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• Features & Benefits
• Application Notes
• Limitations

Features & Benefits

• Conbextra Bedding Mortar is supplied as a ready to use dry powder and only requires the addition of clean water
• Non shrink
• High strength
• Chloride free
• Produces a masonry mortar capable of giving a smooth finish
• Easy to use - no priming required
• Pre-blended to overcome site batching variations
• Low wastage due to ability to mix part packs
• Rapid strength gain
• Fosroc Conbextra BM is non-flammable
• Complies with BS 6920: 2014 Effect on Water Quality
• The approximate yield per 25kg bag is 12 litres
• Please refer to the Product Data Sheet for full details of:
  • Standards Compliance
  • Properties
  • Mixing
  • Application Instructions
  • Cleaning
  • Storage
  • Health and Safety

Application Notes

• Pre-soak substrate with water ensuring there is absolutely no free water prior to bedding in
• For hand applied applications a forced action mixer is required. For a single bag the product can be mixed in a drum using a Renderoc Mixing Paddle (MR4) and a slow speed (400 – 500 rpm) heavy duty drill
• Place the Bedding Mortar within 20 minutes of mixing in order to maintain workability
• The mortar should be applied by trowel. Use a dampened steel trowel to finish

Please see the Product Data Sheet for detailed information.

Limitations

• Conbextra BB92 should not be used when the temperature is below 5ºC and falling
• The product should not be exposed to moving water during application
• Exposure to heavy rainfall prior to final set may result in surface scour
• When the air or contact surface temperatures are 5°C or below on a falling thermometer, it is recommended to use hot water (30-40°C) to accelerate strength development
• Substrates should be free from ice
• Normal precautions for winter working with cementitious materials should then be adopted, specifically protecting the mortar from freezing in the first 48 hours after placing
• At ambient temperatures above 35°C the mixed material should be stored in the shade