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MIROTHANE PU 5545 Clear Marine Grade Sealer

MIROTHANE PU 5545 is a premium, two pack, clear, polyurethane sealer that provides an excellent sanding base for clear polyurethane topcoats. Fast drying, with excellent free sanding means reduced  time between coats. Its high build properties result in a fuller finish with excellent filling of open timber.

  • Good build enhances the final finish by sealing, filling and covering the fibres of the the substrate
  • Excellent flow and levelling
  • Easy sanding ensures time to sand and the best possible surface tor topcoating
  • Low yellowing, suitable over light coloured wood/veneers and liming stains when mixed with one of the low yellowing MIROTHANE Part B Hardeners
Milky in can dries clear
Very Good
Vertical Hold Up
Solvent Resistance
Very Good
Water Resistance
Levelling & Flow
Sink Back
6-7m2 per litre at 150 micron wet film build. This is dependent on the application equipment / gun set up and the article being coated
Dry Time
Refer to Technical Data Sheet
Clean Up
Clean all equipment using MIROSOL 1222 or 1286 Thinner
4L & 20L
Product Code
  1. Suction Gun - Use 1.5 to 2mm (59-79 thou) orifice with 350-400kpa (50-55 psi).
  2. 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.
  3. Airless Spray - Use 0.23 to 0.33mm (9-13 thou) orifice, 15cm fan (dependent on job) with regulated pump pressure of 350-400kpa (50-55 psi).
  4. Air Mix Guns - Settings similar to airless spray with the air-assisted regulator pressure at 70-90kpa (10-15psi).
  • Interior use only. Commercial joinery, wall panelling, domestic furniture, high rise office and hotel fit outs and interior marine fit-outs.