Acrylic Sealants & Adhesives
Acrylate sealants originally where used of for their ability to be overpainted. Whilst this is impossible for silicone sealants, the results on acrylic can be called reasonably good to very good.
However, fact is that the composition of paint is constantly changing due to market developments and regulations (such as 2000 KWS and VOC2010). A different composition of paint means that the paint also behaves differently. At Den Braven we have many years of experience in producing high-quality acrylic sealants that provide the best solutions in practice. We have managed to develop ourselves into an international specialist with customers in the global paint industry. Den Braven ’s international R&D centres keep close track of the developments inon the market and work closely with several paint producers. This strategic partnership allows Den Braven to develop the best possible products. As For example, Den Braven provides the solution for the most common problems when overpainting sealants -, paint cracking and bleeding or migration.
Paint Cracking is a typical painter’s problem. Cracking is a distortion of the film and shows long cracked lines or a pattern of small cracks (mud-cracking). Cracking is a problem in the finishing process and is not easy to solve afterwards, generating delay and additional costs. Paint cracking occurs in the curing process of paint on acrylic sealants. Cracking can be caused due to incompatibility between paint and sealant formulations, incorrect balance of binder in paint formulation (value or high coverage quality) and/or prematurely overpainting, causing dissolving of the top layer of sealants.
Bleeding or migration at the paint surface and the adjacent surfaces becomes visible through dark spots around the painted joint sealant or discoloration of the paint itself. Solving the occurrence of bleeding is highly time and material consuming and therefore very costly. Bleeding is a problem which occurs mainly with acrylic based sealants. It is caused by non-compatibility between paint and sealant.
UCA®-Technology is a registered brand of Den Braven that refers to these sealants that are compatible with paint and prevents paint cracking and bleeding. Den Braven ‘s UCA®-Technology is unique in the market for our proven products. UCA stands for Unique Compatibility Additives. Den Braven sealants with the UCA-logo offer the best possible compatibility between sealants and paint due to selected raw materials, specialiszed additives and dedicated R&D and testing facilities.