GftK's vdw 815+ for grouting Porcelain Paving in Southport, UK
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Grouting external porcelain tiles, which must always be a minimum 20mm thick, is a specialist subject due to the nature of the material, which is extremely dense and almost impervious, which prevents many paving mortars and gouts from bonding to the sides of the joints, which can accelerate cracking due to thermal movement. Additionally the joints are generally narrow from 3mm to 6mm, never much more or it reduces the visual appeal or porcelain paving, but unfortunately this also causes issues for many external grouting materials. This includes fully compacting into the joints, developing the necessary strengths and correlation (tensile to compressive) of strengths, module of elasticity (to accommodate movement) and retain sufficient bond to the sides. GftK's vdw 815 Paving Joint Mortar is a unique, 2-component, epoxy resin based, material that is designed for the durable sealing of these narrow joints (generally from min. 3mm to max. 8mm), making it ideal for grouting porcelain paving with these joint widths. However, it is also important to consider the potential variations in porcelain tile dimensions, and the practical aspects of laying to the right tolerances to maintain line and level, as well as the joint lines. Therefore the normally recommended spacing for larger format external porcelain tiles is 5-8mm to avoid edge damage and joint width variation issues.
When grouting newly laid porcelain after the tiles are firmly bonded in position and strong enough to walk on, the surface must always be rinsed clean and then dried. This is also an opportune time to protect the pristine surface against future staining and residues from building works and then normal 'patio surface' exposures to the spillages of potentially all the ingredients of a good BBQ and Garden Parties, making the surfaces easier to clean and maintain. This is done very easily at this time by applying NCC Porcelain Tile Protector and allowing this to dry, prior to the grouting operation, which this treatment also facilitates, making final cleaning an easy task too!
As the video shows, mix the 2-components of the GftK vdw 815+ together thoroughly until the mix is fully homogeneous, which should be for around 3 minutes. Pre-wet the paving and then pour out the vdw 815+ as shown, using more water to help it flow into the joints, you can't use too much water at this time. Continue moving the mortar with a rubber squeegee as it effectively self-compacts into the joints. Once filed leave for a few minutes and then use a wet coconut brush to remove any excess, using more water in a fine wide spray as required to remove any residual material and clean the surface. Job done!
This video shows GftK's vdw 815plus application on new porcelain paving, but GftK's vdw 815plus is also equally ideal for use in narrow joints from 3mm wide and 20mm deep, on new natural stone paving, and for paving repointing projects. This advanced material is also referenced in another video application guide, showing this product and the application of GftK vdw 850plus, based on the same stat-of the-art resin technology in the NCC Streetscape KZread Channel here: • You can't use Too Much...
For full information, product datasheet, application guidelines, and more project references and case studies etc., visit the GftK vdw 815plus Product Page of our website here: nccstreetscape.co.uk/Shop/pro...
For more information on all aspects of external porcelain tile paving in the UK, please visit: nccstreetscape.co.uk/type-of-...
You can purchase these advanced materials in our online shop here: nccstreetscape.co.uk/Shop/pro...
GftK Paving Jointing Mortars are produced by GftK near Cologne in Germany, and they are exclusively distributed in the UK and Ireland by NCC Streetscape. For any additional advice and assistance on your paving projects, please call our paving specialists on 01257 266696, plus there is a lot of additional porcelain and natural stone paving jointing information on our website: www.nccstreetscape.co.uk/inde...
GftK Paving Jointing Mortars are produced by GftK near Cologne in Germany, and they are exclusively distributed in the UK and Ireland by NCC Streetscape.
Пікірлер: 22
Good 👍
@nccstreetscapevideo4554
2 жыл бұрын
Thank you! Cheers!
Does this grout let any water through the joint or does it become water tight?
@nccstreetscapevideo4554
2 жыл бұрын
This is a completely different technology to the porous brush-in products wrongly described as 'resins - This unique technology is permeable only to the degree required by the German Ground Water protection Laws, yet it can also take frequent jet washing - Check out the website for more information here nccstreetscape.co.uk/paving-jointing/gftk-paving-joint-technology.html
Watch so many people that shows you how to grout - and as always like this video the mix is way to weak. It should always be a stiff smooth paste and not sloppy. Grout contracts and if the mixture is to weak ( i.e sloppy) in a short period of time it will break up leaving it to the elements and water ingress. The grout needs to be firm and pushed into the joints - yes more hard work but it will last a lifetime if done properly
@nccstreetscapevideo4554
2 жыл бұрын
Alan agreed for many cement based grouts where the water to cement ratio is critical - BUT the vdw 815 and 850 are 2-component, reaction hardening, epoxy resin based materials. This is a completely different technology whereby this flowable consistence that is ideal for self-compacting into the joints is also ideal for shrinkage-free hardening and curing, even at lower temperatures and in wet conditions. Check out the website for more information here nccstreetscape.co.uk/paving-jointing/gftk-paving-joint-technology.html
@alantumelty5481
2 жыл бұрын
@@nccstreetscapevideo4554 ah rightio. thanks for clarifying that - good to know.
