PRODUCT REVIEW: WETHERTEX AP77 FLEXIBLE SMOOTH MASONRY PAINT

Gary Marsh, from Gary Marsh Quality Decorators and Trade Decorator Product Reviewer tries, test and gives you his thoughts on Wethertex AP77 Flexible Smooth Masonry Paint. Gary has used it it on a couple jobs recently but did it cut the mustard?
What the manufacturer say: "Developed using advanced Optilife silicone technology for improved breathability, AP77 provides a smooth matt finish that is both self cleaning and highly weatherproof and will protect your building for up to 20 years. Flexibility in paint means reduced cracking on buildings that suffer from a lot of movement, which is often a problem with paints that are inflexible, as the paint cracks as the building moves. Our Optilife technology provides waterproofing, resulting in a self cleaning finish due to the silicone resin in the paint, and meaning that no extra coats are needed to waterproof the building."