Primers are preparatory coatings applied to surfaces before painting or applying other finishes. They provide a smooth, even base that improves the adhesion of paint or other coatings, ensuring a longer-lasting and more durable finish.

Primers are available for various surfaces, including wood, metal, plaster, and masonry, and some are designed with specialised properties such as stain-blocking or moisture resistance.

By using a primer, you can enhance the final appearance of your project while protecting the underlying material from moisture, rust, or other potential damage.