@nccstreetscapevideo4554
2 жыл бұрын
@@alantumelty5481 No problem - if you need more information and references / case studies there are loads on the website from all around the UK for almost 15 years now - slowly catching on and once tried you wont go back! If you want to try the materials give us a call and we will see what we can do to assist - Cheers
@alantumelty5481
2 жыл бұрын
@@nccstreetscapevideo4554 Retired from it now which is why I'd not heard of it but thanks and good to know. Cheers
Is this similar to easy joint pro?
@nccstreetscapevideo4554
Жыл бұрын
Hi Neil sorry missed your comment - off with the dreaded covid! No this is completely different technology to Easyjoint or any other products - you can checkout more details on our website here: nccstreetscape.co.uk/paving-jointing/gftk-paving-joint-technology.html give us a call in the office if yu need anymore information or advice 01257 266696 Hope this helps
what’s the difference between this and standard grout? are the joints still porous or will water sit on top? thanks
@nccstreetscapevideo4554
2 жыл бұрын
Hi Joey - sorry for slight delay in reply. This is a completely different technology based on 2-component epoxy resin that is pre-coated and graded alluvial quartz sand. External porcelain tiles are designed to be laid to fall to suitable drainage in the same way as all external paving and so water should never sit on any paving unless drains ae blocked. There is some confusion over permeability in paving as technically all cement based concrete and mortar bedding mortars are permeable unless they are specifically designed to be waterproof, it is really just a question of degree. The GftK vdw 815+ and vdw 850+ joint mortars are permeable to allow water from below to escape through evaporation, as much as for water to drain from above, again it is a question of degree and this degree of permeability is a distinct advantage for faster installation with earlier grouting, and more effective and ecological performance in service. - There is a lot more information about all aspects of this subject on our website - You can find this on the Paving Jointing and Paving Jointing FAQS pages here: nccstreetscape.co.uk/paving-jointing.html - Also there is more background specifically on and relating to external porcelain tiles, porcelain paving and the issues of pointing / grouting / jointing on our Porcelain Paving & FAQS pages here: nccstreetscape.co.uk/type-of-paving-unit/porcelain-paving.html - If you would like more specific information and assistance for your projects you can email us to: technical@nccstreetscape.co.uk - Or call us when back in the office on Tuesday: 01257 266696 Hope this helps for now?
@johne8907
2 жыл бұрын
@@nccstreetscapevideo4554 you've won the most proffessional answer award 👍👍👍
@ivegotaporscheandalambo3318
2 жыл бұрын
This isn't good practice, it's quick and dare I say lazy. You should always use exterior porcelain grout like Nexus or Fuga pave CH. You want a sealed, watertight grout that prevents water ingress below and hence frost lifting flags, even if they are slurry backed .
@nccstreetscapevideo4554
2 жыл бұрын
@@ivegotaporscheandalambo3318 Hi well that is an interesting combination of several misunderstandings and myths in the UK paving industry - Firstly confusing high performance 2-part jointing mortars with simple-part, vacuum packed, bag in a tub brush-ins that are totally unsuitable for porcelain and any long term paving jointing, and not just because it is permeable. There is a lot more information and support for contractors and specifiers alike with detailed technical explanations on our website here: nccstreetscape.co.uk/type-of-paving-unit/porcelain-paving-faqs.html Also you can reference the excellent independent PavingExpert website thoughts on this myths of permeable jointing with slabs and porcelain paving and frost damage in the UK here: www.pavingexpert.com/faq_permeable_mortars_01 If you have any further questions or would indeed like to fully understand all aspects of this please email our team at: technical@nccstreetscape.co.uk and we will be glad to assist you.
@ivegotaporscheandalambo3318
2 жыл бұрын
@@nccstreetscapevideo4554 I've used them all, they aren't high performance, sales pitch. 2 parts are ok, but not for porcelain, big bug bear is they green up and black up ( from horse's mouth). Smooth exterior porcelain grout only ie Fuga pave or Nexus. Do it once do it right. I call other ways lazy landscaping
Does this reduce the R value of the tiles.?