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Black leading is a traditional way to refresh the appearance of a black cast iron fireplace. Modern Black Lead Grate Polish can restore a dull finish and help cover small marks. It is applied in a thin layer, allowed to dry and then buffed.
Is Black Grate Polish Suitable for Your Fireplace?
Black grate polish is suitable for many traditional black cast iron fireplaces, grates and surrounds.
Do not apply it to:
Check the existing finish before you begin. A fireplace that was originally painted may be better refreshed with high-temperature paint.
What You Will Need
You will need:
Black grate polish can mark nearby surfaces, so protect the surrounding area carefully.
Prepare the Cast Iron
Make sure the fireplace is cold before applying the polish. Remove dust and loose dirt with a soft brush or dry cloth. The cast iron should be clean and dry. Do not wash the fireplace with water immediately before black leading it.
Apply the Black Grate Polish
Put on protective gloves and apply a small amount of grate polish to a cloth. Work it into the cast iron in a thin, even layer. Use a small brush or cloth to reach decorative details and corners. Apply the polish sparingly. A heavy layer can be difficult to buff evenly and may collect in the fireplace detailing. Allow to dry thoroughly before the next step you will see it go more of a matt black colour.
Buff the Finish
Once dry, buff the cast iron with a clean cloth or soft brush. This removes loose residue and develops the finished appearance. Continue buffing until the surface looks even. A second thin coat can be applied if the cast iron still looks patchy. Allow the first coat to dry fully before adding more product.
Black Grate Polish or Matt-Black Paint?
Black grate polish and high-temperature paint produce different finishes. Grate polish is generally used to maintain or restore a traditional black cast iron finish.
High Temp Matt Black Paint may be more suitable for matt black painted fireplaces, scratches or areas where the existing coating has worn away. Do not apply both products without first checking how the fireplace was originally finished.
Looking After the Finish
Dust the fireplace regularly with a soft, dry cloth. The grate polish can be reapplied when the cast iron begins to look dull, but it should not need to be used every time the fireplace is cleaned. Read our full guide on how to clean and maintain a cast iron fireplace for advice on polished, highlighted and matt-black finishes.
Phone
01773 718718
Email
sales@castfireplaces.co.uk
