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SOLUTIONS: Cast Iron

Cold repair of cast iron

General

Where there are limitations to hot work, cold repair materials are an alternative. Polymer materials are essentially epoxy or polyurethane products with additions of metal or ceramic filler. They are cold curing materials consisting of a base and activator that are mixed together. During solidification and curing it does not develop any heat. Polymer materials form a surface bonding and it is absolutely essential that the base materials surface be cleaned in order to give good addition.

Therefore:

NB. In order for curing to take place the ambient temperature for polymers must at least be + 5°C. Polymer products are organic material that will start to carbonise at 150°C.This will make a natural limitation to polymer when it comes to high temperature application and in cases where there are specific demand for fire retardant properties. One must also check that the polymer product to be used is resistant to the cargo the part is handling.

Recommended products: Metalgrade Express

Metalgrade Rebuild

Leak Stop Pipe repair I, II or III

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1) Surfaces must be cleaned and ruffed up in order to give a good bonding.

2) Measure out base and activator according to instructions 3) Mix base and activator thoroughly together. Any unmixed material will not solidify.

4) At first only apply a small amount of product and make sure to press it hard into the prepared surface securing good bonding. Afterwards add more product and build up to required height. If needed, a reinforcement bandage can be added to the product in order to increase strength.

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