![]() ![]() has air trapped in it, at least you see it before getting into the more expensive part of the repair, top coat etc. Yes, moisture, air or gas trapped expands when you heat it and that 2 minute application I suggested starts to make sense. All of a sudden, they see something starting to lift or bubble / blister on the primer surface. I am only talking about a 2 minute application of infrared costing less than 1 cent For goodness sake!! This can avoid so many problems and cost, for example the shop does not use infrared on the filler, but does on the primer. The reason is it removes any chance of moisture causing an adhesion problem at a later date and the added heat also helps the product work properly. When I am giving a clinic on infrared curing, one of my suggestions is to use infrared all the way through the process, in fact I go further, use infrared on the panel before you apply the very first product and that’s body filler in most cases. Secondly, if the ambient temperature is really low, the metal panel is most likely lower still, so the potential of creating condensation under the filler is very real. Firstly the chemical reaction slows significantly I mean getting this fully cured (ready to sand) could now take hours. It’s therefore important that it’s not applied in low temperature, by that I mean low 60º’s F / 15.5º C or below as there are major downsides. You can actually feel the heat coming off it when it’s curing on the panel. Moisture could get absorbed and give you big problems later in the repair.īody filler is exothermic (creates its own heat when curing). ![]() Another point to note is that body filler, or should I say the talc content is hygroscopic (readily absorbs water) so don’t leave a vehicle in damp conditions with exposed body filler. It can cause blindness in seconds, so little chance for an eye wash in time. Another important point to note: Do not get that stuff anywhere near your eyes. A point to note is : Boiling point (decomposes): >80☌ / 176☏. This is not good stuff to get in your body either via inhalation of fumes or indeed dust from sanding. The main ingredients (but not in all cases) are talc, as in baby powder, fiberglass (polyester) resin, styrene and in the hardener methyl ethyl ketone peroxide (MEKP). To begin, let’s first establish what body filler is and why it can cause problems if not treated correctly. I therefore decided to write an article to cover the do’s & don’ts to help you avoid the things that will possibly slip you up, or as I call them, banana skins. This of course can be with or without the use of infrared. One of the most common application questions I get asked about is with regards to body filler and how problems manifest themselves. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |