vdw815 Sanded Epoxy Paving Grout
For natural stone, brick and manufactured pavers on patios, paths, driveways, commercial areas and other hard landscaped surfaces with a minimum 1/8″ joints and a minimum depth of 3/4″.
- • Fast, durable and cost effective
• Easily flow applied
• Low temperature application
• Can be applied on wet/damp surfaces
• Clean, stain free surfaces
• Optimum strength correlation
• Street sweeper resistant
• Abrasion resistant
• Frost and de-icing salt resistant
• No weeds or boring insects
• Environmentally friendly
A stable load-bearing sub-straight and the paving installation must be correctly designed for the anticipated traffic loads. Vdw 815 is a paving joint mortar and should not be used to compensate for any settlement or flaws of the substructure. The vdw 815 can be installed on damp / wet pavers and in high humidity conditions.
In pedestrian areas: It is acceptable to lay the pavers on a fully compacted (minimum 95% compaction) and stable aggregate sand or gravel bed. The pavers should be laid as stated in the BSI (Building Stone Institute) Recommended Best Practices guide.
In vehicular traffic areas: The pavers should be laid on a concrete or mortar bed designed for the anticipated traffic loads. The pavers should be laid as stated in the BSI (Building Stone Institute) Recommended Best Practices guide.
The ambient, substrate and material temperatures should be min. 44,6 °F to max. 77 °F.
Tools: A compulsory forced action mixer or a drill with twin spherical mixing paddles for smaller projects. Water supply, a hose with spray nozzle, a squeegee and a coconut fibre brush.
Test area: On some reconstituted or sensitive natural stone paving, the vdw 800 binder contact can make the stone appear darker or to have a ‘wet look’. These effects are not defects in the product or shortcomings in the execution of the work. In general the product should be tested first!
Preparation / Pre-wetting: Clean the surface of all dirt, cement residues, organic materials or any other contaminants, including cleaning out all of the joints to the required depth. Fully saturate the paved surface before starting the application and ensure this condition is maintained throughout the work. The amount of wetting required is related directly to the type and porosity of paving and the site conditions i.e. wind, direct sunlight and temperature etc.
Mixing: Mix the vdw 815 resin coated aggregate (component A) materials together, and then add the vdw 815 liquid hardener (component B) from the bottle in the bucket. Then add a quantity of clean water equal to double the quantity of the liquid hardener (use the empty component B bottle as a measure), and mix to achieve a fully homogeneous consistency. Mixing time: min. 5 minutes.
Filling the joints: Spread the vdw 815 mortar across the
pre-wetted paving surface using the rubber squeegee and work thoroughly into the joints where it self-compacts. We recommend working from the highest to the lowest points. Brushing off: After approx. 15 – 20 minutes the vdw 815 mortar should have achieved a semi-dry consistency. At this stage, remove any excess mortar completely using a damp coconut fibre brush. Frequently clean this brush in water and then rinse the surface by spraying lightly with water from a hose at a distance of about 0.98 inch. Avoid washing material out of the joints. Be careful to clean the paved surface towards areas not yet jointed and do not allow any water containing residues to pond, stand, dry out or run-off over completed areas. Do not brush any residual, cured mortar into any unfilled joints. Cordon off the freshly vdw 815 jointed areas for a period of at least 12 hours after which the areas can be walked over. Protect the freshly laid area from rain or waterflow for a period of at least 12 hours (do not place the covers directly onto the paving: ensure that the air can circulate freely over the surface). The area can be fully opened for use by vehicular traffic after 7 days. Tools can be cleaned with water whilst the mortar is fresh. Chamfered edges must be brushed free of the vdw 815 mortar. Cured mortar can only be removed mechanically.
Consumption: The table below refers to areas of natural stone sets with cropped edges and has been compiled from our own experience. The natural shape of setts and different designs or techniques, may result in variations. There is no allowance for any loss or wastage, etc. If in doubt, always determine actual consumption on a test area. The joint depth in these examples is 1.25″.
Natural (light sand)
Basalt (dark gray)