AntiCarb CW 101

AntiCarb CW-101
Water based Anticarburising compound
For protection up to 5mm case depths
(Removal by sand / shot blasting)

AntiCarb CW-101 (Off white coloured) is highly effective water based masking compound for gas carburizing / carbonitriding in heat treatment furnaces for case depths up to 5mm.  It can also be used to protect decarburising / scaling during hardening, annealing, stress relieving, normalizing etc. even without protective atmosphere.

AntiCarb CW-101 is free of any solvents, which is of prime importance with respect to health and safety regulation. It is also recommended for organisations under ISO 14000.

Instructions for use

JOB PREPARATION  :

No special job preparation is required. Just ensure jobs free of oil, grease, dirt or rust etc. preferably by cleaning with solvent or alkaline hot water but must be completely dried prior to coating.

APPLICATION : 

Stir the compound thoroughly before and during use, preferably with copper rod. Take the required quantity of compound in working container and close the lid of this container immediately. If required, mix clean water in working container to bring the compound in brushing / dipping consistency. Avoid over thinning. Use flat brush of soft fine hairs for brushing.

Apply one thin and uniform coating of about 0.2 mm and allow coating to dry. Though one coat is generally sufficient for case depths up to 1mm, two thin coats are often used to assure best results even for 4mm-5mm case depth. Excessive thick coating should be avoided since coating may prone to crack. It is advisable to give multiple thin coats than to give thick first coating. Total coating thickness should be 0.3mm to 0.5 mm. Under any circumstances, base metal must not be seen thro’ the coating.

DRYING :

Thorough drying of coating prior to loading in carburising furnace is essential or else coating may crack during heat treatment process. Air drying for about 30 to 60 minutes in dry place may be sufficient even during heavy monsoon. Air dried coated components may be stored for long time in clean & dry atmosphere. Preheating is strongly recommended for better and thorough drying of coating. However preheated components should not be stored and must be immediately loaded into carburising furnace. Coating when dried must be firm and not spongy. Dried components may be loaded in furnace fixtures avoiding coating damage / contact with other components.

REMOVAL:

Since the residue of AntiCarb CW-101 is not soluble in water or solvents, the same has to be removed after heat treatment by mechanical means such as sand / shot blasting or by using steel brush. Boiling solution of Ammonium Bifluoride (10-50%) in water may also be suitable for removal in certain cases.

SAFETY :

AntiCarb CW-101 should be used with adequate ventilation. Wash hands before eating or smoking. If taken internally induce vomiting consult physician immediately.

NON WARRANTY :

Information presented in this literature is considered reliable but condition and method of use may affect results. Clients are advised to confirm their suitability before adopting our products for commercial use. In no case, should recommendations or suggestions for use of our products be taken as warranty, either expressed or implied.