FEATURES AND BENEFITS COVERAGE

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1 DESCRIPTION MasterSeal TC 259 is a pigmented, solvent based, single component, moisture curing, UV and weather resistant, protective top sealer. It is based on high quality aliphatic polyurethane prepolymers. FIELDS OF APPLICATION MasterSeal TC 259 is used as a UV and weather resistant protective top sealer on exposed, elastic polyurethane coatings e.g. MasterSeal M 800, M 803, M 811 and M 860. FEATURES AND BENEFITS excellent uv and weather resistance highly elastic superior adhesion even when permanently exposed to water single component no mixing easy to apply APPLICATION METHOD (a) Surface Preparation The coating to which the MasterSeal TC 259 is to be applied should be sound, clean and dry and free from oil, grease, loose particles and any other substance which may impair adhesion. Application should take place within the recoat intervals of the coating to which it is to be applied. The substrate temperature should be at least 3 K above the dew point. (b) Mixing MasterSeal TC 259 is a single component material. Prior to application, the temperature of the material should be in the range of C. Some settling of the pigments may occur on standing. MasterSeal TC 259 should, therefore, be well stirred before use with a mechanical drill and paddle at a very low speed (approx. 300 rpm). (c) Application Pour the amount required from the original container into an application container and apply evenly by roller, brush or by spraying to the prepared substrate. It is important to apply MasterSeal TC 259 thinly and to avoid ponding. Apply uniformly and finish by back rolling. The curing time of the material is influenced by the humidity and the ambient and substrate temperatures. At low humidity and low temperatures, the chemical reaction is slowed down; this lengthens the curing time and the recoating intervals. At high humidity and high temperatures the chemical reaction is accelerated thus the time frames mentioned above are shortened accordingly. Following application the material should be protected from direct contact with water for approx. 8 hours. The temperature of the substrate must be at least 3 K above the dew point both during the application and for at least 8 hours after the application (at 15 C). COVERAGE The consumption of MasterSeal TC 259 is kg/m 2 depending on the condition and porosity of the substrate. The above consumption figures are intended as a guide only and may be higher on very rough or porous substrates. FINISHING AND CLEANING Reuseable tools should be cleaned carefully with Cleaner 40 or e.g. solvent naphtha. PACKAGING MasterSeal TC 259 is supplied in 12,5 kg working packs. COLOUR MasterSeal TC 259 is available in following colours: approx. RAL 1001, 3013, 5010, 6011, 6021, 7001, 7016, 7023, 7030, 7032, 7035, 7037, 7038, 7040, 7042, 7047, 9003, 9010 und STORAGE / SHELF LIFE Store in original containers under dry conditions at a temperature between C. Do not expose to direct sunlight. For maximum shelf life under these conditions see "Best before..." label.

2 WATCH POINTS This product conforms to the EU directive 2004/42/EG (DecoPaint directive) and contains less than the maximum allowable VOC limit (Stage 2, 2010) According to the EU directive 2004/42, the maximum allowable VOC content for the Product Category IIA / j is 500 g/l (Limit: Stage 2, 2010). The VOC content for MasterSeal TC 259 is < 500 g/l (for the ready to use product). HANDLING / PRECAUTIONS In its cured state, MasterSeal TC 259 is physiologically nonhazardous. The following protective measures should be taken when working with this material: Wear safety gloves, goggles and protective clothing. Avoid contact with the skin and eyes. In case of eye contact, seek medical attention. Avoid inhalation of fumes. When working with the product, do not eat, smoke or work near a naked flame. For additional references to safety hazard warnings, regulations regarding transport and waste management, please refer to the relevant Material Safety Data Sheet. The regulations of the local trade association and/or other authorities regarding safety and hygiene of workers handling polyurethanes and isocyanates must be observed.

3 Technical data* Properties Standard Data Unit Chemical base Polyurethane Mixing ratio A : B single component Solids content 58 % Density (at 23 C) 1.2 g/cm 3 Viscosity (at 23 C) 4 mm DIN 75 mpas Recoating interval / 23 C, 50 % rel. h. min. 12 max. 3 Fully cured / 23 C, 50 % rel. h. 5 d h d Substrate and ambient temperatures min. 5 max. 30 Permissible relative humidity min. 40 max. 90 * The above figures are intended as a guide only and should not be used as a basis for specifications. C C % %

4 CEMARKING (ETAG 005) 1119 BASF Coatings GmbH Donnerschweer Str. 372, D26123 Oldenburg ETAG 005 Part 6 Liquid applied, roof waterproofing, polyurethane system Water vapour diffusion resistance 480 factor µ Resistance to wind loads > 50 kpa Resistance to spreading fire and radiant heat Reaction to fire Statement on dangerous substances Working life Climatic zones Imposed loads Roof slope Broof t1 Class E Does not contain any W3 M and S P1 to P4 S1 to S4 Lowest surface temperature TL 4 Highest surface temperature TH 4 NPD = No performance determined. Performance determined in system build up MasterSeal Roof 2103.

5 Disclaimer: In view of widely varying site conditions and fields of application of our products, this technical data sheet is meant to provide general application guidelines only. This information is based on our present knowledge and experience. The customer is not released from the obligation to conduct careful testing of suitability and possible application for the intended use. The customer is obliged to contact the technical helpline for fields of application not expressly stated in the technical data sheet under "Fields of Application". Use of the product beyond the fields of application as stated in the technical data sheet without previous consultation with BASF and possible resulting damages are in the sole responsibility of the customer. BASF Coatings GmbH Donnerschweer Str Oldenburg Tel Fax All descriptions, drawings, photographs, data, ratios, weights i.e. stated herein can be changed without advance notice and do not represent the condition of the product as stipulated by contract. It is the sole responsibility of the recipient of our products to observe possible proprietary rights as well as existing laws and provisions. The reference of trade names of other companies is no recommendation and does not exclude the use of products of similar type. Our information only describes the quality of our products and services and is no warranty. Liability is accepted for incomplete or incorrect particulars in our data sheets only in the event of intent or gross negligence, without prejudice to claims under product liability laws. 3. Edition = registered trademark of BASF group in many countries.