Due to the wide range of materials used in construction, sewage, DIY and other fields, it is important for professionals and occasional users to be aware of the characteristics and limitations of the sealing putties available on the market. The following is a comparative study of the main products on the market, based solely on their performance. SEALANT PROPERTY SILICONE ACID SILICONE NEUTRAL ACRYLIC POLYURETHANE HYBRID SEALANT DRYING FAST FAST Depends greatly on the humidity and temperature FAST FAST ADHESION Very good on aluminium, glass and ceramic VERY GOOD FAIR GOOD VERY GOOD ELASTICITY EXCELLENT EXCELLENT FAIR GOOD GOOD ANTI-MOULD YES YES YES YES YES PAINTABLE NO NO YES YES YES UV RAY RESISTANCE EXCELLENT EXCELLENT GOOD FAIR GOOD WATER RESISTANCE EXCELLENT EXCELLENT POOR GOOD GOOD TEMPERATURE RESISTANCE -40 TO 150 ºC -40 TO 150 ºC -15 TO 80 ºC -40 TO 90 ºC -40 TO 80 ºC Based on this chart, it is clear that silicones and hybrid sealants are the sealing components that offer the best performance, although adhesion tests should be conducted beforehand on the mediums that are not specifically referenced.
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