Methacrylate adhesives

Methacrylate adhesives - Acralock You will find information on methacrylic adhesives from this company. Due to the patented production technology - other available on the market are only hybrid adhesives and not MMA (methacrylic) adhesives, which translates into negative properties of epoxies or polyurethanes. In fact, all Acralock products are structural adhesives, where tear tests even result in complete destruction of the test sample. Methacryl, epoxy or polyurethane? This question could be answered right away, but read the most important information below: MMA only has a safety mark on the package - an exclamation point and a flame; in other products they are, for example, dangerous to the environment, the blades are toxic or a health hazard - see on your products what markings you have, because in the case of additional products, you must implement special working conditions, such as full protective clothing, special ventilation and full protective masks. Why? Epoxy adhesives give off amines and polyurethanes, isocyanates - very harmful compounds, especially when used in larger quantities. Strength - the shear force with methacrylics reaches 35 MPa; While epoxies are able to achieve these strengths, another problem arises as all of these tests are performed on samples where the adhesive thickness is 0.05mm! With greater thicknesses, this force decreases; in the case of polyurethanes, the forces reach 20-24 MPa at best. Acralock adhesives reach their full strength after 5-8 hours, depending on the application time. With other adhesives, it is up to 24 hours, although the adhesive itself can set faster. We do not have to use primers-primers to the surface, especially for special materials such as aluminum, "stainless steel", powder coated materials, and when these materials are glued to other surfaces, it is necessary to use even 2 primers in other adhesives. The flexibility of the glue (it's about expansion, not whether the glue is as soft as rubber) - we can choose from 40% (Acralock SA 1-15) to 400% (Acralock GB 10-10), so we can adjust the product depending on the surface we connect. Standard epoxy is 1-10%, and polyurethane is much better and has a full cross-section of the version. The obligatory and required gap is wide, because e.g. for SA10 it is from 0.5 mm to 1 cm. Only industrial polyurethanes PU16 and automotive epoxies like EP61 can have such discrepancies. In many cases, standard unfilled epoxies have gaps of 0.00 nothing up to 0.1 mm. If there are so many pluses, where is the catch? little knowledge of these adhesives - in most companies they do not know about the existence of such products in relation to polyurethanes, this is a higher price (although not always, because polyurethane needs to be applied 3-5 times more) and taking into account additional safety considerations do not stick some materials and are not recommended for all of them, e.g. for glass, only the GB10 version (but we do not use, for example, polystyrene) minimum gap 0.1 - although it is not a lot, but when gluing very small or smooth surfaces, you can achieve a fitting basically 0.00 and then just then we can use epoxy or cyanoacrylate glue, i.e. contact-contact continuous operation up to 120 degrees, short-term up to 250. if higher only epoxy adhesives, silicones and the so-called ceramic What are methacrylate adhesives best for? The main applications are metals, composites and plastics. Detailed application below and in the descriptions of the individual versions. Types, versions and application: We have two main "lines", i.e. versions with 1: 1 and 10: 1 aspect ratios. Versions 1: 1 This version is SA 1-15 (1-05 is a shorter time with 50-70% expansion) - intended mainly for small and medium surfaces, especially galvanized metals, high-gloss stainless steel (chrome-nickel, etc.) and polyamide - and there is no competition in these materials. Versions 10: 1 SA 10-15 (series SA 10LV - 10-05 and 10-30) - the basic version, with which we start gluing tests, especially for aluminum and composites for small, medium and large surfaces with an expansion of 80-120%. SA 10-15 WHT (10-45) - a perfectly white version for the automotive industry - semi-trailers, car bodies, marine and advertising companies. SA 10-70 (series SA 10HV - 10-60, 10-100) - version with 200% expansion, designed for yacht yachts - for gluing reinforcements, crossbars, etc., you can apply even 5 cm of glue! GB 10 (GB 10-05, 10-10, 10-30) - expansion up to 400%, but most importantly, it is the first non-sticky methacrylate during setting. It is also suitable for glass, ceramic and dibond surfaces without the surface being drawn in - exterior facades made of composite panels and advertising industry. PP 1-02 - the only effective adhesive for polyolefins PP, PE, POM and PTFE. CC 10-12 - perfectly transparent methacrylic for plastics with each other and other materials - wherever an aesthetic connection is needed. We will not describe the SF and FA series, they are made to order. Are Acralock the strongest adhesives in the world? You can say yes and no. No - because there are stronger adhesives - but for only a narrow application on materials, e.g. metal and only steel+ steel, e.g. one-component epoxies, which must be heated and the entire production regime must be maintained. However, if we take into account the ease of persuasion, wide application along with minimizing errors during the application, we can say that they are the strongest.