Sika Sikafloor 378

Sika Sikafloor 378 is a 2-part, epoxy based, coloured, flooring seal coat with improved resistance against amine blushing under critical weather conditions. It provides a hard wearing, abrasion and chemical resistant gloss finish over aggregate broadcast Sikafloor® epoxy or polyurethane resin floors. Internal use.

Best Uses

Sikafloor®-378 may only be used by experienced professionals. Sika Sikafloor 378 is suitale as a seal coat for Sikafloor® industrial flooring broadcast systems and top coat on Sikafloor® flooring systems. Suitable for slip resistant broadcast systems on car park decks, ramps and warehouse floors.

• Improved resistance against amine blushing
• Good abrasion resistance
• Good mechanical and chemical resistance
• Good opacity
• Gloss finish
• Slip resistant surface to suit clients requirements

Application

SUBSTRATE QUALITY / PRE-TREATMENT
Cementitious substrates (concrete / screed) must be structurally sound and of sufficient compressive strength (minimum 25 N/mm2) with a minimum tensile strength of 1.5 N/mm2. Substrates must be clean, dry and free of all contaminants such as dirt, oil, grease, coatings, laitance, surface treatments and loose friable material. Cementitious substrates must be prepared mechanically using suitable abrasive blast cleaning or planing / scarifying equipment to remove cement laitance and achieve an open textured gripping surface profile suitable for the product thickness. High spots can be removed by grinding. Weak cementitious substrates must be removed and surface defects such as blow holes and voids must be fully exposed.

Repairs to the substrate, filling of cracks, blowholes / voids and surface levelling must be carried out using appropriate products from the Sikafloor®, Sikadur® and Sikagard® range of materials. Products must be cured before applying Sikafloor®-378.

All dust, loose and friable material must be completely removed from all surfaces before application of the product and associated system products, preferably by vacuum extraction equipment.

MIXING
Prior to mixing all parts, mix separately Part A (resin) using a low speed single paddle electric stirrer (300–400 rpm) other suitable equipment. Mix liquid and all the coloured pigment until a uniform colour has been achieved. Add Part B (hardener) to Part A and mix Part A + B continuously for 3 minutes until a uniformly coloured mix has been achieved then, if required, gradually add the appropriate amount of Sika® Extender T. Mix for a further 2 minutes until a uniform mix has been achieved. To ensure thorough mixing, pour materials into another container and mix again to achieve a smooth consistent mix. Excessive mixing must be avoided to minimise air entrainment. During the final mixing stage, scrape down the sides and bottom of the mixing container with a flat or straight edge trowel at least once to ensure complete mixing.

Mix full units only. Mixing time for A + B + Sika® Extender T (if required) = 5 minutes.

APPLICATION
Strictly follow installation procedures as defined in method statements, application manuals and working instructions which must always be adjusted to the actual site conditions. Prior to application, confirm substrate moisture content, relative air humidity, dew point, substrate, air and product temperatures.

Seal coat
After waiting the appropriate overcoating time / curing, pour the mixed material onto the slip resistant broadcast layer and spread evenly using a squeegee at the required consumption rate to completely encapsulate the sand. Then using a short-piled roller, back roller in two directions at right angles to each other. A seamless finish can be achieved if a ‘wet’ edge is maintained during application.