Sika® Tite Undertile

12 months from date of manufacture in original, sealed containers, if the storage conditions are met.

Store in dry, weatherproof environment, protected from direct sunlight at temperatures between +5˚C and +25˚C

Allow a minimum of 12 hours curing prior to applying finished covering, and a minimum of 72 hours to cure before flood testing. Allow longer in adverse weather conditions.

FLOORS: Apply two coats to achieve a minimum dry film thickness of 1.0mm. Application coverage rate of 1L/m2 per coat.
WALLS: Apply two coats to achieve a minimum dry film thickness of 0.5mm. Application coverage rate of 0.5L/m2 per coat.
Coverage may vary depending on substrate and application method.

SUBSTRATE PREPARATION

All surfaces to be waterproofed must be firm, clean, dry, structurally sound and smooth. All grease, oil, wax, curing compounds, dust, loose material, laitance and other contaminants must be removed. All projections and rough spots should be dressed off to achieve a level surface. The substrate surface must be continuous and not pond water. 

Concrete

Allow at least 28 days for the concrete to cure. Concrete should be left with an open surface – standard wood float or broom finish. All traces of curing compounds or sealers should be removed prior to application. Old concrete must be thoroughly cleaned and washed and allowed to dry. The surface should be even unless falls are incorporated where required, imperfections to be repaired with a suitable Sika^® Mono- Top repair mortar.

Sand / Cement Screeds and Renders

The screeds and / or renders must conform to the appropriate standard and should be left with a wood float finish and left to cure for at least cure for 7 days.

Building Boards

Water resistant plasterboard, fibrous cement sheeting, marine ply must be solidly fixed in accordance with the manufacturer's instructions specifically for tiling. The area must be primed with ECO SYSTEMS^® Eco Prime WB, particularly where a jointing compound has been used.

Particleboard

Particleboard must be fixed in accordance with the manufacturer's instructions specifically for tiling and free from any movement. Secure floor with additional fixings and wedges, sand any surface contamination after initial preparation. The area must be primed with ECO SYSTEMS^® Prep 'N' Prime.

Existing Tiles

Any existing tiles must be well bonded and be free from any sealers or coatings. It may be necessary to mechanically prepare the area. Dense, low absorbent surfaces must be primed with ECO SYSTEMS^® Prep 'N' Prime.

Joint Treatment

Sika® SealTape is a reinforcement tape with a woven bonding mesh and an expansion zone the middle to be used to reinforce all changes of direction. It comes as performed corners, wall flashings, floor flashings and rolls. It is 0.6 mm thick and coloured yellow.

TILING

Sika® Tite Undertile is compatible with a range of Sika® polymer modified tile adhesives, Contact Sika Technical Service for further advice.

Clean tools and equipment with clean water while the material is still wet. Cured coating can only be removed mechanically.