SikaCeram® Sealing Membrane A

VOC emission classification GEV-Emicode EC 1^PLUS

CE Marking and Declaration of Performance to ETA-20/0677, based on ETAG022 Part 2 - Watertight covering kit for wet room floors and walls based on flexible sheets

AS 4858 -2004 Wet area membranes

AS 4654.1-2012 Above ground external waterproofing membranes

2 years

Product must be horizontally stored in original, unopened and undamaged sealed packaging dry conditions at temperatures between +5 °C and +35 °C. Always refer to packaging.

Class III elongation

~0,5 mm

285 g/m² (± 20 g/m²)

Waterproofing of wet areas, balconies and terraces

Submerged Applications, Pools Spas, and Saunas Seek written Sika Specification for submerged applications such as pools or spas.

Note: Refer to all relevant product datasheets for product limitations and instructions prior to use.

Assessment category 3: Crack width 1,5 mm

B2

Resistant to many chemicals. Contact Sika Technical Services for specific information.

≥ 450 hours

≥ 1,5 bar

-30 °C min. / +90 °C max.

The adhesive used to bond the SikaCeram® Sealing Membrane A system: SikaTile 440 Opti-Cure mixed neat with Lanko Latex 751 Additive.

Mixing Ratio:

▪ Do not dilute the Lanko latex 751 - use neat.

Trowel Application 

• Trowel size 2.6mm V notched trowel for board substrates
• Trowel size 3.5mm V notched trowel for concrete and screed susbstrates

Pot Life: 1.5 hours (approx)

Mixing Instructions for bonding the SikaCeram® Sealing Membrane A:

1. Add the Lanko Latex 751 additive to a clean mixing bucket. Slowly add the SikaTile 440 Opti-Cure to the bucket while stirring with an electric mixing drill.
2. Mix the adhesive to a smooth lump free mixture and allow the mixture to stand or "slake" for 3 minutes.
3. Restir the adhesive for an additional 1 minute then the adhesive can be used.
4. The adhesive may need restirring during its pot life, do not add any additional Lanko latex 751.

+5 °C min. / +35 °C max

+5 °C min. / +35 °C max

For external application in exposed hot sun cover with screed or tile as soon as applicable or cover with a white corflute protection board or similar immediately after installation

Tenting the application area may be required in hot direct sun to avoid high substrate temperatures.

• Scissors

• Razor knife

• Plastering trowel

The waterproofing membrane is installed by applying it with SikaCeram® Sealing Fix adhesive or using SikaCeram® C2S1 tile adhesive for decoupling.

Refer to the individual Product Data Sheets for substrate preparation.

Refer to Mixing Ratio section in this document for Adhesive details.

Application of floor wall junctions, changes of plane and corners using Sika SealTape F

Apply the adhesive to the substrate junctions with a 100mm roller or v notched trowel. While the adhesive is wet embed the Sika SealTape F in position. 

Apply addition adhesive to overlap the joins and smooth out with a plastic scraper

Application of Pipe Penetrations - Sika SealTape F for PVC fittings, apply a single coat of SikaFloor-14 Prep n Prime and allow to dry.

For Metal Fittings, lightly abrade with steel wool and then clean residue with Isopropyl Alcohol and allow to dry.

Then apply a single coat of SIkaFloor-14 Prep n Prime and allow to dry.

Apply the adhesive around the pipe penetration with a 100mm roller or a V notched trowel and embed the Sika SealTape F around pipe penetrations and flatten out with a plastic scrapper.

Application of the SikaCeram® Sealing Membrane A

Measure and cut sheet as required with the Utility Knife or Scissors Apply a layer of the adhesive with a roller or V notched trowel to an area that can be covered prior to adhesive skinning (approx 1m2) and embed the SikaCeram® Sealing Membrane A into the adhesive. Immediately fatten the sheet with a plastic scraper. Repeat process by gradually rolling and apply adhesive as required.

All sheet joins are to be overlapped by a minimum 50mm and ensure the adhesive covers all sheet joins for a watertight finish. Waterstop Angles, and Terminations Penetration can be terminated onto the pipe penetrations.

Prime PVC pipes with SikaFloor-14 Prep n Prime and allow to dry. Apply the adhesive to the primer and install the Sika SealTape F. Control Leak flanges shall be primed with SikaFloor-14 Prep n Prime and allowed to dry prior to bonding sheet terminations or Sika SealTape F with the adhesive Waterstop Angles shall be primed with SikaFloor-14 Prep n Prime and allowed to dry. Bond the Sika SealTape F to Waterstop angles with the adhesive as needed.

Application Notes:

• Ensure all sheet joins and tapes etc are overlapped by 50mm.
• Ensure all sheet joins and over laps are well bonded. If required the adhesive can be skimmed over sheet joins to protect sheet edges.