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Type
Suggested use
Ideally suited for brush application to areas subjected to sea-water or other aqueous immersion. The coating also possesses good chemical resistance and when used at over 2mm thickness is cavitation resistant.
Limitations
The material does not adequately cure below 41°F (5°C). It may be applied at such temperatures, but a measure of post curing at 59°F (15°C) or above will be necessary to achieve optimum properties.
Health & safety
Health and Safety information should be read and complied
with, before handling this material. Avoid contact with skin or eyes. Do not ingest. Wear protective clothing and goggles. Ventilate confined spaces. The base and activator
materials are not particularly hazardous and are safe to use provided good hygiene and working practices are observed.
Surface preparation
For optimum performance under immersed conditions the
product should be applied to surfaces, grit blasted to SSPC-SP10 (ISO 8501-1 SA 2½) or equivalent. For full details refer to Corrocoat Surface Preparation SP1 or SP2.
Recommended DFT
1.0 to 3.0mm in multiple coats. 20 mils (500 microns) when applied under or over other Corrocoat products.
Pot life
1 hour 45 mins at 59°F (15°C) 1 hour 14 mins at 68°F (20°C). 40 mins at 77°F (25°C).
Practical spreading rate
42 sf per gal at 30 mils (1.05m2
/litre at 750 microns).
NOTE: This information is given in good faith, but rate
may vary significantly dependent upon environmental
conditions, the geometry and nature of work undertaken
and the skill and care of application. Corrocoat accepts
no responsibility for any deviation from these values
Specific gravity
0.04lbs/cubic inch (1.24 gms/cc).
Theoretical spreading rate
80 sf per gal at 20 mils (1.96m² per litre at 500 microns).
Elongation at break
Atmospheric conditions 1.3%.
Tensile strength
3900psi (274 kg/cm²) dependent upon cure state.
Temperature limits
230°F (110°C) immersed. 346°F (175°C) non-immersed. No lower limit.
Abrasion resistance
255mg. Loss 1000 cycles/1000 gm load H18 wheel.
Mixing ratio
98:2 base to catalyst.
Hardness
32 Barcol (approximate)
Thermal conductivity
3.98 W/m°K
Practical spreading rate
64 sf per gal at 20 mils (1.57m²/litre at 500 microns). NOTE:This information is given in good faith but may vary dependent upon environment conditions, the geometry and nature of work undertaken and the skill and care of application. Corrocoat accepts no responsibility for any deviation from this value.
Curing times
In order to achieve the full properties of this material, a period of 3 days at 68°F (20°C) should be allowed before service. Where chemical or erosive forces are likely to be encountered a period of 7 days should be allowed. However,due to the cure action of this product, it can be put to light aqueous service as soon as the product has gelled. Thisshould generally be in accordance with the minimum overcoating time. Product will then continue to cure in service.
Time to achieve full cure
7 days at 68°F (20°C) or 4 days at 86°F (30°C) NOTE: Cure below 50°F (10°C) will be slow, exposure to higher temperatures 59-95°F (15-35°C) will improve the rapidity and degree of cure achieved. High humidity willextend cure times.
Cleaning fluid
Practical spreading rate
Thinners
The product should not require thinning. The use of solvent thinners can lead to solvent entrapment in the film, which will adversely affect performance.
Mixing ratio
100 pbw base to 36 pbw activator and where required adhesion promoter 2 pbw to mixed material.
Mixing procedure
The material is supplied in kits consisting of the base component (large tin) together with an appropriate amount of activator. An additional component (Adhesion Promoter),can also be
supplied. Mix the base and activator components thoroughly, until the material is homogenous in color and consistency. Then immediately prior to application the Adhesion Promoter should be added and mixed well.
Application equipment
Brush.
Application
Multiple coats should be applied, until a minimum DFT of 34 mils (850 microns) has been achieved. Runs and sagsshould be avoided and removed before overcoating
Thinners
DO NOT THIN.The addition of Styrene may substantially affect the chemical resistance of this product, particularly where post curing is not carried out.
Packaging
1 Gallon and 5 Gallon Kits.
Storage life
6 months stored at temperatures below 68°F (20°C) and away from heat sources and direct sunlight. Frequenttemperature cycling will shorten storage life. See other information for extension of shelf life.
Color availability
Black only.
Theoretical spreading rate
40 sf per gal (1 m²/litre) @ 1mm
Volume solids
98% (calculated).
Flash point
82°F (28°C).
Catalyst type
Methyl Ethyl Ketone Peroxide Corrocoat Type P2.
Overcoating
May take place as soon as previous coat has gelled sufficiently to resist movement of next application and while still tacky. Maximum over-coating without treatment: 72 hours: Shorter at ambient temperatures above 86°F (30°C). Once the maximum overcoating time has been reached, adhesion values attained by any subsequent coat will reduce dramatically. It is important to observe maximum overcoating times and note these will vary with climatic conditions. Any further application of coating at this juncture should be treated as a repair, with the surface flash blasted to provide a physical key.
Curing time
At 68°F (20°C), 90% cure will be attained within 8 hours. Full cure for chemical resistance will be 6 days. Cure time may be shortened and a beneficial increase in final cure may be attained by heat treatment. ConsultCorrocoat USA for specific information.Although not fully cured, after gel has occurred, this product may be immersed in some environments without detriment to the coating.
Cleaning solvent
Methyl Ethyl Ketone, Methyl Iso Butyl Ketone – before gel.
Elongation
0.9%.
Minimum overcoating times
As this product contains no solvent, minimum overcoating time is not important except in avoiding disruption and drag of the previous coating.Short overcoating times as opposed to long overcoating times are recommended for optimum intercoat adhesion properties. In order to check that surface drag is not likely to occur, a finger or thumb can be used to pull the surface and where movement is observed, a longer period should be allowed before overcoating. As a guide, the minimum overcoating time will generally be as follows:TemperatureTime 54°F (12°C) 12 hours68°F (20°C) 10 hours86°F (30°C) 8 hours
Maximum overcoating
It is essential, to achieve intercoat adhesion, the maximum overcoating time is strictly adhered to. The maximum overcoating times are as follows:TemperatureTime 54°F (12°C) 72 hours68°F (20°C) 48 hours86°F (30°C) 24 hours
Storage life
2 years minimum in unopened tins, stored at 41-104°F (5-40°C).
Clean-up solvent
A blend of xylene/n-Butanol at 4:1 v/v may be used. Alternatively, any proprietary epoxy clean-up solvent may be used.