Crystoseal is a ready-for-use (merely add water) concentrated, high strength, cement-based waterproofing slurry incorporating active chemical consituents which, when applied, become active in cementitious substrates and by a crystallisation process provides a waterproof seal within the substrate.
Duram Crystoseal is a waterproofing slurry containing 'waterproofing crystals' which 'grow' into concrete surfaces to create a waterproof barrier inside the concrete. Typical applications would be the waterproofing of the inside, i.e. the negative side of the concrete, or concrete filled blockwork retaining walls. Cystroseal is an excellent enhancement to other Duram waterproofing systems for concrete. Crystoseal often 'saves the day' when conventional membranes can no longer be applied. Crystoseal is a powder and is mixed with water and easily applied as a slurry by roller or brush.
Crystoseal waterproofs sound concrete or cement surfaces against water ingress, dampness, ground water and hydrostatic pressure.
Crystoseal is suitable for waterproofing both the positive and negative sides of the substrate. It consists of a blend of cements, graded quartz and active chemical constituents and gives a render-like appearance.
Crystoseal works by the conversion of free lime in the concrete to insoluble calcium compunds. These seal against capillary ingress of water. Compounds within Crystoseal penetrate in to the substrate where they in turn ‘crystallise’ on contact with moisture and create a waterproof barrier.
- Crystoseal has application where conventional membranes would be unsuitable such as:
- On damp cementitious surfaces.
- There is only access to the negative side of the structure, i.e. inside surface of a retaining wall or outside of water retaining structures.
- Easy to use. Simply add water, mix and apply by brush or roller.