BioDry ProFlow – Concentrate - Rising Damp Control

Water-Based Damp-Proofing Fluid

BioDry ProFlow is a concentrated potassium methyl siliconate solution designed to form an effective chemical damp-proof course (DPC) when diluted with water. Engineered for low-pressure injection into mortar beds, this water-repellent treatment is ideal for combating rising damp in brick, stone, and cavity wall constructions. Cost-effective and non-flammable, it delivers long-lasting protection by penetrating deep into the masonry structure and lining capillaries to block moisture migration.

Key Features & Benefits

• Water-Based Formula: Non-flammable and easy to handle, ideal for sensitive indoor environments.
• Cost-Effective: High dilution rate (1:11.5) makes 2L concentrate yield up to 25L of ready-to-use solution.
• Effective Against Rising Damp: Forms a continuous barrier in the mortar bed to prevent moisture transfer.
• Low-Pressure Injection: Suitable for use in residential and heritage buildings with minimal disruption.
• Versatile Application: Effective in solid brickwork, stone, rubble-filled walls, and cavity walls.
• Freeze-Tolerant: Unaffected by freezing; suitable for storage and use in cold conditions.

Application Areas

• Rising damp in brick and stone walls
• Remedial damp proofing in existing buildings
• Heritage and conservation properties
• Solid, cavity, and rubble-core walls

Preparation & Application

• Surface Prep: Remove skirtings, plasters, and damaged renders. Rake out mortar beds to 10–15mm depth. Clean debris for adhesion.
• Drilling: Drill 10–14mm holes into or angled towards mortar beds. Spacing ≤170mm. Drill both sides for thicker or cavity walls.
• Injection: Dilute 1 part BioDry ProFlow with 11.5 parts clean water. Inject under 50 psi until mortar bed is fully saturated.
• Finishing: Plug holes and allow walls to dry before replastering. Use a bell-mouth render detail where external render was removed.

Technical Specifications

• Composition: Potassium methyl siliconate
• Mix Ratio: 1 part concentrate to 11.5 parts water
• Coverage: ~2.5L per metre for 230mm thick wall
• Application Method: Low-pressure injection (5–50 psi)
• Appearance: Clear, colourless fluid
• Packaging: 2L jerrycan or 25L container
• Storage: 2 years unopened; diluted solution lasts 6 months

Post-Treatment Recommendations

• Replaster using appropriate salt-resistant renders
• Do not decorate with vinyl paints or wallpapers for 9–12 months
• Maintain good ventilation to aid drying