POLYGLASS
Polyglass VEHA
Product reference: 2/25
Product title: Polyglass VEHA
Valid from: 9th July 2018
Last reviewed: May 2019
Type: A two-pack, Vinyl ester/acrylic glass flake for hand application. Except for viscosity this product has similar properties to the spray applied version of Polyglass VE/VEF.
Suggested use
Stripe coating and areas where spray application is impractical.
Temperature Limits
230°F (110°C) immersed. 365°F (185°C) non-immersed. No known lower limit.
Health & safety
For optimum performance of these products under immersed conditions, grit blast steel to SSPC-SP10 (ISO standard 8501-1 Sa 2½ near 3) or equivalent, prior to application.For full details refer to Corrocoat Surface Preparation SP1.
Surface preparation
For optimum performance of these products under immersed conditions, grit blast steel to SSPC-SP10 (ISO standard 8501-1 Sa 2½ near 3) or equivalent, prior to application.For full details refer to Corrocoat Surface Preparation SP1.
Mixing ratio
Polyglass VEHA can be catalysed by a 2% weight addition of Corrocoat catalyst type P2.
Pot life
60 minutes at 68°F (20°C). Pot life will reduce substantially with increase in temperature and extend with decrease in temperature. Inhibitor is available to extend pot life for hot climates. Mix inhibitor well andbefore catalyst.
Thinners
THIS PRODUCT SHOULD NOT BE THINNED. The use of solvent thinners will adversely affect performance and under no circumstances must they be used.
Hardness
32 Barcol (approximate).
Elongation
0.9%.
Temperature limits
230°F (110°C) immersed. 347°F (175°C) non-immersed.
No lower limit.
Overcoating
It is important to observe maximum overcoating times and note these will vary significantly with climatic conditions. Overcoating may take place as soon as the previous coat has gelled sufficiently to bear the weight of the next coat and whilst still tacky. Maximum overcoating interval is 48 hrs for VEHA at 68°F (20°C). For longer intervals than this refer to Corrocoat TSD for advice. Best intercoat adhesion characteristics are obtained by short overcoating intervals.Refer to main product data sheets for full information.
Curing times
Tack free: Approx. 4 hours at 68°F (20°C). Full Cure: 3-4 days at 68°F (20°C) Minimum cure before immersion: 24 hours at 68°F (20°C)
Mixing ratio
98:2 parts base to hardener. For mixing instructions use the Polyglass Application Data Sheet. This product behaves in a similar manner, but the addition of inhibitor should only be made after first checking the suitability with Corrocoat.
Application equipment
Brush or trowel.
Packaging
1 Gallon and 5 Gallon Kits
Application
When used alone two or more coats of Polyglass VEHA should be applied until a minimum DFT of 26 mils (650 microns) has been achieved, over thickness is not detrimental. When used as a stripe coat a single layer of circa 300um should beapplied, or as otherwise specified. (See below for overcoating intervals.)
Flash point
79°F (26°C).
Catalyst type
Methyl Ethyl Ketone Peroxide Corrocoat Type P2-45
Flash point
79°F (26°C).
Cleaning solvent
Use Methyl Ethyl Ketone, Acetone or Methyl Iso ButylKetone before gelation occurs.
Cure 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. Consult
Corrocoat 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.
Mixing procedure
Material is supplied in kits, each consisting of the base component (large tin) together with the appropriate amount of catalyst (plastic bottle). Add 1 bottle of catalyst to a tin of base material and agitate with a mechanical mixer for 2 minutes. Ensure all material is thoroughly mixed especially the bottom corner of tin.
Volume solids
This material contains volatile liquid convertible to solids. Actual volume solids obtained will vary dependent upon polymerization conditions. Nominally 99% of the contents are convertible to solid.
Theoretical spreading rate
80 sf per gal at 20 mils (2.0m²/litre at 500 microns)
Practical spreading rate
65 sf per gal at 20 mils (1.6m2/litre at 500 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.