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  MEC Sealer :

Various types of MEC Sealers are available to seal the porosity of thermal sprayed coating to avoid (1) Corrosion at the coating / substrate interface (2) Leakage at fluid and pressure seal in certain machine parts (3) Contamination or grinding debris from entering the coating (4) Deterioration of dielectric properties of ceramic coating.
 MEC D-BOND

 This is a masking compound applied over the adjacent surface to prevent adhesion of the sprayed metal, where coating is no required.
 MEC Sealer

 

MEC SEAL - AP

This is a phenolic liquid with good wetting properties so that it will flow readily and permeate the fine pores in sprayed coatings. It can withstand a temperature of the order of 70 - 80°C and is resistant to hot hydrocarbons. This sealer may be used for sealing coating which are to be finished by grinding and later to be used with lubricating oil. This is also suitable for flame sprayed coating.

MEC SEAL - BP

This is a phenolic liquid and dries only after baking. The visosity of this sealer is more than that of AP. This sealer can withstand a temperature of the order of 70 - 80°C and is resistant to hot hydrocarbons. This is also suitable for flame sprayed coatings.

MEC SEAL - AV

This is a synergetic combination of organic resin with volatile solvents alongwith the leafing agent. This sealer is good for resisting salty environments and especially used for ship hulls, boats etc. Due to the presence of leafing agent, it can close coarser porosities also.

MEC SEAL - CV

This is similar to MEC SEAL - AV, however, without leafing agent, and is good for plasma flame sprayed coatings. This viscous liquid. However, when applied on hot as sprayed parts, it gets thinned and penetrates the porosity.

MEC SEAL - M

This is a black colored tar and pigmented with the bituminous. This can be used as a general sealer to resist the attach of moisture and ground rain water. This can be used for flame sprayed coatings.