Landscape & Urban Design Issue 82 2026 | Seite 32

KEEP WORKING & GET FINISHED- EVEN IN THE RAIN!
CONCRETE & STONEWORK

AS AUTUMN TURNS TO WINTER, GFTK’ S UNIQUE JOINTING IS MORE OUTSTANDING.

KEEP WORKING & GET FINISHED- EVEN IN THE RAIN!
Key application advantages come from the high extended flow characteristics, and as the GftK vdw 850 plus mortar is highly cohesive, it spreads easily across the paving as a wet slurry and effectively selfcompacts into the joints, which displaces any residual water without segregation. Therefore, water left in the joints is no concern. You also don’ t need any extra tooling or finishing. As an additional bonus there is much less wastage.
As autumn progresses and turns to winter, the British weather often decides when you can finish paving jobs. Rain, colder mornings and residual water sitting in the joints, will all stop most jointing products in their tracks, or cause problems and failures later in service. However, the right paving jointing changes that. Here we explain why GftK vdw 850 plus lets you keep working effectively through the wetter winter months. It also avoids the other two major problems that worry owners and contractors about paving jointing- Staining and Cracking.
Why wet and cold weather stops most jointing Most jointing products have strict weather limits for successful application on site. Sadly, these limits are not always made clear or properly observed. For example, cement-based mortars need relatively dry conditions and a dry forecast. They will also often leave a cement haze on the paving, especially in damp conditions. Many 1-part jointing compounds also need warmer, dry weather, so that sufficient evaporation takes place for them to harden properly. Some epoxy grouts also cause problems, as most epoxy resin jointing mortars stain sensitive, permeable stone surfaces, and leave an unsightly resin bloom in damp conditions. As a result, jobs stall, complaints and call-backs increase, contractors wait to get paid, and owners have wait to open or reopen and use their paving.
A resin jointing compound that lets you keep working, even in the rain! GftK vdw 850 plus is a unique 2nd-generation, 2-part epoxy resin jointing compound, designed for you to start and finish on schedule, whatever the forecast. In fact, you can even keep working in the rain when you need to finish.
It can also be applied and hardens at lower temperatures, suitable from around 3 ° C on a rising thermometer. So, you can plan your jointing and repointing works when you are ready, not only when the British weather cooperates.
Finally, clean-up is simple. You just rinse and brush off any residue with a little more water from a fine hose spray.
• For contractors: No Delays, No Staining, Finish & Get Paid on Time!
• For owners: No Delays, No Staining, Back Open & In Service on Time!
No staining, even on sensitive natural stone With many resin jointing products, the resin binder separates from the sand during application, especially with wet slurry application. It then contaminates the paved surface, especially lighter, more permeable and‘ sensitive’ natural stone. Some suppliers call this a“ temporary sheen”. However, it still looks terrible. It also takes a lot of effort to clean, or a long time to weather off.
GftK takes a different approach. Its 2nd-generation, water-dispersed epoxy technology is exclusive to GftK in Germany. The resin precoats specially graded, spherical, alluvial glacial sands. Because of this high internal cohesion, the mix doesn’ t separate or lose resin. That’ s why, with GftK, it is“ the wetter the better” at the wet-slurry stage. By contrast, that much water could cause more separation and loss of performance with other jointing products.
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