Sikaflex PRO-3 | Polyurethane sealant

Polyurethane sealant for industrial floors

Description

Characterisrics

Application

Sikaflex PRO-3 | Elastic, resilient, moisture-resistant, one-component polyurethane-based sealant with high mechanical strength.

Intended for use indoors and outdoors.

Sikaflex PRO-3 is a sealant for various purposes.

Deformation seams in the floors;
Applications in closed rooms, in the open air, in pedestrian zones and on the roadway (for example, in multi-storey garages, in parking lots);
Applications in warehouses and production premises;
Applications on various bases, including on surfaces in contact with food products;
Use with ceramic tiles used in public buildings, etc.;
Sealing of seams in water treatment and sewage facilities;
Use of floor seams in tunnel construction;
It is used in "clean" rooms.

Resistant to water, sea water, dissolved alkalis, cement mortars and water-diluted detergents;
Diesel and jet fuel, approved by the DIBT directive;
Unstable to alcohols, organic acids, concentrated alkalis and acids, chlorine, hydrocarbon fuel.

Color	White, concrete series, series, black, other colors are available upon request
Packaging	Tubes of 600 ml, 20 tubes in a box. Cartridges of 300 ml. 12 cartridges in a box
Terms and storage period	15 months from the date of manufacture, provided it is stored in the original, unopened and undamaged packaging in a dry place, protected from direct sunlight, at a temperature from +10°C to +25°C.
Chemical basis	One-component polyurethane that hardens on contact with air moisture
Density	1.35 kg/l (DIN 53 479-B)
Film formation time	60 minutes (+23°C / relative humidity 50%)
Curing speed	3.5 mm / 24 h (+23°C / relative humidity 50%)
Seam width	Min. width = 10 mm / max. width = 35 mm
Landslide	0 mm, very good
Operating temperature	From -40°C to +80°C
Tensile strength	8 N/mm (+23°C / relative humidity 50%)
Shore hardness A	38 after 28 days (+23°C / relative humidity 50%) (DIN 53 505)
Modulus of elasticity	0.6 N/mm2 at 100% elasticity (+23°C / relative humidity 50%) (DIN EN ISO 8340)
Elongation at break	700% (+23°C / relative humidity 50%) (DIN 53 504)
Elastic recovery	> 80% (+23°C / relative humidity 50%) (DIN EN ISO 7389 B)
Chemical resistance	Resistant to water, sea water, dissolved alkalis, cement mortars and water-diluted detergents. Diesel and jet fuel approved by the DIBT directive. Unstable to alcohols, organic acids, concentrated alkalis and acids, chlorine, hydrocarbon fuel.

The base must be clean, dry, homogeneous, must not contain oils, greases, loose and crumbling particles;
Cement milk should be removed.

SikaflexPRO-3 has good adhesion to a clean and strong base;
For optimal adhesion in critical operating conditions, for example, outdoors or under high pressure, seams must be thoroughly cleaned and primed with special primers.
If there are doubts about the quality of the connections, preliminary tests are first carried out.

Enameled ceramics, aluminum, anodized aluminum, stainless steel and galvanized steel, powder coatings, etc., must be cleaned with a fine abrasive and Sika Aktivator-205 (SikaCleaner-205) and a clean towel / clean cloth, and after drying (at least 15 minutes), apply sealant;
All other metal surfaces, not mentioned above, are cleaned with the help of a fine abrasive and Sika Aktivator-205 (SikaCleaner-205) and a clean towel / clean cloth, after drying (at least 15 minutes), apply the primer SikaPrimer- 3N;
Before laying the sealant, wait for drying time (min. - 30 minutes, max. - 8 hours);
With rigid PVC, use SikaPrimer-215.
Before laying the sealant, wait for the primer to dry (min. - 30 minutes, max. - 8 hours).

For example, concrete, porous concrete and construction mortar, brick should be primed with SikaPrimer-3 N using a brush or brush;
Before laying the sealant, wait for the primer to dry (min. - 30 minutes, max. - 8 hours).

Sikaflex PRO-3 sealant is delivered ready to use;
After preparing the seam and the base, set the limiting cord to the required depth and make a primer if necessary;
Insert the cartridge into the gun, then squeeze the Sikaflex PRO-3 sealant into the seam, ensuring tight contact of the material with the sides of the seam;
Fill the seam, avoiding the formation of air voids. When compacting and leveling , it is necessary to ensure tight adhesion of Sikaflex PRO-3 sealant to the sides of the seam to obtain high adhesion;
In those cases, when it is necessary to get clear or exceptionally neat lines of the joint, use a protective tape;
Remove the tape when the sealant is still soft;
Smooth the surface of the seam using a smoothing liquid until the perfect surface is obtained.

Clean all application tools and equipment with Sika Sealant Remover / Sika TopClean-T immediately after use;
Remove hardened (polymerized) material only by mechanical means.

Excessive coating of elastic sealants is not allowed.
The thickness of compatible coatings applied to seams should not exceed 1 mm;
Compatible coatings must be checked in accordance with DIN 52 452-2;
Under the influence of chemical preparations, high temperatures, and ultraviolet radiation, deviations in color are possible (especially shades of white);
At the same time, the change in color does not lead to a decrease in the technical characteristics or strength of the sealant;
When using with natural stone, contact our technical service;
Do not use Sikaflex® PRO- 3 with glass, on bituminous bases, with natural rubber, with rubber based on a copolymer of ethylene, propylene and diene monomer, with construction materials that can emit oils, plasticizers or solvents that can damage the sealant;
Do not use Sikaflex PRO-3 in swimming pools;
Do not mix or apply on fresh Sikaflex PRO-3, substances that can react with isocyanates, especially alcohol, which is often a component of solvents, solvents, cleaners and lubricants for formwork forms.
Such contact can stop the polymerization reaction of the material.