DuroGrit - Tomorrow's UV protection for your outdoors

› Which colour should I choose?

For the best results, we advise staying as close to the natural look as possible. Going lighter than the natural colour of the wood may shorten the durability of the protection.

• Grassland Beige is the natural look for pine, douglas, larch & teak.
• Rocky Umber is the natural look for thermo pine & cumaru.
• Foxy Brown is the natural look for iroko & ipé.

› On new wood

Step 1: We recommend allowing the new installed wood to weather outdoors for about 4-6 weeks (except oak)

• When this is not possible, sand the wood scratch-free with a screen 80 grit to open the wood pores.
• Allow already installed new wood or wood containing natural wood extractives (red cedar, afzelia, redwood, …) and especially hardwood (ipé, teak, merbau, …) to weather outdoors for about 4-6 weeks. This will allow the water-soluble substances to come out of the wood and will allow the wood to absorb the DuroGrit better.

Step 2: Clean the surface with Exterior Wood Cleaner and let it dry

• First wet the wooden surface with a fine mist of water from a garden hose.
• Clean the surface with Exterior Wood Cleaner and a stiff bristled nylon scrubbing brush (wear gloves and eye protection).
• Do not allow the solution to dry. Thoroughly rinse the cleaning solution residue with clean water until all foaming residue is rinsed away.
• Allow the surface to dry completely.

Step 3: Apply DuroGrit

• Only work in frost-free and dry conditions and avoid application of DuroGrit when rain is expected within 10 hours of application.
• Stir the product a few minutes before use.
• Apply the product evenly to the surface with a soft, synthetic brush made for water-based products. Work in the direction of the wood installation, always covering the full length. For vertically installed boards, this means from top to bottom and for horizontally installed wood from left to right (or vice versa). So never stop in the middle of a board but only at a natural break (e.g. a seam, edge, staircase, etc.). Work in small sections of about 1 or 2 boards wide. Always apply sufficient product and brush again afterwards to avoid start/stop and brush marks (remember not to exert too much pressure on the brush).
   
  • Tip: Maintain a wet edge to avoid overlaps.
  • Errors created during application (start marks, brush marks, overlaps, …) can be touched up on the wet surface up to 15 minutes after application (depending on the weather conditions). Apply a little extra DuroGrit on the mark. Put some pressure on your brush so the product that has already been applied dissolves and mixes with the new one. Finally smooth out until you no longer have brush marks.

Step 4: Let dry for 3 hours

• Let the surface dry for about 3 hours. Complete curing takes place after 3 days (at 20°C (68°F)).
  • Keep in mind that low temperatures, low ventilation and high humidity significantly slow down the drying and curing process.

› In case of renovation on older non-Rubio Monocoat products

Step 1: Remove all residues of old applications

• Remove all residues of old applications by sanding the surface scratch-free. End with a screen 80 grit, do not sand smoother. The smoother you sand, the less product can penetrate in the wood and the less intense the colour (and protection) will be.
  • Is your wood too dirty to start sanding right away? Then first clean it with either water or Exterior Wood Cleaner (see step 2 for instructions). By already removing a lot of dirt beforehand, your sandpaper won't get clogged up right away when sanding.

Step 2: Clean the surface with Exterior Wood Cleaner and let it dry

• First wet the wooden surface with a fine mist of water.
• Clean the surface with Exterior Wood Cleaner and a stiff bristled nylon scrubbing brush (wear gloves and eye protection).
• Do not allow the solution to dry and thoroughly rinse off the cleaning solution residue with clean water until all foaming residue is rinsed away.
• Allow the surface to dry completely.

Step 3: Apply DuroGrit

• Only work in frost-free and dry conditions and avoid application of DuroGrit when rain is expected within 10 hours of application.
• Stir the product a few minutes before use.
• Apply the product evenly to the surface with a soft, synthetic brush made for water-based products. Work in the direction of the wood installation, always covering the full length. For vertically installed boards, this means from top to bottom and for horizontally installed wood from left to right (or vice versa). So never stop in the middle of a board but only at a natural break (e.g. a seam, edge, staircase, etc.). Work in small sections of about 1 or 2 boards wide. Always apply sufficient product and brush again afterwards to avoid start/stop and brush marks (remember not to exert too much pressure on the brush).
   
  • Tip: Maintain a wet edge to avoid overlaps.
  • Errors created during application (start marks, brush marks, overlaps, …) can be touched up on the wet surface up to 15 minutes after application (depending on the weather conditions). Apply a little extra DuroGrit on the mark. Put some pressure on your brush so the product that has already been applied dissolves and mixes with the new one. Finally smooth out until you no longer have brush marks.

Step 4: Let it dry for 3 hours

• Let dry for about 3 hours. Complete curing takes place after 3 days (at 20°C / 68°F).
  • Keep in mind that low temperatures, low ventilation and high humidity significantly slow down the drying and curing process.

› Industrial application

If you want to apply this product in an industrial manner, we advise you to get in contact with our technical care team.

› Maintenance

Cleaning instructions

Regular cleaning can be done with Exterior Soap (Ecospray) or All Natural Wood Cleaner (Spray). Do not use any other cleaning products or detergents as these might affect the protection!

Maintenance instructions

In general we recommend a yearly visual check-up just after winter season.

Please check for the presence of the following two points:

a. Dirt & green deposits; clean with low pressure water and a soft brush or use Exterior Soap/All Natural Wood Cleaner (consult Technical Data Sheet before use)

b. Fading of colours 

If necessary (concerning point b) apply a maintenance coat according to the instructions. First clean your wood with Exterior Wood Cleaner, then apply a layer of DuroGrit in the original colour. Depending on the degree of fading of the colour, dilute DuroGrit with maximum 20% water to avoid applying too much product and making the colour too opaque.

The frequency of maintenance depends on the weather conditions, exposure, geographical situation, solar orientation, wood type (softwood vs hardwood) and colour. In normal weather conditions:

• Vertical surfaces: every 3-5 years
• Horizontal surfaces: up to 2 years