Hychem Hy-Flake — A decorative, medium duty epoxy floor topping with good colour stability

• Concrete substrate shall be firm, clean and dry with a compressive strength of 25 MPa and surface tensile strength of 1.5 MPa minimum
• New concrete must be allowed to cure for a minimum of 28 days
• Repair imperfections (holes and cracks) with an epoxy patching compound such as Hychem GPX where necessary
• Remove surface laitance, contaminants, coatings, curing compounds and all weak and loose materials
• Prepare concrete surface by Diamond Grinding or light Shot

Blasting to provide the appropriate surface profile for optimum mechanical keying

• Priming is generally not required
• Where necessary, apply Hychem GPX by roller at a rate of 6 sqm/litre

Mix only enough quantity that can be applied within the work life which is temperature dependent

• For Hychem SF20 Neutral, add colour pigment into the Component A (Resin) and mix until homogeneous (1 minute) using a helical mixer at a speed of 500 rpm
• Mix Hychem SF20 liquid components (Resin & Hardener ) together using a helical mixer at a speed of 500 rpm until the mix becomes homogeneous (1.5 to 2 minutes)
• Move the mixer around from side to side and top to bottom and scrape the sides of the mixing vessel to ensure thorough mixing follow the Same procedure for Epoxy Glaze 3

Where necessary, apply GPX as a clear primer using a medium nap roller at a coverage rate of 6 sqm per litre depending on the coarseness of the sub-floor surface. Allow to cure for a minimum of 12 hours or over-night but less than 24 hours.

• Apply first coat of Hychem SF20 using a medium nap roller at a coverage rate of 6 sqm. Allow to cure as above.
• Apply second coat of Hychem SF20 at a coverage rate of approximately 5 sqm per litre. Allow to cure as above.

Vinyl chips

• Broadcast chips into the wet SF20 coating at the required coverage rate
• Sweep off loose vinyl chips
• Apply first coat of Epoxy Glaze 3 and once cured polyvac with 80 mesh pad Slip Resistance is dependent on the size (grading) of aggregates used. As a guide only the following indicative R ratings apply:
• 80 mesh Alumina – R 11
• 36 mesh Alumina – R 12
• 24 mesh Alumina – R 13

Apply a second coat of Epoxy Glaze 3 and broadcast with anti-slip aggregate when wet. Once cured apply a final coat of Epoxy Glaze 3.

Xylene can be used for cleaning tools and equipment before the mixed compound begins to harden.

12 months from date of manufacture, stored under shelter at 25°C in original un-opened container.

Epoxy products are sensitive to the prevailing temperature and humidity at the time of application.

• High temperatures will shorten the pot life and application may become difficult due to insufficient time being available to lay the product.
• Low temperatures and high humidity will result in the epoxy reacting with moisture to produce a white powdery finish. The tendency to surface whiten depends on the hardener being used and is a common ocurrence at temperatures below 16 degC. The use of epoxy coatings below 10 degC is not recommended as this blooming effect can generally not be prevented at temperatures below this point.
• The white surface finish does not affect the structural strength and on site performance but can affect the adhesion of further surface coats.
• Chemical spillage of acids and sanitizing agents may attack the pigments used in the coating and result in discolouration.
• Differing epoxy products have differing resistance to chemicals, always ensure that the correct product is chosen for the service environment to be encountered.

• Wear gloves, eye protection and overalls during mixing and application.
• Ensure there is adequate ventilation and avoid breathing the vapour