Product reference:
Product title:
Valid from:
Last reviewed:
Type
Suggested use
Immersion environments where superior resistance to chemical attack is required. VEF is suitable for many chemical environments within the full pH range, it has excellent resistance to demineralized water and good resistance to many solvents. It is also used in aggressive atmosphericor spillage conditions (bund areas) and potable water applications.
Health & safety
Before handling or using this product, the material safety data sheet should be read, and all precautions observed.
Chemical resistance
Refer to the chemical resistance list. Affected by some highly polar solvents and some solutions
exhibiting high pH at temperatures 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 CorrocoatSurface PreparationSP1.)Concrete: refer to Corrocoat SP5.
Application equipment
Airless pump of 45:1 ratio or greater. Fit leather and PTFE seal combination and remove all fluid filters. 10mm
diameter (3/8”) nylon lined hose with 6mm whip end, large
bore gunwith reverse clean spray tip. Typical tip size is 28 to 48thou with a 45° to 60° fan. Size of tip and fan angle will varydependent upon the nature of the work. Pressure to suit hose lengths and working conditions. (circa 200bar).
Brush application is not recommended.
Thinners
Polyglass VEF is adversely affected by the addition of solventsand their use is prohibited. Thinning can be achieved by the addition of no more than .25 gal (1 litre) of styrene monomer per 5.25 gal (20 litres) of Polyglass. It should be noted that dilution with styrene willaffect hold-upand chemical resistance.
Packaging
1 Gallon and 5 Gallon kits.
Storage life
Base and catalyst (Hardener) 6 months, stored at temperatures below 68°F (20°C) and 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
Std. Off White or Translucent Brown. Other colors are available on request but the addition of dyes adversely affects chemical resistance and air inhibition suppressant is required for color stability.
Theoretical spreading rate
54 sf per gallon at 30 mils (1.33m²/litre at 750 microns).
Volume solids
This material contains volatile liquid convertible to solids. Volume solids obtained will vary dependent upon polymerization conditions. Nominally 99% of the product is convertible to solid.
Specific gravity
Polyglass base: 0.04lbs/cubic inch (1.19 gms/cc). Hardener: .03lbs/cubic inch (1.07 gms/cc)
Catalyst type
Methyl Ethyl Ketone Peroxide type P2-45
Volume solids
100%.
Temperature limits
230°F (110°C) immersed. 329°F (165°C) non-immersed. No known lower limit.
Abrasion resistance
216 mg loss/1000 cycles/1000 gm load. (H18 wheel)
Overcoating
It is important to observe maximum overcoating times and note these will vary substantially with climatic conditions. Minimum, as soon as gel has occurred and while still tacky. Maximum, at 68°F (20°C) 48 hours. Strong ultra-violet/sunlight will substantially reduce overcoating time. Once maximum overcoating time has been reached, adhesion values attained by anysubsequent coat will reduce dramatically. Should this occur overcoating should be treated as a repair, with thecoating flash blasted to providea physical key. Styrene cannot be used to reactivate the surface of this product and may impair adhesion. Take care to avoid
contamination before application of subsequent coats. Ensure ventilation during cure.
Application
Dependent on intended use and site conditions, Polyglass VEF is normally applied direct to the surface wet on wet at films between 20-48 mils (500-1200 microns). Single coat applications are acceptable. Where logisticsdemand, primer PPA may be used or PPV fortemperatures over 185°F (85°C). For further details seePolyglass Application Data Sheet.
Recommended DFT
20-120 mils (500-3000 microns) dependent upon service environment. This material is a barrier coating and thickness needed is dependent upon service conditions.
Mixing ratio / mixing
98:2 base to hardener. For inhibitor use and mixing instructions refer to Polyglass Application Data Sheet.Adding inhibitor after the catalyst will ruin the product.
Pot life
Circa 50 minutes at 68°F (20°C) but may be varied by use of inhibitor or by special manufacture. For lowapplication temperatures, refer to Polyglass data sheet.
Practical spreading rate
43sf per gallon at 30 mils (1.06m2/litre at 750 microns). NOTE: This information is given in good faith, but rate may vary significantlydependent 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.
Mixing ratio
98:2 base to hardener, refer to Application Data Sheet for inhibitor levels.
Flash point
82°F (28°C).
Hardness
45 Barcol after full cure.
Elongation at break
0.6%.
Tensile strength
3874 psi (26.7 N/mm²).
Thermal coefficient of linear expansion
19.7 x 10-6/°C.
Thermal conductivity
0.398 W/m°K
Dielectric strength
18 – 25 x 10³ V/mm
Adhesive strength
> 10 MPa (ASTM D4541)
Cure time
With standard inhibitor level, tack free 6 hours, full cure 3-4 days at 68°F (20°C), but may be immersed in many environments after 24 hours.
Cleaning solvent
Methyl Ethyl Ketone, Methyl Iso Butyl Ketone – before gel.