High-Strength Damp Proofing Cream for Treating Rising Damp in Masonry Dryzone DPC Injection Cream is a patented, high-performance silane/siloxane-based damp proofing cream designed to treat rising damp in brick, stone, and mortar walls. It’s quick to install, clean to handle, and provides a reliable, long-lasting chemical damp-proof course (DPC) after curing. Suitable for use in both renovation and remedial projects, Dryzone offers a BBA-approved solution that penetrates deeply to stop moisture rising through capillary action. Key Features & Benefits BBA Approved: Independently tested and certified (Certificate No. 97/3363). Effective Damp Control: Prevents moisture movement in porous masonry via capillary action. No Spillage or Waste: Supplied in 600ml foil sausages for clean, efficient application with a standard applicator gun. Fast Installation: Drill-only application – no need for high-pressure injection systems. Long-Term Solution: Forms a permanent damp-proof course after curing. Product Details Type: Silane/siloxane-based damp-proof injection cream Pack Size: 600ml foil sausage Coverage: Approx. 1 sausage per 5 metres of 9” solid wall (dependant on wall thickness) Form: Cream Colour: White (turns translucent as it penetrates) Application Tools: Standard 600ml caulking gun or Dryzone applicator Application Instructions Drill Holes: Drill horizontally into the mortar course at 120mm centres, typically 150mm above ground level. Inject Cream: Use an applicator gun to inject cream into each hole from the back to the front in one continuous motion. Allow to Cure: The cream will migrate into the surrounding masonry and cure to form a chemical DPC. Replaster: Use a salt-resistant render to finish the internal walls after treatment if required. Limitations Do not apply to saturated walls – ensure minimal moisture and no standing water. Only suitable for masonry substrates – not for timber or gypsum-based surfaces. Health & Safety Use in well-ventilated areas. Avoid contact with skin and eyes. Wear gloves and eye protection during application. Refer to the Safety Data Sheet (SDS) for complete safety information. Coverage Guide – Dryzone DPC Injection Cream (600ml) Wall Thickness (mm) Number of 12mm Ø Holes per metre Depth of Hole (mm) Metres Treated per 600ml Cartridge 102 (4.5") 8 90 10.0 215 (9") 8 190 5.0 328 (13") 8 310 3.0 440 (17.5") 8 420 2.0 Note: Coverage may vary depending on the condition of the wall and the precision of application. Figures above are based on typical solid wall construction with mortar bed drilling at 120mm centres.