to maintain workability.
  • Clean tools and spills immediately with water.
  • Store the product in a cool, dry place, away from direct sunlight and frost.