The makers of Galaxy Hi-Tech Coatings proudly introduce solvent free epoxy coating system. These are characterized by thick non-porous and highly resistant films as compared to conventional solvent containing paints which give thin films with inherent porosity. Solvent free epoxy coatings enjoy increasingly wider applications, not only due to better performance but also due to lower cost per unit film thickness and freedom from fire or pollution hazards.

Coal tar offers lower cost so that the combination can be made use of, in applications where an entirely pure epoxy coating would be too costly. There are also advantages in terms of quality, namely better resistance to water, dilute acids and certain solvents. Moreover, this is a advanced two component system

Application

1.  Surface Preparation:

Mild steel or any other metal surface requires thorough sand blasting to ensure complete removal of rust particles. The surface must also be free from traces of grease, oil or moisture.

Concrete surfaces should be free from laitance and dust by sandblasting if possible; thorough abrading with a hard wire brush can be restored to, though it is not as efficient. If these methods are not feasible, chemical etching using 15% hydrochloric acid solution should be employed. The solution is brush applied over the surface liberally and left in contact for 15 minutes. This is then washed off with plenty of water followed by thorough drying with hot air.

2.  Procedure:

a) Simple solvent free coatings.

One coat and two top coats of the above Gal-Tech CT Epoxy system is suggested for protective treatment and this would give a thickness ranging between 350 to 400 microns depending on the degree of roughness in the surface. In applying two or more coats by a brush, the pervious coat must be tack free when the next coat is applied. If this is not done, satisfactory adhesion between the two layers will not be obtained.

b) Protective lining with glass Cloth reinforcement

Gal-Tech CT Epoxy can be used for lining with glass Cloth reinforcements.

Epoxy compatible glass cloth can be used for such purposes. Highly

recommended for structural beams, roof gardens, sumps and water

retaining floors. This protective treatment would give a thickness ranging

between 450-500 microns depending on the degree of roughness in the surface

c) Flooring and Mortar lining

Tar / epoxy systems are also suitable for industrial flooring and as a lining for vertical surfaces.

3. Curing

This is a self curing product, complete curing of the system takes place at room temperature. Please note that temperature should not be below 20°C when the curing is carried out. After 72 hours of curing, 95% of total mechanical strengths are developed.

4. Various applications:

  • Waterproofing: Three coats of this system along with glass cloth reinforcement gives excellent water proofing properties by making the structure impervious. For exposed areas e.g. terrace/roof/slab etc. it is advisable to protect the coating by applying cement mortar screed. Ideal for water proofing of water retaining structure terrace, canopy, Invert slab, sunken slab, basement and underground structures.
  • Protection of mild steel and concrete structures of bridges, components of industrial equipments, swimming pools, ships etc.
  • Effluent treatment tanks in petrochemical, pharmaceutical, food, plastic, organic intermediates, pesticides and heavy inorganic industries.
  • Pipe coatings & Motor vehicle chassis.
  • Protection of concrete from various chemical hazards.

Safety:

Epoxy resins and Hardeners are chemicals and hygienic procedures should be followed while handling them. Direct contact of resin and hardener with the skin must be avoided.

Properties:

Mix ratio Hardener       100 parts by weight (pbw)

Resin           100 pbw

Appearance Black
Mix viscosity 2000-5000 mPas at 25°C
Pot life 30 minutes at 25°C for 500 gm mix
Coverage 3-4 sq.m. area per kg of mix per coat