Corroglass 652

Product reference: 1/12

Product title: Corroglass 652

Valid from: 4th October 2007

Last reviewed: May 2019

Type: Corroglass 652 is a vinyl ester Glassflake coating cured by the addition of
organic peroxide.

Suggested use

Light duty immersion and atmospheric conditions or as a
surface veil for heavy duty grades.


Not suitable for some highly polar solvents.

Health & safety

Refer to the chemical resistance list. Affected bysome
highly polar solvents and some solutions having a high pH
above 122°F (50°C).

Surface preparation

Metals: Grit blast to SSPC-SP10 (ISO standard 8501-1 Sa
2½ near 3) or equivalent. (For full details refer to
Corrocoat Surface Preparation SP1.)
Concrete: refer to Corrocoat SP5.
Coating of the substrate should then take place as soon
as possible. Corroglass 652 can be applied directly to the
substrate, however, it is more often applied as part of a
600 series system along with Corroglass 602 and 632, in
which case Corroglass 632 is generally used as the

Application equipment

Brush, Roller, Trowel or Special Spray


As a surface veil in a single coat of approximately 8
mils (200 microns) or as required.
When used direct to substrate, use multiple coats to achieve desired thickness. A minimum DFT of 14 mils (350 microns) is
When applying, each subsequent coat of material should be
of a different color to the previous one to ensure full and
even coverage. Only the recommended dye for the product
should be used. Dyes can affect chemical and corrosion
resistance in some environments and the advice of Corrocoat
USA should be sought where the material will work close to
either its chemical resistance or temperature limit. In some
environments, dyes are not color stable and a change in
color may take place in service which is not detrimental to
coating performance.

Mixing ratio

Corroglass 652 can be catalyzed within the ratios of 100:1
parts base to catalyst by weight to 100:3 parts base to
catalyst by weight. The ratio should always be within these
limits, 2% addition of catalyst being the norm with a reduction
being made for high ambient temperatures.


Weigh out only the proportion of material which can be used
within the pot life and place into a suitable mixing container.
Measure the correct proportion of catalyst for the amount of
base and carefully add this to the base using a suitable clean
implement. Mix thoroughly then add dye where necessary
and mix to an even color.

Pot life

25 to 30 minutes at 68°F (20°C). Pot life will be shorter at
higher temperatures and longer at lowertemperatures.Where
higher temperaturesareencountered,refrigeratematerialbeforeuse
or seek the advice of Corrocoat USA for availability of
inhibitor or material with longer pot life.


Corroglass 652 is adversely affected by the addition of
solvents and their use is prohibited. Styrene may be used
as a thinner up to a maximum addition level of 5%, but the
addition of Styrene may substantially affect the chemical
resistance of this product. No other diluents or thinner
should be used. The use of acetone or similar thinners in
Corroglass will severely affect productperformance.


1 Gallon and 5 Gallon Kits

Storage life

Base and catalyst (Hardener) 6 months, stored at
temperatures below 68°F (20°C), away from heat sources
and out of direct sunlight. Frequent temperature cycling will
shorten storage life. See ‘other information’ in the
Corrocoat ‘Tech Manual’ for extension of shelf life.

Color availability

Pigmented White. Dyes can be used to effect color change.

Recommended DFT

0.5 to 1.0mm in multiple coats. Or as advised.

Theoretical spreading rate

32sf per gallon at 40 mils dft (1.25kg/m² at 1mm thickness)

Volume solids

99.5% solvent free.

Practical spreading rate

25 sf per gallon (1.3kg/M2 at 1mm).
Note: This information is given in good faith but may increase 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 these values.

Specific gravity

0.04lbs/cubic inch (1.18 gms/cc).

Flash point

100°F (38°C)

Catalyst type

Methyl Ethyl Ketone Peroxide: Corrocoat Type P2.

Mixing ratio

100:1 to 100:3 base to catalyst


42 Barcol (approximate).



Dielectric strength

16 x 103 V/mm. Arc resistance 40 seconds minimum

Temperature limits

230°F (110°C) immersed as surface veil.
194°F (90°C) immersed. 356°F (180°C) non-immersed.


May take place as soon as previous coat has gelled
sufficiently to resist movement of next application and while
still tacky. Maximum overcoating without treatment: 3 days.
Shorter at ambient temperatures above 86°F (30°C).

Cleaning fluid

Acetone or Methyl Ethyl Ketone before gel.

Cure time

At 68°F (20°C), 90% cure will be attained within 10 hours. Full
cure for chemical resistance will be between 6-8 days. Full
cure times will be shorter at higher temperatures and longer
at lower temperatures.
Although not fully cured, after gel has occurred, this product
may be immersed in some environments with only slight
detriment to the immediate surface of the coating, the cure
process continuing even when immersed.