Dryzone Damp-proofing Cream
Launched in 2000, Dryzone damp-proofing cream has caused a revolution in the treatment of rising damp.
Dryzone now outsells our traditional chemical injection damp-proofing treatments and is the best-selling rising damp treatment on the UK market.
Application
The Dryzone damp-proofing cream is introduced into a series of 12mm holes drilled into the mortar course by means of a simple applicator gun. Once the Dryzone is installed, it diffuses before curing to form a water-repellent resin. This prevents the damp from rising up the wall.
Dryzone has a number advantages over conventional chemical injection damp-proofing systems for both the contractor and the householder:
- Quick to install
Up to 3 times faster than standard damp-proofing injection systems.
- Simple to install
Less scope for operator error
- Concentrated formulation
Eliminates the need to introduce large volumes of liquid carrier into the wall. Dryzone is over four times stronger than many competing products.
- Low hazard
Non-caustic, non-flammable, not injected under pressure.
- Solvent-free formulation
Does not contain white spirit or iso-paraffins.
- Spillage & mess virtually eliminated
No problems with damp-proofing fluid leaking into neighboring rooms or properties.
- No electric DPC pump required
Can be used in situations where power is not available.
- Effective
Independent tests demonstrate that Dryzone provides a more effective barrier to rising damp than competing products.
Full instructions for installing Dryzone damp-proofing cream can be found in the Dryzone datasheet which can be downloaded from this page. For those requiring more detail, a 19-page guide to "Rising Damp and its Control" can also be downloaded.
The Importance of Full-Strength Damp-Proofing
Dryzone damp-proofing cream has been formulated to contain a high concentration of active ingredient (over 60% silicone in the form of active silanes/siloxanes). This makes Dryzone over four times stronger than typical competing products which contain as little as 10 or 15% silicone. Dryzone's high level of active ingredient ensures that:
- The active ingredient (silicone) spreads adequately between injection holes - ensuring that there are no significant gaps in the treatment through which damp can rise.
- Enough active ingredient (silicone) is introduced to the wall to give a comparable level of treatment to that provided by the traditional silicone injection systems (approx. 100g of silicone per metre of 9" wall). Silicone treatments carried out at this level since the 1950s have been proven to provide long-term protection against rising damp.
Further information about the development and testing of Dryzone damp-proofing cream can be found on the Dryzone website - www.dryzone.eu.
Replastering
As with all remedial damp-proofing systems, it will be necessary to remove and replace any salt-contaminated plaster. A 3:1 sand-cement render incorporating Renderguard Gold is usually used for this purpose. Where the use of a hard sand/cement render is not desirable, another option is to cover the wall using Oldroyd P Plaster Membrane. This allows a wider range of plasters to be used.
Dryzone damp-proofing cream can be specified under the following clause:
Dryzone damp-proofing cream is featured in the following case studies:
 BBA Approved
Dryzone damp-proofing cream is covered by BBA certificate number 97/3363.
Safeguard currently offer the following RIBA-Approved CPD Seminars free-of-charge to architects and specifiers on the UK mainland:
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Installing Dryzone 
