Performance Waterborne Coating

The coating product may be used as a topcoat to control the sheen and provide protection against scratch, mar, high heel marks and abrasion.

This product is based on UV and color stable aliphatic waterborne urethane coating. To be used for applications such as balcony, porches, stairs, and swimming pool decks.

• ZeraClad W-35 (ZeraBinaW)
  It is a single component, non-slip waterborne aliphatic polyurethane coating. It is available in two standard colors (grey and beige). ZeraClad W-35 exhibits excellent UV resistance, gloss retention and color fastness for exterior applications. It displays a unique combination of hardness and flexibility, and is fast drying (multiple coats per day). It has superior performance in terms of durability and chemical resistance as well as abrasion and impact resistance. It is recommended for balconies, porches, swimming pool decks, basements, cafeterias, etc.
• ZeraCryl W
  It is a high performance single component, self-crosslinking waterborne Nano-based acrylic urethane sealer specifically designed to protect and enhance the appearance of concrete for both interior and exterior applications. It offers great exterior durability, non-yellowing characteristics with excellent adhesion, and chemical resistance   

• ZeraCote W-204
  ZeraCote™ W-204 is a premium, odorless, waterborne aliphatic urethane floor coating. It displays a unique balance of hardness, flexibility and chemical resistance. It is available in a variety of colors in matte finish.

SURFACE PREPARATION

New concrete must be cured for a minimum of 28 days before applying ZeraTuf™. The substrate must be above 12^oC (54^oF) and must be free of all dirt, waxes, previously applied coatings, oil, grease, laitance and any foreign matter that may interfere with the bond of the primer to the prepared substrate. Cracks and surface defects should be repaired prior to the application of the primer. Concrete surfaces to be coated should be mechanically cleaned to provide a clean tooth for the primer application.  If acid-etching is the method of choice for preparation of the concrete surface, the etched surface must be thoroughly flushed and dried for 24 hours prior to application of the primer. Use an epoxy-based primer such as ZeraPrime™ W-48FS over prepared concrete surfaces.

ZeraTuf™ adheres very strongly over epoxy coatings of all types. The epoxy floor to receive ZeraTuf™ must be clean, dry and free from contaminants. Sanding with 60-80 mesh grits is recommended.

APPLICATION:

ZeraTuf™ may be applied with a  roller, spray or brush. A spray technique offers the best performance for film consistency and appearances. For spray applications, ZeraTuf™ may be thinned with water (5% by volume) to a viscosity of 22 sec (Zhan cup #2). Maintain uniform thickness along the entire floor. Remove excess before drying.

Air spray: suggested equipment , or equivalent:
Nozzle size 1.8- 2.0 mm and atomizing air 2.8-3.2 bar.  Airless spray:
Tip orifice is 0.011 to 0.015", atomizing pressure: 2700-3300 psi.

Roller Application:
It must be noted that every contractor has his/her own technique in applying a clear coating to obtain an attractive defects-free finish. The following are just guidelines:
Ideally a  lint free 9 mm nap roller is used to apply ZeraTuf™. On larger jobs, we recommend using a commercial 18" roller.
Apply the coating , with a minimum pressure, in a uniform consistent pattern in a one pass application to provide an even coat.

DO NOT ALLOW THE FRESH EDGE OF THE COATING TO DRY. If the coating begins to “clarify” (begins to change from milky white to clear), the coating is curing. Do not roll back into this coating at this stage, as this will create lap marks, hazing, and other differences in the cured coatings appearance. Also avoid heavy applications and puddling.

Two to three coats at a coverage rate of 300-500 sq. ft/U.S. gallon is recommended depending on the porosity of the surface being coated. Allow 4 hours drying time between coats or 12-16 hours for traffic.

It is recommended that  cross-linker ZeraLink™ XL be used in the topcoat(s), particularly in heavy-pedestrian traffic applications. Slowly add Part B ( ZeraLink™ XL) into ZeraTuf™ W-104 under agitation for 2 minutes. Apply the coating over a properly prepared surface.

Curing:
The finished floor will take normal foot traffic after overnight drying but may remain susceptible to marking by furniture or heavy traffic until fully cured for 3 days after application. (Do not cover the coating until fully cured. (Minimum 3 days @ 23^oC/74^oF)

LIMITATIONS

• Avoid puddling or applying the coating in a thick film as it may cause shrinkage, cracking, and poor adhesion
• Applying ZeraTuf™  over a highly damp surface or as a thick film may cause whitening that may not disappear over time
• If  multiple coats are required, reapply within 24 hours; otherwise, light sanding is required to achieve good  inter-coat adhesion
• Not recommended for warehouse facilities, industrial applications, garages, or vehicular traffic
• It will require 7 days of cure (with ZeraLink™ XL) to achieve maximum performance

TROUBLESHOOTING

• Slow dry or clearing: Low curing temperatures; high humidity; lack of ventilation after application.
• Streaks: Product applied too thin.
• Fish eyes: A foreign material on the surface, like oil, grease, or silicone.
• Bubbling: Overworking the product with applicator: shaking the finish before applying; or, high
• temperatures during application.
• Peeling: Improper floor preparation.
• Dirt particles: Applicator not “de-fuzzed” causing loose fibers in the film; or, room vents not sealed during the application.
• Screen marks: Using too aggressive of a screen between coats.
• Hazy film: High humidity during drying.
• Lap marks: Not maintaining a “wet edge” when applying the coating

How to Care for ZeraTuf/ZeraCote Urethane Floor

Prevention
These are the condition to avoid:

• Chemical spillage (strong solvents, paint strippers, battery acid, brake fluid); in case of accidental spillage, wash immediately with plenty of water.
• Dirt and grit are the worst enemies, it leads to scratch the floor
• Standing can wrap and damage the floor badly
• Caustic and hard cleaners
• Dragging furniture or sharp objects
• Do not use vacuum with beater bars
• Sever impact from heavy objects
• Direct sunlight would discolor the epoxy coating by nature

Regular Care

• SWEEP: Brooms with fine, exploded ends trap dust and grit effectively.
• VACUUM: Canister vacuums with special bare floor attachments are the surest way to get rid of all the dirt and dust.
• DUST MOP: Use a good dust mop --- one with a 12- to 18- inch cotton head ---- and a special dust mop treatment. Spray the treatment onto the mop head 12 to 24 hours before dust mopping.
• Mix an all-purpose cleaning product such as Pine-Sol or Mr. Clean and mix it according to manufacturer's directions in a bucket with warm (never hot) water. Scrub the floor as needed with a sponge mop or string mop.