EPOLIS EP 603 VERTICAL

The concrete substrate must be made of concrete of min. C20/25 grade, with a strength of at least 1,5 MPa measured by the pull-off method. The substrate must be stable, continuous, even, bonded, seasoned and dry. It must be clean and free of oil, grease, cement laitance and other substances that impair adhesion. The substrates should be cleaned mechanically, dust, any loose layers and sharp protruding edges should be removed.
The areas of scratches and cracks should first be incised with an angle grinder to a depth of approximately 2 cm along the crack and transversely, in sections of approximately 15 cm, at approximately 25 cm intervals. The incisions need to be vacuumed thoroughly.
Steel surfaces should be cleaned of rust and other impurities to a cleanliness grade of Sa 2½. 
Prime the sides of gap with the NEXLER EPOLIS EP 601 product. After the primer has dried, no later than after 24 hours, apply the EPOLIS EP 603 epoxy sealant.

Check the production date on the packaging before use. The product should not be incorporated beyond its shelf life. The product, once opened, should not be objectionable and should be free of any mechanical contaminations. After mixing, the product should be homogeneous and free of lumps.

Components A, B and C are supplied in a proper mixing ratio.

EPOLIS EP 603 Horizontal: Mix component A in the delivery vessel in order to homogenise and evenly distribute the mineral filler and colour. Then add the total amount of ingredient B and mix with a mechanical stirrer at 300 - 600 rotations per minute for approximately 3 minutes. While mixing, scrape the mixture from the sides and bottom of the vessel with the mixer to ensure thorough distribution of the hardener.

EPOLIS EP 603 Vertical: Prepare the product in accordance with the instructions of the EPOLIS EP 603 Horizontal version, then add the powder component C and mix the ingredients again with a stirrer for approximately 3 minutes. If the compound heats up, wait 5 - 10 minutes until it returns to ambient temperature.
Pour the entire mixture into the bottle of component B. Cut off the application tip located on the bottle cap.
In the case of partial use of the product, it should be prepared while maintaining the appropriate weight proportions of the components: 1 part of component A to 0,54 parts of component B, or 1 part of component A to 0,54 parts of component B and 0,06 parts of component C.
The permissible application time of the mixed material at a temperature of +20°C is up to 45 minutes.

The bonded coating should have a uniform texture, without bulges, air bubbles, wrinkles or cracks. Particular attention must be paid to the proper filling of the expansion joint with expansion cord so that the material only comes into contact with the vertical surfaces of the joint.

Sealing of the expansion joint: The bottom horizontal surface of the joint should be filled with an expansion cord to which the sealants do not adhere. EPOLIS EP 603 should be placed in the joint in such a way (bond adhesives, sealants, movable joints) that it only makes contact with the two vertical surfaces of the joint. The width A and depth B of the seal should be min. 5 mm. Backer rod should have a diameter 20% bigger than the width of the gap. With wide expansion joints A > 12 mm, the depth B should be half the width A : B = 2 : 1.

Closing scratches, cracks: Scratches and cracks should be closed forcibly. Pour the EPOLIS EP 603 epoxy resin over appropriately widened and cleaned cracks, and, additionally, place steel reinforcement inserts in the transverse cuts. Before the resin starts to bind, sprinkle the filled in joint with clean, dry sand.
Freshly filled in joints should be protected against water exposure for at least 8 hours.

Before use, please read the application details in the product's Technical Data Sheet.