AK 513

Substrate type
Properly cured and treated cement, cement-lime and gypsum plaster, concrete substrates, cement, stone, terrazzo anhydride and asphalt floors. Walls made of ceramic and silicate bricks and blocks as well as of cellular concrete blocks. Old glazed, terracotta and porcelain tiles, as well as gypsum, cement fibre and gypsum fibre boards, adhering, sound and stable paint coats, stable OSB boards (with thickness ≥ 22 mm) and reinforcing layers in insulating systems. Waterproofing coats made of ALPOL AH 751 membrane and ALPOL AH 752, ALPOL AH 753, ALPOL AH 754 mortars.

Substrate preparation
Substrate should be clean, stable and sound. New plaster work and concrete should be set and cured. Old, loose, brittle and peeling material of poor adhesion should be removed. Pits should be patched with ALPOL AZ 130 quick setting mortar or ALPOL AZ 135 levelling mortar. Treat the loose substrate with ALPOL AG 700 and ALPOL AG 703 deep penetrating primer to reduce absorption, if necessary. Remove impurities and coatings impairing adhesion from terrazzo and stone surfaces and treat them with ALPOL AG 700 or ALPOL AG 702 primer. To provide a bonding coat, apply a thin layer of adhesive on old tiles, after degreasing and roughening their surface, or treat the surface with ALPOL AG 702 primer. Gypsum surfaces, anhydrite floor and gypsum fibre boards should be primed twice with ALPOL AG 703 primer.  Apply not thinned ALPOL AG 708 primer on OSB boards cleaned of substances impairing adhesion (e.g. by machine sanding).

Instructions for use
Stir the bag contents manually or mechanically with a specified amount of clean and cold water to bring the mixture to the homogeneous and required consistency. After 5 minutes, stir the prepared mix again. Apply the adhesive mix with a float or a putty knife and spread it with a notched trowel of appropriate notch size. When fixing tiles on critical substrate and those exposed to water penetration, apply the adhesive also on tile bottom. Do not soak the tiles before fixing. Apply tiles and press them against the substrate. Position adjustment can be made within 10 minutes from fixing. Fix the tiles within max. 30 minutes from spreading adhesive on the surface. There is no need to use tile spacers as the adhesive does not flow down (no slip). Use the adhesive within 3 hours from mixing with water. If the adhesive thickens in that period of time, stir it again without adding water. Adding too much water extends setting time and impairs all adhesive characteristics, such as adhesion, slip and transverse strain. Unused hardening slurry cannot be mixed with water again. Throw it away.

Tools
Mixer or low-speed electric drill, basket mixer, notched trowel, putty knife.

Working conditions
Work in ambient temperatures between +5°C and +30°C. Do not add any other agents to the adhesive. Protect freshly applied adhesive from excessive drying and moisture.

Storage
Store in original, unopened packages in dry place – shelf life 12 months from production date. Protect from moisture during transport and storage.

Notes
The specifications and instructions for use are based on the temperature (23±2)°C and relative air humidity (50±5)%. The workability may vary in different conditions. Becomes alkaline after mixing with water. Irritating to eyes, respiratory system and skin. Appropriate eye, respiratory and skin protection measures should be used. If the product gets into eyes, rinse immediately with plenty of water and seek medical advice. Keep away from children. Use water to remove fresh dirt or ALPOL AI 770 cleaner to remove hardened dirt. The manufacturer assumes no liability for damage resulting from improper or inappropriate use of the product.

General recommendations
Work according to building practice, observing health & safety standards and regulations.