Johnstones High Performance High Flex Basecoat is a premium quality, professional-grade basecoat designed for use on a wide array of surfaces. This 25kg product provides high flexibility, making it ideal for preventing and repairing hairline cracks. Its robust formulation ensures excellent adhesion to substrates, providing a strong foundation for finishing coats. Suitable for both interior and exterior applications, this basecoat is easy to mix and apply, offering durable and long-lasting results.