Product reference: 3/67

Product title: Corrocoat Fibrecoat

Valid from: 19th May 2017

Last reviewed: May 2019


A glass fibre reinforced vinyl ester glass-flake lining. This product is a high performance vinyl ester lining containing both glass fiber and glass flake.

Suggested use

As a rehabilitation and high performance lining for thinned/ corroded pipes and where additional tensile properties are required, Corrocoat Fibrecoat may be applied in single or multiple layers at up to 118 mils (3000 microns) per coat.

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 having a high pH above 122°F (50°C).

Surface preparation

Metals: The surface must be decontaminated, degreased and loose materials removed from the surface. Where possible and for optimum performance, grit blast to SSPCSP10 (ISO standard 8501-1 Sa) or equivalent. (For full details refer to Corrocoat Surface Preparation SP1.)

Application equipment

Airless pump of 45:1 ratio or greater. Fit leather and PTFE seal combination and remove all fluid filters. Fibrecoat is designed to be applied using the Agmec Pipe-sprayer.Refer to Corrocoat Technical Services for further instructions.Brush applicationis not recommended.


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.

Storage life

Base and catalyst (Hardener) 6 months, stored at temperatures below 68°F (20°C), away from heat sourcesand 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

13 sf per gal at 118 mils (0.33m²/litre at 3000 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.

Practical spreading rate

10 sf per gal at 118 mils (0.25m²/litre at 3,000 microns). NOTE: This information is given in good faith but rate may vary significantly dependent upon environmental conditions, the geometry, and the nature of work undertaken and theskill and care of application. Corrocoat accepts no responsibility for any deviation from this value.

Specific gravity

Corrocoat Fibrecoat base: 0.04lbs/cubic inch (1.11 gms/cc). Hardener: 0.03lbs/cubic inch (1.07 gms/cc).

Catalyst type

Methyl Ethyl Ketone Peroxide, type P2-45.

Curing time

With standard inhibitor level, tack free circa 6 hours, full cure 3-4 days at 68°F (20°C), but may be immersed in many environments after 24 hours.

Cleaning fluid

Methyl Ethyl Ketone, Methyl Iso Butyl Ketone – before gel.


Dependent on intended use and site conditions, Corrocoat Fibrecoat is normally applied direct to the surface wet on wet at films >118 mils (3000 microns). Single coat applications are recommended

Recommended DFT

Greater than 118mils (3000 microns) dependent upon duty and environment. This material is a barrier coating and the thickness needed is dependent upon serviceconditions and the existing condition of the substrate

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 2 hours at 68°F (20°C) but may be varied by use of inhibitor or special manufacture for low applicationtemperatures, refer to Polyglass Application Data Sheet.


Corrocoat Fibrecoat is adversely affected by the addition of solvents and their use is prohibited. Thinning can be achieved by the addition of no more than 0.25 gal (1 liter)of styrene monomer per 5.25 gal (20 liters) of base. It should be noted that dilution with styrene mayaffecthold upand chemical resistance.


1 Gallon and 5 Gallon Kits

Mixing ratio

98:2 base to hardener, refer to Application Data Sheet for inhibitor levels.

Flash point

82°F (28°C).


45 Barcol after full cure.

Cathodic disbondment



> 10 MPa (ASTM D4541).

Temperature limits

194°F (90°C) immersed. 320°F (160°C) non-immersed. No known lower limit.

Abrasion resistance

137 mg loss/1000 cycles/1000 gm load. (H18 wheel)


It is important to observe maximum over coating 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/sunlightwill substantially reduce over coating time. Once maximumover coating time has been reached, adhesion values attained by any subsequent coat will reduce dramatically. Should this occur over coating should be treated as a repair,with the coating flash blasted to provide a physical key. Styrene cannot be used to reactivate the surface of thisproduct and may impair adhesion. Take care to avoidcontamination before application of subsequent coats. Ensure ventilation during cure.