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Two-components water-based polyurethane surfacer for aircraft interiors. FR4-45 is intended to correct surface defects such as pin holes on composite and thermoplastic substrates. Recommended for use in combination with Mapaero water-based topcoat FR2-55, FR6-55, FRC or DI-TEX.
Unit of Measure

Specifications

Type

 N/A Fire Retardant

Specifications

 N/A Qualified in accordance with:
Airbus: AIMS 04-08-001, ABS5650 A, CML 16-046, CML-04-BAM6
BMS 10-83 Type IX and Type IV
FMS 5520 class 2
C&D ZODIAC : CDM240-00, CDM240-01
Bombardier : DHMS C4.22

Meets the following requirements:
JAR/FAR Part 25 §25.853 (a) + (c/d)/Change 14/Amdt. 25-83

Color

 N/A Cream Sandy Beige Stone Gray White

Components

Base Component

 N/A FR4-45

Hardener/Catalyst Component

 N/A FR4-45

Thinner Component

 N/A Water

Physical Properties

Theoretical Coverage for 50 Microns (µm) (2 Mils) Dry (Base and Hardener Undiluted)

 N/A 6 m²/kg360 ft²/gal

Theoretical Coverage for 25 Microns (µm) (1 Mils) Dry (Base and Hardener Undiluted)

 N/A 12 m²/kg720 ft²/gal

Dry Film Weight

 N/A 2 g/m²

Volatile Organic Compounds (VOC) Volume as Per International Organization for Standardization (ISO 11890-1)

 N/A 25 g/L0.21 lb/gal

Volatile Organic Compounds (VOC) Volume as Per American Society for Testing and Materials (ASTM D 3960)

 N/A 50 g/L0.42 lb/gal

Shelf Life/Storage

 N/A 12 months for the base and hardener between 5 ºC and 35 ºC (41 ºF and 95 ºF) in full and sealed original packaging.

Gloss Level

 N/A Matt

Flash Point Base Temperature

 N/A > 100 ºC212 ºF

Flash Point Hardener/Catalyst Temperature

 N/A > 60 ºC140 ºF

Application Recommendations

Temperature Condition

 N/A 15 to 35 ºC59 to 95 ºF

Relative Humidity Condition

 N/A 20 to 80 %

Equipment Type

 N/A Gravity Compressed Air Gun Nozzle

Nozzle Size

 N/A 1.6 to 2.2 mm

Dry Film Thickness

 N/A 50 to 80 µm2 to 3.1 mil

Wet Film Thickness

 N/A 4.7 to 7.5 mil120 to 190 µm

Spray Gun

 N/A Follow requirements above and apply the product in crossed coats, pressure 3 bars (44 psi) ± 0.5 (7 psi) dynamic to achieve the desired thickness (approximately 2 crossed coats for 80 µm or 3.1 mils dry). To get a thicker coat (> 80 µm or 3.1 mils dry), let the first coat flash off 30 minutes before applying the second one (to obtain a matt appearance).

Number of Coats with a Brush (Fine Hairs)

 N/A 1

Equipment Cleaning

 N/A Clean equipment with water, then with a suitable cleaning thinner.

Note

 N/A Spray with dry, oil-free air.

Dry Time

Dry Time at 23 Degree Celsius (ºC) (73 Degree Fahrenheit (ºF)) Temperature (Dust Free)

 N/A 30 minutes

Dry Time at 23 Degree Celsius (ºC) (73 Degree Fahrenheit (ºF)) Temperature (Dry to Sand)

 N/A 3 hour

Dry Time at 40 Degree Celsius (ºC) (104 Degree Fahrenheit (ºF)) Temperature (Dry to Sand)

 N/A 1

Dry Time at 60 Degree Celsius (ºC) (140 Degree Fahrenheit (ºF)) Temperature (Dry to Sand)

 N/A 30 minutes

Dry Time at 80 Degree Celsius (ºC) (176 Degree Fahrenheit (ºF)) Temperature (Dry to Sand)

 N/A 15 minutes

Dry Time at 23 Degree Celsius (ºC) (73 Degree Fahrenheit (ºF)) Temperature (Fully Cured)

 N/A 7 days

Dry Time at 40 Degree Celsius (ºC) (104 Degree Fahrenheit (ºF)) Temperature (Fully Cured)

 N/A 3 days

Dry Time at 60 Degree Celsius (ºC) (140 Degree Fahrenheit (ºF)) Temperature (Fully Cured)

 N/A 12 hour

Dry Time at 80 Degree Celsius (ºC) (176 Degree Fahrenheit (ºF)) Temperature (Fully Cured)

 N/A 4 hour

Note for Dry Times

 N/A For 50-80 µm or 2 mils to 3.1 mils dry (120 µm to 190 µm or 4.7 mils to 7.5 mils wet).
For 50 µm (2mils), flash off 30 minutes to 1 hour at room temperature before oven curing.

Defects and Corrections

Defects and Corrections

 N/A In event of a defect, the FR4-45 primer can be slightly sanded with paper grade 240 to 400, before applying the same product or a water-based top coat.
The sanded top coat must be blown dried and cleaned with a lint free cloth dampened with isopropyl alcohol.

Packing

Packing

 N/A The base FR4-45 is available in 1 kg and 5 kg.
The hardener FR4-45 is available in 1 kg and 5 kg.
These products are not subject to IATA regulations for air transport.

Surface Preparation

Surface Preparation

 N/A The substrate should be sanded with sandpaper grade suitable:
  • P240 to P400 for thermoplastics;
  • P100 to P180 for Phenolic composites.
It must then be cleaned with a lint free cloth and an alcohol based cleaner such as Isopropanol.

Applications

Applications

 N/A Cabin Interiors

Warranty

Warranty

 N/A We guarantee our products against hidden defaults over material and preparation. Our Responsibility is limited to the obligation of freely replacing the defective material without there being a claim for any compensation. The advice we give is based on our experience but it might not be absolutely right. Consequently this does not imply our responsibility in case of inefficiency. Furthermore our company cannot be responsible for any material or corporal damages caused due to a misuse or mishandling of our products. Any concession to these clauses, to be valid, must be an official document issued by our offices and signed by our direction.