AK 526

Substrate type
Structural floors and walls made of monolithic or precast concrete, bricks, hollow clay blocks, hollow silicate blocks, cellular concrete blocks, raw or finished with concrete or concrete and lime plasters.

Substrate preparation
The substrate should be dry, clean, stable, sound and even. New concretes should be settled, seasoned and cleaned of any anti-adhesive agents. Remove loose, cracked and brittle plasterwork and widen joints. Patch small chipped areas with ALPOL AZ 130 quick setting or ALPOL AZ 135 levelling mortar; for larger surfaces, apply ALPOL AT 310 plaster. Remove contamination and peeling paint from sound plasterwork. Dedust the surfaces. Treat loose substrates with ALPOL AG 700 deep-penetrating primer. If it is necessary to reduce substrate absorption, use properly diluted ALPOL AG 708 or ready-to-use ALPOL AG 703 primer. In order to increase adhesion to very smooth, non-absorbent concrete surfaces, you can use ALPOL AG 702 primer for concrete substrates.

Instructions for use
Stir the bag contents manually or mechanically with a specified amount of cold and fresh water to reach a homogeneous mix and required consistency. After 5 minutes, stir the prepared mix again. Use the adhesive within 1 hour from mixing with water. If the adhesive thickens during this period, stir it thoroughly again without adding water. Adding too much water impairs all adhesive characteristics: adhesion, stripping strength and setting time.
First, spread a thin layer of the adhesive on the mineral wool board, rubbing it into the board surface. Then use a notched trowel to apply and spread a proper amount of the adhesive in a thin layer all over the entire surface of the board. Press the boards against the structural floor or wall lightly, while simultaneously sliding them towards the previously attached boards. Board position can be adjusted within 10 minutes after application. Apply the boards within up to 20 minutes after spreading the adhesive on the surface. 

Tools
Mixer or low-speed electric drill, basket mixer, notched trowel, plain float, trowel, container for the adhesive.

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 work 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 given for the temperature of (20±2)°C and relative air humidity of (60±5)%. The workability may alter in different conditions. Becomes alkaline after mixing with water. Irritating to eyes, respiratory system and skin. Appropriate eye, respiratory system and skin protection measures should be used. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Keep away from children. Use water to clean fresh dirt or the ALPOL AI 770 clinker cleaner for cleaning hardened dirt. The manufacturer accepts no responsibility for damage caused by unskilful or inappropriate use of the product. 

General recommendations
Always follow best construction work practices, observing health & safety standards and regulations. To learn more about applying thermal insulation boards and how to insulate garage structural floors and walls, refer to the manual that accompanies ALPOL TERMO STROP garage structural floor thermal insulation system.