GftK vdw 815 Natural

GftK vdw 815 Natural

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Pair Natural GftK vdw 815 Patio Pointing Mortar with mid-toned natural stone and porcelain paving for a high quality and even finish. Apply the sweep in jointing compound as a wet slurry with water for a high-quality and durable finish. GftK vdw 815 Natural brush in patio grout is resistant to jet-washing, frost and abrasion for a high-performance result. Before buying, we recommend that all customers read our Product Guide.
Product TypePointing
PackagingPlastic outer tub with hardener in separate plastic bottle
Material Type2 part - Sand grains coated in resin with separate hardener
Country Of OriginGermany
Application MethodSqueegee
Application Surface Temperature5 - 25˚C
CoverageRefer to product calculator
Curing Time24 hours @ 20˚C
Storage & Shelf Life1 year in original, unopened, sealed and undamaged packaging, kept dry and frost-free. Do not store over 20 °C.
PPE RequirementsAvoid contact with eyes and skin. Wear latex gloves and protective clothing during application.
Recommended ForRiven Natural Stone, Natural Stone Setts
Working Time20 Minutes @ 20˚C
Equipment RequiredBuckets, paddle mixer, water, rubber squeegee, coconut broom, trowel, pointing tool, adjustable hose attachment
Joint WidthMinimum 3mm
Pointing PreparationPrior to grouting the installation should be dry and the open grout joints clean, dry and free of residues. Porous or textured tiles/slabs may require sealing before grouting with a suitable impregnating sealer. If in doubt trial an inconspicuous area to check for staining and correct colour before commencing. Wet the Paving. Absolutely soak the area to be jointed with water using a hose. The paving must be saturated before starting and remain soaked throughout the application process - in fact, the wetter the better. Do not shortcut this process, particularly if working with absorbent or sensitive materials such as Sawn Sandstone, Granite and many Limestone types. Particularly sensitive stone will need sealing, preferably before laying.
MixingMixing the joint mortar: Pre-mix the aggregate, then add the binder and mix with the drill and spherical paddle mixers for approx. 3 minutes until smooth and homogeneous. Do not mix partial quantities of the product. No water should be added to the mix.
Application ProcessFilling the joints: Apply immediately after mixing by pouring directly onto the pre-wetted surface. Work the mortar thoroughly into the joints using a hard rubber squeegee, whilst spraying lightly with water from a hose. The surface should be kept constantly wet during application. We recommend working from the highest to the lowest points. Brushing off and cleaning: Remove any excess mortar residue immediately from the area by spraying lightly with water from a hose. Be careful to clean the paved surface towards areas not yet jointed. Remove any final residual mortar with a damp coconut fibre brush. Do not brush this residual mortar into any unfilled joints. It is important to make sure that no water or residual mortar remains on the surface. Refer to the product guide for further information.
Cleaning ToolsWash all tools frequently to avoid material bonding to them
Cleaning During ApplicationAlways fully wash off the oil residue until you can no longer see a film on the water, ensure any material is swept of and no left to set on the paving.


Can withstand a jet wash, be careful not to get too close which could damaged the joint

Please see our FAQs for more information.

Delivery Cost

£10 standard courier charge up to 25kg

£20 standard courier charge up to 50kg

£35 per micro pallet charge up to 250kg per pallet

£50 per pallet charge up to 1000kg per pallet

Delivery Times

Choose your delivery date when checking out. Timed slots are not available.

Free* next day delivery available to certain postcodes. (*T&C's apply)


Cancel up to 14 days from the date of delivery. Products to be returned in the same condition and packaging. No returns for bespoke or pre-sealed items.

You will be responsible for returning the material to London Stone. Collection can be made by us but this will incur a collection cost.

Installation tools

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