The importance of acrylic primer for screeds and adhesives
Pinholes, blisters, poor adhesion or a chipped finish are just some of the defects which can occur where an acrylic primer hasn’t been used with a screed or adhesive surface.
These defects are caused because, without an effective acrylic primer bond failure between the screed or adhesive and the next layer becomes a real risk. Further issues, such as a chemical reaction could occur which can cause tiles to lift or paint may have less grip and therefore is more likely to peel or scratch over a shorter lifespan.
To ensure that your product delivers a finished surface that is durable, long-lasting aesthetically pleasing, let’s look at the benefits of an acrylic primer.
Improved adhesion – the primer creates an important bonding layer between the substrate, such as concrete, screed, wood, etc., and the applied material. This inhibits rapid drying, especially in highly absorbent screeds, as well as chemical reactions taking place, typically seen with gypsum-based screeds. All of which can prevent peeling or delamination and lead to a high-quality finish.
Enhanced durability – by improving adhesion, sealing the substrate – without it drying too quickly, primers extend the lifespan and performance of the finished floor system.
Prevention of defects – through sufficient sealing of the substrate, the primer eliminates any bubbles forming and bursting on the surface which could lead to pinholing. Other defects that are avoided are uneven curing or cracking in levelling compounds and coatings. Therefore, supporting the creation of a more consistent surface which helps to achieve a uniformed finish.
Selecting the right primer and partner
Whilst typically you may opt for a different primer for absorbent and non-absorbent surfaces, our AptiCryl Primer is an exception. Part of our specially developed range of high-performance acrylics, it can be used to provide a smooth yet tacky surface for maximum bond strength on overcoated self-levelling compounds, screeds and adhesives.
Based on a pigmented acrylic polymer emulsion system, the water-based primer can also be applied to a wide range of substrates including ceramic, porcelain, stone, metal and timber, making it highly versatile. And through its low viscosity it can easily be pumped and applied by brush or roller for interior or exterior use – adding to its beneficial characteristics and supporting time efficiencies.
Find out more about the range here or contact us to discuss your requirements and see how you can tap into the expertise of our National Technical Centre.
