any recommendation of what epoxy product will be best to use for filling up a gab in between steel plates (12-15mm thick each) , the idea as to have it injected as the plates are welded together in one length of 10m .
Belzona has a plate bonding procedure that resembles this exactly. The product they use is 5811. They did a video about it on their Belzona TV YouTube channel. I am looking for it now.
That is quite a large gap and many epoxies will generate a fairly high exothermic reaction at that thickness, resulting in either a large degree of shrinkage or even worse foaming. In order to inject the epoxy, you will want an epoxy with either a 1:1 or 2:1 ratio. Liquid epoxies will deliver higher bond and tensile strength, while paste/gel (filled) epoxies will provide higher compressive strengths..., generally. In the gel category, epoxies designed for segmental bridge bonding are long potlife, generally low exotherm prospects. Low exotherm, long potlife liquid epoxies are harder to find. Sika would certainly have the segmental bridge bonding adhesive/s. Chemco Systems will have liquid, gel and paste version of low exotherm, long potlife epoxies and the injection equipment for the job. Keep in mind that low exotherm and long potlife epoxies tend to have longer full-cure times and may require temperature conditions above 50F degrees.
