Lapping of cast iron is a process that needs to be done with utmost care. The lapping compound should be such that it does not imbed at all into the metal surface. Thus, it is advisable to choose a lapping compound that is free of charging abrasives such as aluminum oxide, emery, silicone-carbide and diamond or diamond like lapping compounds.
Let us look at Timesaver Lapping Compound, which is suitable for cast iron:
Green Label Lapping Compound:
This type of lapping compound is designed for hard metals like cast iron, stainless steel, hard bronze etc. The Green Label Timesaver Lapping Compounds are available in powdered form. They are to be mixed with oil in order to form a paste that is applied to the cast iron surface. These lapping compounds act as an abrasive initially and then work as polish on the surface of the metal. They continue to break down to an inert material and will not imbed or continue to cut. In order to avoid scarring of the cast iron, it is essential to keep the surfaces lubricated with mixed lapping compound or clean oil. Special ingredients in these compounds act towards conglomerating the fines.
Specifications of the Green Label Lapping Compound to be used on Cast Iron:
The green label lapping compounds are formulated in such a way that they consist of particles in a wide range of sizes. Most of the lapping activity is taken care of by the largest size particles present in this lapping compound. While choosing the right grade of lapping compound for the cast iron, you will need to take into consideration the amount of metal that needs to be removed. The coarse grade is for first cut and rough lapping, the medium grade is for general lapping and the fine and very fine grades are for finish lapping.
Micro Surface Corporation: Manufacturers and Distributors of Timesaver Lapping Compounds
Our Green label lapping compound is tailor-made for hard metals such as cast iron and stainless steel. To know more about us, please visit our website www.ws2coating.com or give us a call at 408.723.0700. Our representatives will be glad to assist you.
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