Prep for Outdoor Furniture

Choosing the Right Material for Outdoor Furniture
To avoid distortion caused by water getting to the substrate it’s advisable to use a substrate that is suitable for use outdoors, marine ply or cement board are good options.

You can also microcement over existing outdoor surfaces like granite and quartz. For these you will need to use Primer TAC as they are non-absorbent.

Well Consolidated
Make sure the boards are well glued and screwed in place to eliminate any chance of movement. Use a suitable adhesive between the joins, leave to dry overnight and razor scrape/sand the excess off once set. Make sure silicone is not left on the surface to be microcemented. Products that you can use include: adhesive sealant or polyurethane wood glue. Countersink screw holes.

Completely Flat
Boards must be flush with one another, ridges will highlight in the microcement. Microcement can’t be used to level surfaces – it must be applied as thinly as the grain. The surface must be completely flat. As with all surfaces, microcement will follow the contours of the substrate it is going onto.

Fill the Joins and Screw holes with Microne Base
Fill the joins and screw holes with Microne Base or Wood Filler so that they are flush with the boards.

IMPORTANT: Leave until dry, minimum 24 hours. If the Microne Base/Wood Filler isn’t completely dry, the lines & holes may ghost through the microcement and be visible in the finish.

NATURAL TIMBER is likely to warp so is not suitable for use with Microcement, if it is in place already, it will need to be over-boarded with a composite timber like Marine Plywood.