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PermaSEAL PRO DPC Injection Cream - 310ml

80% of 100
£12.00 Ex VAT
£14.40 Inc VAT
Treat rising damp with our simple-to-install chemical injection cream! Benefit from the highest possible concentration of active ingredients installed with minimal mess.

High Strength DPC Injection Cream - 310ml cartridge 

PermaSEAL PRO DPC Injection cream provides permanent protection against rising damp. Our high strength cream is specially formulated so you can efficiently create a new DPC in walls of various types, including substrates with high saturation levels.

With deep penetration and minimal mess, our high-performance DPC cream forms a reliable horizontal barrier to block water and ground salts, stopping rising damp for good.

Looking for a DPC Injection Kit? Enjoy ultimate convenience and save money when buying in bulk.

Benefits of DPC Cream Injection

Injected chemical DPCs revolutionised the industry over 50 years ago as an effective alternative to installing a new physical DPC. Since then, the focus has been moving on from conventional high-pressure liquid injection to revolutionary DPC creams - quick, reliable and cost effective alternatives which offer much safer and effective treatment of rising damp.

Since the introduction of the first DPC cream technology over two decades ago, further developments in silicone technology have improved the performance of DPC creams and the experience for users. We’re proud of our PermaSEAL PRO DPC Injection Cream and how it brings together ease of installation with proven performance you can trust.

  • High strength - containing 80% active ingredients, our DPC Injection Cream contains the highest possible amount of silane.
  • Deep penetration - the cream is specially formulated to revert to a liquid, allowing it to penetrate deeper into the substrate.
  • Permanent protection - once cured, the chemical DPC will block rising damp for as long as the mortar course remains undisturbed.
  • Easy to install with minimal mess and room for error - the cream consistency and low pressure injection reduces the chance of spillage and helps ensure correct installation.
  • Saves money on energy bills - by effectively treating rising damp, you reduce the significant heat loss that occurs through damp walls.

Installing PermaSEAL PRO DPC Injection Cream

PermaSEAL PRO Injection Cream is quick and easy to install, with minimal mess.

  1. Locate a mortar joint at least 150mm above external ground level. In case of solid floors, insert the damp proof course as close to the internal floor level as possible. The internal and external DPC levels must be at the same height.
  2. Once you’ve selected the mortar joint, drill 12mm diameter holes horizontally in the mortar bed at centres no greater than 120mm. The depth of the hole required should be 20mm less than the wall thickness e.g. if the wall is 110mm thick then drill a 12mm hole to a depth of 90mm.
  3. Vacuum the dust from the holes.
  4. Prepare your PermaSEAL PRO DPC Cartridge by trimming the top of the tube to allow the cream to flow. Screw on the nozzle. If required, an extension tube should be added. Load the cartridge into a standard mastic-style applicator.
  5. Inject the DPC Cream into each hole, put the nozzle into the back of the hole and inject slowly. Withdraw the nozzle as the cream fills the hole. Stop approximately 10mm from the outside edge of the hole.
  6. As soon as possible, plug the remaining 10mm hole with mortar or insert a DPC Injection Plug. Closing off the surface of the hole will aid the dissipation of the actives along the mortar course.

What happens next:

The Injection Cream penetrates deep into the mortar course around the drill hole. As PermaSEAL PRO penetrates the substrate, it carries the high level of active ingredients into the mortar. These silanes line the capillaries in the substrate and cure to create a water-repellent barrier that stops rising damp.

Refer to the datasheet for more detailed installation instructions and guidance. You can also read our guide to installing damp proofing cream to treat rising damp.

PermaSEAL - Complete Solutions. Made Possible.

Our PermaSEAL PRO DPC Cream range is the go-to solution for rising damp. With various sized cartridges to 5 litre tubs, we have an option to meet your needs and provide ultimate convenience. If you have any questions about chemical injection, our DPC creams or damp issues in general call our technical helpline today.

Further reading

For everything you need to know read our complete guide to treating rising damp. After installing your chemical DPC, you’ll need to replaster - find out more in our guide to re-rendering after DPC installation.

See our rising damp treatments or browse our full range of damp proofing creams.


  • Highly effective protection against rising damp
  • Highest possible concentration of active ingredient (80% silane)
  • Efficient installation - significantly quicker installation when compared with high pressure DPC injection methods
  • Simple installation with minimal mess - low pressure injection ensures correct dosage and less chance of spillage
  • Solvent-free formulation
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