Sheet metal adhesives

Bonding sheet metal is a fairly wide issue due to the types of different joints that occur with these materials, but below we briefly explain where and what glue we use. Joining sheet metal on small, medium and large surfaces with each other and with other materials is a choice between ATK 812 glue - a flexible joint applied linearly, and ATK PU 021 applied completely, thanks to which we can level immediately when needed. In this way, we can combine steel, aluminum and painted surfaces, even for: concrete, polystyrene, wood, masonry or plasterboard! Just remember to prime absorbent surfaces, e.g. with P200 or other primer. A special case is the connection with brackets, steel angles and aluminum sheet or, less frequently, dibond composite panels. In such situations, we are already talking about structural bonding and use GB 10-10 or SA 10-15. Galvanized sheet is the second interesting case, because while there is a lot of glue on the market, unfortunately most of them are not suitable for it, because over time after a year or two the joint fell apart after the first layers were oxidized. Our products are the answer to this type of customer problems. The strongest adhesive for this is Acralock SA 1-15. In addition to degreasing, it is recommended to wipe the application site gently with 200-300 sandpaper or non-woven fabric and rub with AP-1 etchant. The joint made in this way undergoes a plasma cat-test simulating 10 years of atmospheric conditions without a decrease in strength !!! (unless we consider 5% too much - because in the case of other products that you use a decrease after 2-3 years, it is 20 to 40% - this is how real it looks) Can I powder-coat the element after gluing it? Yes, as long as you use Acralock SA 1-15 and wash the substrate with AP-1. It is currently one of the few adhesives for customers who compared it with others, also designed to withstand the temperature of a furnace. Are aluminum, steel, stainless, galvanized or painted sheets the same elements? No, for several reasons. The smallest problem is with the steel one, later it gets worse in ordinary adhesives. Virtually every product is "applied" to either aluminum or stainless steel (chromium-nickel) (the so-called high gloss), or at best, without 1 or 2 primers, it is impossible. Painted most often with powder - also here the strong connection can be forgotten, because the current powders are paint based on modified polyethylene and it happens that adhesives simply run off. If you glue such sheets in your company - you know this problem perfectly well. Contact us and we will perform comparative tests and you will see how strong the connection you can count on. What about the car sheet? The ATK EP61 version with a long application time and the possibility of welding is also no problem for these connections, e.g. a fender or a roof panel.