Urochem 303

HIGH SOLIDS EPOXY COATING

DESCRIPTION

Urochem 303 is a twin pack, solvent based, high solids epoxy coating cured with a cycloaliphatic cross-linking agent. Although of low viscosity and easy to apply it rapidly cures to form an exceptionally tough flexible film with very good abrasion and chemical resistance. Its low solvent content ensures that maximum build is achieved with each coat. Urochem 303 is available in a range of colours and provides a coating which is both protective and decorative.

SURFACE PREPARATION

• As with all epoxy systems, surface preparation is of prime importance. Ensure the substrate is clean, sound, and dry, remove all grease, oil, dust, laitance, etc. Cut back to a sound substrate before undertaking any remedial repairs with Urochem 305 Epoxy Patching Compound.

• Wire brushing, acid etching, sand or highpressure water blasting may be required to remove any laitance and/or curing compounds. Attention to blowholes and omegas is essential for the satisfactory performance of the coating.

• Steel surfaces should be clean, sound, and dry, and free of grease,any oils, and mill-scale.

PRIMING

Prime steel with Urochem 617 Zinc Rich Primer. Concrete may be primed with Urochem 307 clear, or if sound, dense and well cured Urochem 303 may be applied directly.

PRODUCT APPLICATION

As an impervious, resilient, and chemically resistant floor or wall coating in manufacturing plants, garages, factories, food processing plants, laboratories, and workshops.

MIXING

Mix the base well, add the activator to the base and mix with a flat paddle until both materials are evenly dispersed and form a uniform colour. Use immediately after mixing.

APPLICATION

Urochem 303 may be applied by brush, roller, or airless spray. After application of the first coat ensure there are no pin holes or missed areas. Allow a minimum of 6 hours and a maximum of 24 hours between coats. For best protection and finish, a two-coat application is recommended.

CLEANING

Clean all tools and equipment immediately after use with Urochem 901 as the cured material is very difficult to remove.

SAFETY

Contact with the skin should be avoided by wearing gloves, eye protection and protective clothing. In case of eye contact wash well and obtain medical advice. Flammable and contains organic solvents. Remove all ignition sources from the work area and use only in well-ventilated areas.

TYPICAL PROPERTIES
Mixing Ratio
Mix as supplied (4:1)
Pot Life
30 min @ 25° C
Tack Free
6 Hours
Full Cure
7 Days
Colour
Grey – Colours available on order
Movement accommodation
+ 25%
Chemical resistance
Most dilute chemicals, fuels and oils
Density
1.28
Spread rate
2 – 4 m² per Lt / coat
Overcoat times
Min 6 Hrs / Max 24 Hrs
Application Temp.
5 – 35°C
Shelf Life
12 Months
Service Temp.
70°C wet / 120°C dry
Pack Size
2 Lt & 5 Lt Kits
Cleaning
Urochem 901
Storage
Store in a cool dry place