Penguard Express

Product description

Penguard Express is a fast drying, high solids two-pack epoxy coating which may be applied in high film thickness and at lower temperatures.

Recommended use

As an anti corrosive primer and/or intermediate coating for corrosion protection of steel and other substrates in athmospheric exposure where fast dry-to-recoat and/or dry-to-handle times are desired. Can be used alone or in various systems of primers and topcoats.

Film thickness and spreading rate

                                                                           Minimum               Maximum                Typical

Film thickness, dry (µm)                                  75                            250                         125

Film thickness, wet (µm)                                100                          340                          170

Theoretical spreading rate (m²/l)                  9,9                             3                             5,9

Physical properties

Colour Grey, Red, Buff, Light Red, Grey XO

Solids (vol %)* 74 ± 2

Flash point 32ºC ± 2 (Setaflash)

VOC 230 gms/ltr UK-PG6/23(97). Appendix 3

Gloss Flat

Gloss retention Fair

Water resistance Very good

Abrasion resistance Very good

Solvent resistance Excellent

Chemical resistance Excellent

Flexibility Good

*Measured according to ISO 3233:1998 (E)

Note that primers used as the final coat may fade and chalk in time when exposed to sunlight and weathering effects. Colour may vary from batch to batch. If exact match to colour standards and long term cosmetic performance is needed please see our range of topcoats and finishes.

Hong Kong rules: Category of paints - Other vessel coatings; VOC 260 gms/ltr HK EPD method (Ready to use); Exempt compound - N/A; Specific gravity: 1.51 kg/ltr (A+B); Both VOC and Specific gravity values provided are typical values, and will vary according to colour chosen.

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 Sa 2½ (ISO 8501-1:2007). Roughness: using abrasives suitable to achieve grade Fine to Medium G (30-85 µm, Ry5) (ISO 8503-2)

Shopprimed steel

Clean, dry and undamaged approved shopprimer.

Coated surfaces

Clean, dry and undamaged compatible primer. Please contact your local Jotun office for more information.

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 -5°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 Use airless spray

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

Application data

Mixing ratio (volume) 4:1

Mixing 4 parts Comp. A (base) to be mixed thoroughly with 1 part Penguard Express, Comp. B (curing agent) for 10 min prior to use.

Pot life (23°C) 2 hours. (Reduced at higher temp.)

Thinner/Cleaner Jotun Thinner No. 17

Guiding data airless spray

Pressure at nozzle 15 MPa (150 kp/cm², 2100 psi)

Nozzle tip 0.46 - 0.69 mm (0.018-0.027")

Spray angle 40 - 80°

Filter Check to ensure that filters are clean.

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. Provided the surface is free from chalking and other contamination prior to application, there is normally no overcoating time limit. Best intercoat adhesion occurs, however, when the subsequent coat is applied before preceding coat has cured. If the coating has been exposed to direct sunlight for some time, special attention must be paid to surface cleaning and mattening/removal of the surface layer in order to obtain good adhesion.

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.

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

16 litres Comp. A (base) in a 20 litre container and 4 litres Penguard Express, Comp. B (curing agent) in a 5 litre container and

4 litres Comp. A (base) in a 5 litre container and 1 litre Penguard Express, Comp. B (curing agent) in a 1 litre container.

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.