Marathon IQ

Product description

A two component, virtually solvent free, abrasion resistant epoxy coating.

Recommended use

Steel subject to exstreme mechanical exposure - such as underwater areas of ice going vessels including ice breakers. Suitable for use as a dielectric shield around impressed current cathodic protection (ICCP) anodes on ships. Certificate: Ice Class: Recognised low friction surface coating (LR).

Film thickness and spreading rate

                                                                         Minimum               Maximum             Typical             For ice resistance

Film thickness, dry (µm)                              250                          700                        300                          500

Film thickness, wet (µm)                             250                          700                        300                          500

Theoretical spreading rate (m²/l)               3,9                           1,6                          3,3                           2,0

Physical properties

Colour Red

Solids (vol %)* 98 ± 2

Flash point 55ºC

VOC 30 gms/ltr UK-PG6/23(97). Appendix 3

Gloss Glossy

Gloss retention Fair

Water resistance Excellent

Abrasion resistance Excellent

Solvent resistance Excellent

Chemical resistance Excellent

Flexibility Fair

Compatibility with

cathodic protection Excellent

*Measured according to ISO 3233:1998 (E)

Surface preparation

All surfaces should be clean, dry and free from contamination. The surface should be assessed and treated in accordance with ISO 8504.

Bare steel

Cleanliness: Blast cleaning to min. Sa 2 ½ (ISO 8501 1:2007). Roughness: use suitable abrasives to achieve Grade Coarse G (85 - 130 µm, Ry5) (ISO 8503-2).

Other surfaces

The coating may be used on other substrates. Please contact your local Jotun office for more information.

Condition during application

The temperature of the substrate should be minimum 10°C and at least 3°C above the dew point of the air, temperature and relative humidity measured in the vicinity of the substrate. Good ventilation is required in confined areas to ensure proper drying. The coating should not be exposed to oil, chemicals or mechanical stress until cured.

Application methods

Spray Two-comp. heated airless spray. If permitted, thin 10%, to use normal airless spray (However, the abrasion resistance may be reduced. No thinning accepted when used for ice resistance)

Brush Recommended for stripe coating and small areas, care must be taken to achieve the specified dry film thickness.

Application data

Mixing ratio (volume) 2:1

Mixing 2 parts Comp. A (base) to be mixed thoroughly with 1 part Marathon IQ/IQ GF, Comp. B (curing agent)

Pot life (23°C) 30 minutes (Reduced at higher temperatures).

Thinner/Cleaner Jotun Thinner No. 17, max 10%.

Guiding data airless spray

Pressure at nozzle 20 MPa (200 kp/cm², 2800 psi.).

Nozzle tip 0.63-1.09 mm (0.025-0.045")

Spray angle 40-80°

Filter Check to ensure that filters are clean.

Note Thinning will prolong the drying and curing times.

Drying time

Drying times are generally related to air circulation, temperature, film thickness and number of coats, and will be affected correspondingly. The figures given in the table are typical with:

• Good ventilation (Outdoor exposure or free circulation of air)

• Typical film thickness

• One coat on top of inert substrate

1. The paint has to be applied in one coat. If the paint film is too thin, roughening of the surface by blasting to Grade Coarse G is needed.

2. The surface should be dry and free from any contamination prior to application. If the maximum dry to recoat time is exceeded, please contact your local Jotun office for more information.

The given data must be considered as guidelines only. The actual drying time/times before recoating may be shorter or longer, depending on film thickness, ventilation, humidity, underlying paint system, requirement for early handling and mechanical strength etc. A complete system can be described on a system sheet, where all parameters and special conditions could be included.

Typical paint system

For corrosion protection, on Sa 2½:

Marathon IQ 1-2 x 300 µm (Dry Film Thickness)

For maximum ice resistance, on Sa 2½:

Marathon IQ 1 x 500 µm (Dry Film Thickness)

As a dieletric shield around ICCP anodes on ships, on Sa 2½:

Marathon IQ 1000 µm total

applied unthinned in 2-3 coats (depending on method of application)

If overcoated with antifouling, a tie-coat is recommended.

Other systems may be specified, depending on area of use

Storage

The product must be stored in accordance with national regulations. Storage conditions are to keep the containers in a dry, cool, well ventilated space and away from source of heat and ignition. Containers must be kept tightly closed.

Handling

Handle with care. Stir well before use.

Packing size

15 litre unit: 10 litres Comp. A (base) in a 20 litre container and 5 litres Marathon IQ/IQ GF, Comp. B (curing agent) in a 5 litre container.

Packing may vary from country to country according to local requirements.

Health and safety

Please observe the precautionary notices displayed on the container. Use under well ventilated conditions. Do not breathe or inhale mist. Avoid skin contact. Spillage on the skin should immediately be removed with suitable cleanser, soap and water. Eyes should be well flushed with water and medical attention sought immediately.