Using a brush or roller, liberally apply the first coat to all wall, floor surfaces & structural joints, pipe inlets & gully areas. Once the first coat is dry, apply a second coat at the above rate and allow to dry. Where movement is likely to create wider gaps or joints (>3mm), cut reinforcing tape to size and press the pre-cut tape across all joints whilst the first coat of OB1® Waterproof Tanking Solution is still wet, smoothing down the tape as you go, forcing out any trapped air and repeat this procedure where the pipe entry gaskets are being fitted.
When all tapes & gaskets are securely in place apply a second coat at 0.5kg per m² across the full area of the floor and walls (including over the taped joints & inlets) and allow to dry. Allow 2 hours before tiling, a full 24 hours may be required for unheated areas.