Ready-for-use IPA based Graphite coating for spray, brush and dipping application.

The product COTPOL GA11RM is a ready-for-use Graphite coating having good suspension and covering properties. COTPOL GA11RM is suitable for use on green sand, silicate sand or oil sand moulds/cores and for casting almost all grades of Irons, Copper base alloys and Aluminium based alloys.

Reason to use
COTPOL GA11RM is designed to withstand temperature of molten metal, while acting as a barrier between molten metal and a core or mould surface there by helping in preventing sand burn on, metal penetration, wash erosion, metal/mould reaction and other common defects. It is carefully formulated coating to ensure a high refractory non-wettable and non-reactive coating layer with optimum application, properties to give excellent casting finish.

COTPOL GA11 RM »  Offers good casting finish, free from burn-on and metal mould penetration to reduce fettling costs and improve productivity.
»  Does not cause any coating inclusion problems.
»  Evolves very low gas during casting.

1. Remix the COTPOL GA11 RM coating homogeneously before use.
2. Apply by brush, spray or dip on mould and core surface and light off. Allow to burn out and cool to ambient temperature, before applying the second layer of coating.

Note: Water must not be added to COTPOL GA11RM for dilution.

  Physical state   Dark Grayish Liquid
  Specific gravity (gm/cc)   0.94-0.98 gm/cc
  Viscosity   13-14 sec. min. by B4 Ford Cup
  Solids   25% ± 1%
  Gases   60 to 70 cc/gm @ 1000oC

Standard packing
COTPOL GA11RM is available in 50kg polycarboy.

Shelf life and storage
COTPOL GA11RM has a shelf life of 6 months. The polycarboys are to be kept in a well-ventilated place, preferably under shade, away from exposure to sun and rain.

»  Replace the lid of the carboy immediately after use to prevent evaporation of the carrier.
»  Avoid continuous skin contact as the degreasing effect may cause local irritation.
»  Inhalation of high concentrations of the vapour can be harmful and should be avoided.