Dampcheck Plus (25 L)


Inject effective rising damp treatment with Dampcheck Plus, a ready-to-use, BBA-approved, silane-modified fluid. Applied via an electric pump or gravity feed, it forms a reliable damp-proof course in masonry, quickly developing water repellency. It’s low-odour and non-flammable for a user-friendly application experience.

  • BBA approved – Silane modified
  • Low odour – Non-flammable
  • Electric pump or gravity feed
  • Ready for use (no mixing necessary)


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Dampcheck Plus 25L
Dampcheck Plus (25 L) £89.99

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Dampcheck Plus (25 L): Advanced Damp-Proofing Fluid

Eliminate dampness efficiently and safely with Dampcheck Plus, a high-performance damp-proofing fluid ready to use straight out of the container. It’s designed to be injected into masonry to form a damp-proof course (DPC), providing a reliable barrier against moisture.

Key Features

  • BBA Approved: Dampcheck Plus comes with the British Board of Agrément (BBA) approval, indicating high quality and performance.
  • Silane Modified: The Silane modification ensures faster injection times and a more comprehensive treatment compared to standard DPC injection fluids.
  • Low Odour & Non-Flammable: It doesn’t cause a lingering “solvent odour” and is non-flammable, contributing to a safer and more comfortable application environment.
  • Convenient Application: It can be applied using an electric pump or by gravity feed (using funnels), providing flexibility in its usage.
  • Ready for Use: No mixing is necessary before use, saving time and ensuring consistency.
  • Multi-Component Formulation: This allows Dampcheck Plus to develop initial water-repellency quickly, while also promoting further diffusion to form a more evenly distributed damp-proof course.

While Dampcheck Plus is effective, you might also consider using No Hydro Damp Proofing Cream or Dryzone damp-proofing cream, which can be installed faster and with less mess. However, regardless of the damp-proofing method, remember to remove and replace any salt-contaminated plaster to fully address the damp issue.

Additional information

Weight 25 kg
Dimensions 46 × 22 × 22 cm


Coverage Calculator


Application For Dampcheck Plus

Preparation – Remove carpets and furnishings from the area to be treated. Paths, patios and glass surfaces must be protected from spillages. Remove timber skirting and save for re-fixing where possible. Remove all plasterwork to a minimum height of 1 metre or 500 mm above the highest evidence of damp/salt contamination.

Choose a line for the insertion of the damp proof course not less than 150 mm above the external ground level and as close to the internal floor level as possible. Holes should be 10 – 14 mm in diameter, depending on the size of the injector nozzles, and spaced at 120 mm to 150 mm centres. Drill either directly into the mortar or down through the brick at an angle of 25° – 45°, terminating in a mortar bed. The precise drilling method should be determined after a trial assessment of a short run of wall. For advice on injecting substrates other than brick walls, please consult the Safeguard guide, “Rising Damp and its Control”.

Application – Insert the injector nozzles into the wall and tighten to seal. Pump the Dampcheck Plus into the wall at a pressure between 10 and 80 psi. Longer injection times at lower pressures are safer and potentially provide more even distribution of the product through the wall. However, dense, impermeable substrates may require higher pressures. Injection times can be reduced by using a Rapiject DPC injection nozzle, available from Safeguard. Any spillages onto patios, paths etc. should be removed immediately using water and detergent.

Finishing – Plug the injection holes with a sand/cement mortar or plastic plugs. Leave wall unplastered for as long as possible to speed up the drying out process. In the case of solid floors we recommend a Drybase SBR, bitumen or epoxy upstand at the base of the wall to a height of 200 – 300 mm; this should be taken out across the floor to at least 50 mm.

Replastering – In order to complete the damp-proof course effectively, re- rendering must be carried out strictly in accordance with the Safeguard re-rendering specification see Dryzone Renderguard Gold datasheet.

Datasheet & Downloads

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