MIROTONE PU polyurethane clear furniture lacquer application guide
This application guide will provide information on the application of MIROTHANE PU clear furniture lacquer.
Health and Safety
before applying any of our products please consider your safety and the safety of others. The Paint Factory highly recommends reading the Safety Data Sheet on this product which you can do on the Data Sheets Page. Always ensure you are wearing the right Personal Protective Equipment and consider the health of others and the environment.
Application
Step 1: Surface preparation
Surface must be free from dust, grease, dirt and all contaminants. MIROSOL 1231 Wax & Grease remover can be used to wash the surface to remove wax and grease. Fill all defects with a water based wood filler (i.e. cracks, holes etc.) or fill open grain woods if a full high build finish is required.
Step 2: Sanding for sealer
Sand wood with 180-240 grit paper. Sand MDF with 240-320 grit paper. Remove all dust using an air gun and clean lint free cloth.
Step 3: Stain if needed
If required, prepare and stain substrate per the directions on the MIROSTAIN product data sheet.
Step 4: Sealer application
Economical System
MIROTHANE PU 5535 MIROTHANE PU 5588 MIROCAT PC 3241, 3244 |
Premium System
MIROTHANE PU 5545 |
MIROTHANE PU 5577 Sun-Shield
MIROTHANE PU 5500 ISOLATOR MIROTHANE PU 5577 MIROTHANE PU 5545 with MIROSHIELD 3900 UV absorber additive |
Coatings systems using multiple coats of sealer will increase the risk of the dry film appearing milky (especially when applied over dark stains or wood) and may result in white marking if the film is damaged by sharp objects.
Step 5: Sanding for topcoat
Allow to dry per the technical data sheet and sand with 280-320 grit paper just prior to top coating. Use 400-500 grit paper where a high gloss finish is being applied. Remove all sanding dust.
Step 6: Toning if needed
If required to provide extra colour depth, add up to 10% by volume MIROSTAIN 2013 Dye Stain or unreduced MIROSTAIN 2616 Pigment Stain to the topcoat. Apply in light even coats over the sealed wood.
Step 7: Topcoat
Economical System
MIROTHANE PU 5588 |
Premium System
MIROTHANE PU 5555 |
MIROTHANE PU 5577 Sun-Shield
MIROTHANE PU 5577 |
The following application technique is recommended for full gloss coatings:
- Apply a light ‘tack’ coat (100-125 WFT)
- Allow 1 – 5 minutes to flash off (depending upon temperature)
- Apply a second even wet coat.
- Apply a light ‘tack’ coat (100-125 WFT)
- Allow 1 – 5 minutes to flash off (depending upon temperature)
- Apply a second even wet coat.
Step 8: Buffing
Allow the topcoat to dry for a minimum of 18 hours at 20°C before buffing. Buff / polish by hand or machine with a polish recommended for high gloss polyurethane finishes.
Application Methods
Suction Gun
Use 1.5 to 2mm (59-79 thou) orifice with 350-400kpa (50-55 psi).
Pressure Pot
Use 1.5 to 2mm (59-79 thou) orifice with pressure pot air-cap. Gun pressure 350-400kpa (50-55 psi) and a pot pressure of 45kpa (6 psi) max.
Airless Spray
Use 0.23 to 0.33mm (7-13 thou) orifice, 15cm fan (dependent on job) with regulated pump pressure of 350-400kpa (50-55 psi).
Air Mix Guns
Settings similar to airless spray with the air-assisted regulator pressure at 70-90kpa (10-15psi).
Use 1.5 to 2mm (59-79 thou) orifice with 350-400kpa (50-55 psi).
Pressure Pot
Use 1.5 to 2mm (59-79 thou) orifice with pressure pot air-cap. Gun pressure 350-400kpa (50-55 psi) and a pot pressure of 45kpa (6 psi) max.
Airless Spray
Use 0.23 to 0.33mm (7-13 thou) orifice, 15cm fan (dependent on job) with regulated pump pressure of 350-400kpa (50-55 psi).
Air Mix Guns
Settings similar to airless spray with the air-assisted regulator pressure at 70-90kpa (10-15psi).
Source
You can download the source of this information in original .pdf format by clicking the link below.
We would like to thank Mirotone NZ Ltd for providing us with this information.
Download source
We would like to thank Mirotone NZ Ltd for providing us with this information.
Download source