Bona Mega Natural varnish seals and protects wooden floors yet preserves the look and feel of pure wood.

Product Advantages

Bona Mega varnish is a 1 part polyurethane topcoat, so no need for any mixing.
Clean and safe low emissions
Used for heavy domestic traffic and commercial areas
High resistance to scuff marks and wear
Can be used with underfloor heating
Easy application, with good flow and levelling

Technical Spec

Coverage rate: 8-10 m² /litre (100-120g/m² ) per coat

Drying time, until: - Ready for sanding/recoating: 2½-3 hours* - Light use: 24 hours* - Full hardness: 7 days* 
*under normal climate conditions, 20°C/60% R.H.

Preparation

Prior to application, the surface must be pre-treated with a waterborne primer from Bona. Ensure the floor is acclimatized to its end-use environment, well sanded, dry and free from sanding dust, oil, wax and other contamination. Allow lacquer to reach room temperature, insert filter and shake the container thoroughly before use. Optimal application conditions are between 18-25°C and 30-60% relative air humidity.

High temperatures and low humidity shorten, and low temperatures and high humidity lengthen drying time. The minimum temperature for use is 13°C.

Application

1. Apply the lacquer using a Bona Roller. Roll with a smooth flowing motion alternately across and with the grain of the wood avoiding accumulations of product. Always maintain a “wet edge” to avoid overlaps. Allow to dry before applying further layers of varnish. Anticipate a slightly longer drying time for each layer that is applied.
2. If necessary make an intermediate sanding using a screen or the Bona Scrad System grit P150 (or finer) and remove dust before applying the final layer of varnish. Note: If the previous layer of varnish has been allowed more than 24 hours of drying time then an intermediate sanding is always required.

The floor will take light foot traffic approximately 8 hours after the final application. Allow the surface to dry for at least 1 week before covering with carpets or other floor coverings, or loading with heavy objects. Also, avoid damp mopping the floor during this time.

Cleaning

Cleaning: Wipe tools free from excess varnish before cleaning with water. Dried material can be removed with acetone

Maintenance / Aftercare

Clean the floor with Bona Cleaner or Bona Wood Floor Cleaner and a microfibre pad.(These can be purchased together with a Bona spray mop). For maintenance and upkeep of the surface, floors can be overcoated at intervals with additional coats of varnish. The frequency of this operation can be greatly reduced if Bona Freshen Up or Bona Wood Floor Refresher is applied periodically. This will restore the appearance of a dull floor whilst still allowing further coats of lacquer to be applied without the need for sanding the floor back to bare timber

Storage / Shelf life

Shelf life: 1 year from date of production in unopened original container
The temperature must not fall below +5°C or exceed +25°C during storage

Certifications:

GreenGuard DIBt; safe building product 
EN 14904:2006; approved friction for sports floors
DIN 18032:2; approved friction for sports floors 
EN 13501-1; Reaction to fire
EN 71-3: Application on children’s toys