HOW TO PAINT CAST IRON – Painting Cast Iron work can transform its drab, dull and dirty appearance into a nice shiny object that really does look attractive. Many old houses have cast iron gutters and down pipes and provided they are looked after these really do look great.
There are, of course other cast iron items you may have around the home and all can be transformed with a little bit of care and a new coat of paint. In this guide we provide you with step-by-step instructions, useful advice and tips that will ensure your cast iron is painted beautifully.
The first job is to give the cast iron a really good clean. You need to remove any existing paint and rust which can be done either with a chemical paint and rust remover or by sandblasting. If you do decide to remove the paint by sandblasting then you can hire a sandblaster from most DIY Tool Hire companies. Remember to exercise safety precautions as sandblasting can be extremely dangerous. Make sure you wear the appropriate safety wear, the tool hire company will be able to advise you on this.
If you choose a chemical paint stripper then carefully read the manufacturer’s application instructions. Whichever of the methods you use, ensure that you are wearing old clothing, gloves, face mask and eye protection. You will also need to make sure you are working in a well ventilated area – preferably outside.
Make sure you thoroughly clean the cast iron to ensure there is no dirt, dust, grime or grease. Once you have stripped the paint then wipe down with White Spirit and a cloth. Once you have finished cleaning the cast iron, leave it to dry thoroughly before moving on to the next step.
Take a paint brush, or paint roller and apply a coat of oil-based primer. Do not overload your paint brush or roller, you need to apply a nice thin and even layer of primer. Once completed, leave it to dry completely. Read the instructions on the tin for application and drying time information. You can test to see if the primer is dry by touching it lightly with your finger tips. If the primer feels tacky to the touch then it is not completely dry.
Once the primer is completely dry you can apply an oil-based paint by giving it one thin coat and allowing it to dry for at least 24 hours. Apply the paint using a paint brush or roller, whichever you prefer, and follow the manufacturers recommendations for use.
There are many types of oil-based paints available and in a range of colours. You can also buy textured paints, such as Hammerite, or paints that provide a smooth glossy finish. Take a look in your local DIY Store for the range of paints available. If in doubt, ask a member of staff for advice.
Check that the first coat is dry, you can do this by touching it lightly with your fingertips – just remember if it is tacky leave it to dry for a longer period of time. If the first coat is dry you can then apply a second coat to finish off the job. When applying the second coat do not overload your paint brush or paint roller. Work with smooth, long strokes, if using a paint brush, as this will produce a nicer, smoother finish without having any paint drips of runs in the paint work.