NEWS ARTICLE ARCHIVESUltracure™ damp prevention injection cream by Lectros![]() Ultracure™ is a unique silicone emulsion cream for injection into damp masonry for the control of rising dampness. Ultracure™ can be used in all types of masonry without the use of high pressure equipment. The cream is delivered by hand pressure only, from a simple displacement pump with an injector lance into a series of holes drilled into the mortar course. From here it migrates rapidly into the damp masonry pores where the injection cream reverts to a liquid phase and polysiloxanes are formed in-situ. During the curing period a low molecular-weight silane vapour is also produced giving excellent migration through the wall. Curing of the DPC starts immediately with the final cure taking 2 - 6 weeks depending on wall thickness. Extensive field experience with this technology demonstrated that Ultracure™ will perform as well as any conventional liquid injection system against rising damp. The Ultracure™ installation method may be described as "volume specific." Holes are drilled into the mortar around 20mm shorter than the wall thickness. Spacing between the holes is dependent on the hole diameter, i.e. 10mm diameter - 100mm apart, 12mm diameter - 120mm apart. The Ultracure™ pump nozzle is inserted the full depth of the hole and is withdrawn as the cream is being dispensed to completely fill the holes ensuring the quantity dispensed into the masonry complies with the volume of masonry being treated. The thixotropic material, which diffuses slowly through the damp mortar and surrounding masonry, will not flow freely from the horizontally drilled holes. Ultracure™ Installation Instructions advocate compliance with local standards, if available, or with the British Standard 'Code of Practice for Installation of Chemical Damp Proof Courses' BS 6576 (1985). In particular, the inserted DPC should be below the level of timber floors unless prevented by structural considerations (in which case other measures may well be required to isolate joists etc. from damp walls below the DPC). Ultracure™ is designed to control rising damp but walls can remain damp after DPC installation where they are severely contaminated with hygroscopic salts. Special measures may be required to provide long-term control of dampness in such walls. Ultracure™ will not dissipate or migrate into dry masonry and its effectiveness is subject to a correct "rising damp" diagnosis by the installation contractor which can be confirmed by the speed of diffusion. Wykamol Ultracure™ is guaranteed for Twenty Years when installed according to the manufacturer's instructions by an authorized installation contractor. |
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