Perma Master Pitch

TWO-COMPONENT EPOXY COAL TAR COATING
DESCRIPTION

Perma Master Pitch is a two component liquid epoxy resin modified with refined coal tar pitch. The superior adhesion and chemical resistance of the epoxy resin, in combination with the flexibility and water resistant qualities of pitch, produce a system that will provide a high build, ultra dense coating to protect concrete, other cementitious substrates and metal, against a wide range of aggressive media. The coating will not support the growth of bacteria. In appearance Master Pitch is smooth, glossy and black.

Perma Master Pitch

PRIMARY USES

Perma Master Pitch is used to provide a heavy duty protective, waterproof and flexible coating. Uses include the lining of tanks, pipes and ducting. Coating concrete, asbestos cement, steel pipes and non ferrous metals, concrete roofs, floor ducts, drainage trenches. Master Pitch is particularly suitable for use in sewerage work application and in offshore or marine environments.

ADVANTAGES

  1. No primer required.
  2. High build coating.
  3. Easy application : brush, roller, spray.
  4. Economical.
  5. Excellent chemical resistance to aqueous media.
  6. Protects concrete surface by stopping penetration of corrosive gases, sewages gas etc.

DIRECTIONS FOR USE

Surface Preparation:
As with all epoxy resin systems, surface preparation has a direct effect on the performance and durability of the system. Surface to be coated should be sound, dimensionally stable, clean, free from laitance, paint, oil, grease, mould release agent and residual curing compound. Concrete must be fully cured. Grit blasting, acid etching or mechanical scrabbling may be necessary to ensure full removal of cement laitance and deleterious matter. Metal surfaces should be prepared by blast cleaning.

PROPERTIES

Pot Life : 20°C 60MIN
30°C 45MIN
40°C 20 MIN
Tack Free Time : 20°C 6 Hours
30°C 3 Hours
40°C 2 Hours
Initial Cure : Within 24 hours when temperatures are within above range.
Full Chemical Resistance : Within 7 days.

MIXING INSTRUCTIONS

Perma Master Pitch is supplied in pre-weighted units. Mix the base and reactor components separately for 1-2 minutes, using a slow speed high torque drill with suitable paddle attachment. Add the contents of the reactor container to the base container ensuring to fully drain the contents. Mix the base and reactor components together for 2-3 minutes. Pay particular attention to the side and bottom of the container. When a uniform streak free mix is achieved Master Pitch is ready for use.

APPLICATION

Perma Master Pitch can be applied by brush or short hair roller Brush/Roller application. Apply the mixed material to a properly prepared substrate using a brush or short hair roller. The use of a painter’s tray is essential to extend the pot life and correctly meter the material on to the brush or roller. Apply in two coats.

CHEMICAL RESISTANCE

Cured coating is resistance to: Distilled water, Brine, Effluent, Barnacle growth, Sewage, Exhaust gases, Marine Bacteria, Diluted Acids and Alkalis, Salt, Solutions (Potassium & Sodium).

WATCH POINT

No additions or omissions are required and on no account should attempts be made to split packs. Unsuitable in situations where food stuffs or potable water will be in contact with the coating.

COVERAGE

Coverage is dependent on porosity and surface texture of substrate. 1 kg covers 6m² per coat, 4m² for two coats. Two Coats DFT 120 microns.

HEALTH AND SAFETY

Perma Master Pitch should be handled carefully. Use of mask and hand gloves recommended.

PACKING

Perma Master Pitch available in 1 kg and 40 kg packing of equal quantities of base and reactor.

SHELF LIFE

Perma Master Pitch has a shelf life of 12 months when stored unopened in dry, cool conditions.

DISCLAIMER

PERMA warrants that all products are free from any defects of manufacture and comply with the specifications given in their respective technical data sheet. No warranty can be given as to the results of use because conditions of use, such as site conditions, surface preparations, workmanship, weather, structural issues and other factors are beyond the control of PERMA. Purchaser agrees to seek the advice of qualified professionals to carry out tests & take trials to determine the suitability of products for their intended purpose prior to full scale usage of PERMA products and assumes all risks.

The company does not assume any liability for unsatisfactory results, arising from the use of our products. Purchaser’s sole liability is limited to replacement of product or refund of the purchase price paid if any product proven defective. No other warranties, express or implied, shall apply including any warranty of merchantability or fitness for a particular purpose.
PERMA shall not be liable for any consequential damages arising from the use of our products for unsatisfactory results.

The information supplied in this datasheet is based on our experience through extensive research and is given in good faith in order to help prospective users. We reserve the right to update the information provided in our technical data sheet at any time without prior notice within the scope of technical progress or new developments.