Carboned base heaters & painting


Is it necessary to cover up the darkening of my walls from the carbon from an old base heater prior to painting my walls?

2 Responses

  1. If your question is one of priming the walls prior to finishing, then yes, you must prime with 2 coats of stain stopping primer prior to finishing if you wish to not have bleed through.

  2. Yes, it is necessary to cover up the darkening of your walls from carbon deposits left by an old base heater before painting the walls. Painting over darkened walls without proper preparation can result in the discoloration bleeding through the new paint, leading to an uneven finish. To properly cover up the darkening, you should clean the walls thoroughly to remove any soot and grime, use a good quality primer to seal in the stains and prevent them from showing through, and then proceed with painting as usual.

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