Thanks for watching our video, The Koster Crisis range is available from stock in the UK through Delta Membranes:- www.deltamembranes.com/products/koster-crisin-76-concentrate/ Koster Aquatecnic can supply technical advise on all Koster Products in the UK Tel: 01387 270 252 email: [email protected] Our technical advisers do not earn any commission on products sold and there will be no hard sell. We will just ask you a few questions to work out which of our systems (if any) will be the most suitable for the problem in hand.

We do reccommend a dust mask whenever mixing or applying our cementitious sealing products. Exact PPE requirements will vary by site and COSHH requirements should always be observed. This video was produced in Germany quite a few years ago. We are working on new videos and will strive to make sure all possible PPE requirements for the UK are shown. Thanks for your feedback.

Thank you for your comment. A lot of what you say I would agree with, particularly in regards to exploring other issues rather than assuming rising damp. Also the point about using the correct breathable materials. However I would totally disagree with anyone that says rising damp (wicking moisture) does not exist. It is a scientific fact, and can cause problems for buildings. When other possibilities have been ruled out then the installation of a properly functioning chemical DPC with sufficient active ingredients can make a massive improvement.

kosterwaterproofing definitely. I’d 100% agree with you and your comment please accept my sincere apologies if my comment seemed to undermine what you are doing, I do believe you have the best intentions with this innovative product and I did not expect a reply from you and Im glad you did. Take care I wish you all the best

Thank you for your long and detailed comment. You cover several points, so I will try to briefly answer them although this is a very detailed subject and we would be happy to further discuss this with you if you give us a call 01387 270252. Firstly we would agree that generally waterproofing from the outside (positive side) is best. Hence nearly all new-build basements are waterproofed externally, normally with a combination of barrier waterproofing (Type A) and drainage (Type C) to include a land drain sitting off the toe of the slab. Waterproof Concrete (Type B) is also an option that can be considered. According to BS8102 (2009) and NHBC guidance, a combination of a least two methods out of A B and C should be used if there is any possibility of pressurised water ever coming to bear on the basement walls. With regards to refurbishment of an existing basement, it is unusual to excavate and install waterproofing externally due to reasons of cost and practicality. When waterproofing from the inside only Type A or Type C can be used. The type A as featured in this video has the advantage that it is passive, not relying on a pump and is maintenance free. The main dissadvantages are that it is a rigid system so could crack if there were movement, also condensation can be an issue, but there are ways to deal with this including Koster Restoration plaster. With a Type C (Drainage System), you will require a sump pump to be fitted and maintained annually. The system will also need flushing out from time to time. In case of power cuts, battery back-ups are available, but it all adds cost. The point about the walls collapsing in is not really valid, I have heard this before from people selling cavity drainage systems. When the building was constructed it was always intended for the basement walls to be able to retain water and soil and unless some major structural issue is identified there will not be an issue. In fact the difference in water pressure build up on a slightly leaking wall with a drainage system on the inside is not going to be significantly different than for a fully tanked wall. The wall itself without new waterproofing is still holding back 99% of the water and is not going to be leaking to the extent that it is locally lowering the water table! The structural issue that is more likely to be an issue is the floor. You can't install an internal waterproofing system on a "screed over dirt" floor. So in some old buildings a concrete slab will have to be installed before any waterproofing can be installed. If not then water pressure could cause the floor to heave, cracking the waterproofing system. You would also need to install a new concrete slab in this situation if you were installing a pumped drainage system. To answer your last question, we have been trading in the UK for 19 years and have supplied our mineral system for basement waterproofing to more than 1000 projects over that time. Some have been installed by approved contractors, some by general builders and some by DIYers. In that time we have had about 4 projects where we have encountered problems with excessive salts and about 5 projects where we have had problems with condensation (in all cases involving saturated blockwork). We have never had a problem with a wall collapsing or bowing and we have not had a problem with a floor heaving. We offer a very high level of technical support to our customers and try to design out all risks prior to the materials even arriving on site.

Koster KD2 Blitz

@@kosterwaterproofing From where I will get

@@bimalchannel2411 Where about are you based?

From where I will get this .Can I get it in jaipur

​@@kosterwaterproofing hi I buy this product how to order in indai ??

Thanks for your question. In theory it could work as the Crisin does not need alkalinity in a wall to activate. It does work with all different types of mortar. However with a mud wall, I really don't know. I am pretty sure the crisis would penetrate and hydrophobe/ block the capillaries, but this could possibly cause other problems. Could the area immediately below the injection become saturated and loose it's structural integrity? I think we would need a lot more information before making any kind of proposal. Please feel free to contact us on [email protected]

Well that's an option.

Rana Sahib there are other ways of achieving the same protection, and results

waterseal.in/product/waterseal-quick-seal-cement/

+mike gert Dear Mike, The Crisin system is totally pressureless, it can only enter the wall through capillary action and due to the capillary rod system can not drip down into voids. In the case where the external ground level is higher than the internal floor level then ( as is the case in this example) then a sealing slurry has to be installed to tank the area under the DPC where you could have pressurised water ingress. Our Restoration plaster is capillary inactive, so providing that no water pressure is present (as is the case above ground level) then no liquid water can pass through it, however it remains open to water vapour.

Is this availeble in india 's any city . Thanku

+Howard Gilmour Well the rising damp barrier itself consists of one product, the Crisin 76, the suction angles and capillary rods are really tools for getting the material into the wall in a totally pressureless manner. The suction angles and Crisin cartridges are re-usable, but you do need new capillary rods for each job. Our Koster NB1 is only normally used in situations where the internal floor is lower than the external ground level, In this situation a negative side waterproofing is required to prevent water penetration through the wall below the new horizontal barrier. We do also now produce the Crisin in a cream format, which makes for an easier application in all but the most demanding situations.

Absurdism665 Germans actually - We have asked them to ensure that full PPE is worn in all future video presentations!

Actually a German Video, we have requested that all future productions feature appropriate PPE

Probably because you had leaky gutters, leaking rainwater drains or external ground levels too high

Lol... so are you gonna keep hacking off your plaster and redoing it every time it rains Einstein 🤣🤣

Did you fix it? Please could you tell me how? Thanks

Probably moved elsewhere 😂