APPLICATION INFORMATION

Fresh mortar density ~1.65 kg/L (Part A+B mixed, +27 °C) (EN ISO 2811-1) Consumption Layer Product Consumption Base coat SikaTop®-109 Seal IN ~1 kg/m2 Top coat SikaTop®-109 Seal IN ~1.2 kg/m2 Note: The consumption will vary depending on application area, substrate type, substrate roughness, surface profile, absorption of the surface and thickness required. Ambient air temperature +10 °C min. / +40 °C max. Mixing ratio Part A : Part B = 1 : 1.5 (by weight) Substrate temperature +10 °C min. / +40 °C max. Pot life ~40 minutes (100 g mass, +27 °C) Waiting time / Overcoating Base layer Overcoating layer Waiting time SikaTop®-109 Seal IN SikaTop®-109 Seal IN ~4-6 hours SikaTop®-109 Seal IN Screed / Plaster ~5-7 days Note: Above values are at +30 °C and 50 % relative humidity. Times are approximate and will be affected by changing ambient conditions particularly temperature and relative humidity.

BASIS OF PRODUCT DATA All technical data stated in this Product Data Sheet are based on laboratory tests. Actual measured data may vary due to circumstances beyond our control. FURTHER DOCUMENTS Sika Method Statement : SikaTop®-109 Seal IN ECOLOGY, HEALTH AND SAFETY User must read the most recent corresponding Safety Data Sheets (SDS) before using any products. The SDS provides information and advice on the safe handling, storage and disposal of chemical products and contains physical, ecological, toxicological and other safety-related data. APPLICATION INSTRUCTIONS EQUIPMENT Mixing ▪ Electric drill paddle mixer (> 700 W, 300 to 500 rpm) Application ▪ Hard bristled brush ▪ Squeegee ▪ Flat trowel SUBSTRATE QUALITY / PRE-TREATMENT The concrete substrate must be sound and with a minimum pull off strength of 1.5 N/mm2. ▪ The substrate must be free of all traces of contaminants, loose and friable particles, cement laitance, oils and grease, wax, curing compounds, water repellent coatings etc. ▪ The substrate must be prepared by suitable mechanical preparation techniques such as high pressure water jetting, needle guns, grinding, blast cleaning etc. ▪ ▪ High spots must be removed by grinding. Weak concrete must be removed and surface defects such as blowholes and voids must be fully exposed. ▪ Repairs to the substrate, filling of blowholes/voids and surface levelling must be carried out using appropriate products from the Sikafloor®, Sikadur® and Sikagard® range of materials. ▪ All dust, loose and friable material must be completely removed from all surfaces before application of the product, preferably by brush and/or vacuum. ▪ Any wax based curing compounds or water repellent coatings must be fully removed by scraping or grinding. ▪ All intersections of horizontal and vertical surfaces should be profiled with a mortar fillet of minimum 25 mm × 25 mm. ▪ MIXING IMPORTANT Do not add water in any circumstances. Waterproofing coating Pour full quantity of SikaTop®-109 Seal IN Part A into a clean mixing container. 1. While stirring slowly, add SikaTop®-109 Seal IN Part B. 2. Mix thoroughly for 3 minutes, until free from lumps and smooth consistency is achieved. 3. Waterproofing mortar Pour 90 % of SikaTop®-109 Seal IN Part A into a clean mixing container. 1. While stirring slowly, add SikaTop®-109 Seal IN Part B. 2. Mix thoroughly for 3 minutes, until free from lumps and smooth consistency is achieved. 3. APPLICATION IMPORTANT SikaTop®-109 Seal IN may display signs of “blooming” after rain or in damp weather. This does not affect the performance of the coating in any way.

IMPORTANT

Do not apply in direct sun and/or strong wind. IMPORTANT In areas of severe water penetration, three coats might be required. IMPORTANT Protect freshly applied material from freezing conditions, rains etc. Waterproofing coating Thoroughly pre-wet the prepared substrate (2 hours recommended) before application. Keep the surface wet and do not allow to dry. Before application remove excess water, e.g. with a clean sponge. The surface must appear a dark matt appearance without shining and surface pores and cavities must not contain water. 1. Apply the first coat of SikaTop®-109 Seal IN with a hard bristled brush applied in the same direction and leave to harden for 4 to 6 hours. 2. (Optional) Wherever coating is to be reinforced with glass fabric, lay Sika® Fabric-50 into the freshly applied base coat and embedded firmly into the wet coat with brush. 3. Apply the second coat of SikaTop®-109 Seal IN in crosswise direction to the first application as soon as first coat has hardened. 4. Waterproofing mortar Thoroughly pre-wet the prepared substrate (2 hours recommended) before application. Keep the surface wet and do not allow to dry. Before application remove excess water, e.g. with a clean sponge. The surface must appear a dark matt appearance without shining and surface pores and cavities must not contain water. 1. Apply the first coat of SikaTop®-109 Seal IN by a flat trowel applied in the same direction and leave to harden for 4 to 6 hours. For pore / blowhole filling, tightly trowel into the pores / blowholes of the surface. 2. (Optional) Wherever coating is to be reinforced with glass fabric, lay Sika® Fabric-50 into the freshly applied base coat and embedded firmly into the wet coat with trowel. 3. 4. Apply the second coat of SikaTop®-109 Seal IN in

crosswise direction to the first application as soon as first coat has hardened. Note: If the second coat is applied 12 hours or later to first coat, the first coat shall be slightly pre-wetted by using a fine spray. IMPORTANT Slight fabric marks may be visible after application of the second coat, but it will have no adverse bearing on the performance of the waterproofing system. Protection The top coat while wet, it is recommended to sprinkle clean quartz sand(specially for vertical surfaces). 1. Once top coat has sufficiently cured, apply protection plaster, mortar, screed or any other adhesive layer. A bonding agent may be necessary. 2.

CURING TREATMENT

Cure SikaTop®-109 Seal IN for minimum 5-7 days to ensure full cement hydration and minimise cracks. Use wet hessian cloth, spray curing or similar approved methods during the recommended period of curing. CLEANING OF TOOLS Clean all tools and application equipment with water immediately after use. Hardened material can only be removed mechanically. LOCAL RESTRICTIONS Note that as a result of specific local regulations the declared data and recommended uses for this product may vary from country to country. Consult the local Product Data Sheet for exact product data and uses.

LEGAL NOTES

The information, and, in particular, the recommendations relating to the application and end-use of Sika products, are given in good faith based on Sika’s current knowledge and experience of the products when properly stored, handled and applied under normal conditions in accordance with Sika’s recommendations. In practice, the differences in materials, substrates and actual site conditions are such that no warranty in respect of merchantability or of fitness for a particular purpose, nor any liability arising out of any legal relationship whatsoever, can be inferred either from this information, or from any written recommendations, or from any other advice offered. The user of the product must test the product’s suitability for the intended application and purpose. Sika reserves the right to change the properties of its products. The proprietary rights of third parties must be observed. All orders are accepted subject to our current terms of sale and delivery. Users must always refer to the most recent issue of the local Product Data Sheet for the product concerned, copies of which will be supplied on request.