Stanley Fatmax Pro Chalk Refill Blue 1.1kg nicholson is water proof and ideal

is water proof and ideal for creating invisible seals

and plastic laminated materials

self-sealing strip for use on the underside of purlins & battens fixed directly to your roofing WRB or façade applications

It includes a sturdy metal handle with a comfort grip

tool-free installation directly onto your guide rail

Stanley Fatmax Pro Chalk Refill Blue 1.1kg nicholson is water proof and idealThe Stanley Fatmax Pro Chalk Refill in blue is designed for tough conditions, offering waterproof chalk that snaps crisp, long lasting lines even on wet surfaces. It prevents chalk clumping, ensuring consistent performance in wet environments, making it ideal for outdoor or damp job sites.