Talc filled PP is about the worst but the application I mentioned is exactly that - with no adhesion promoter or flaming required.
I use Sikaflex 552 to mount frame to trailers that are then used to hang and hard tensioner advertising banners. If Sikaflex is failing it’s usually down to bad or not prepping both surfaces. If the frame comes away on this product and the glue stays on the frame trailer hasn’t been prepped correctly if it stays on the trailer frame isn’t prepped, now if it’s evens they’ve both not prepped. We know this from using Sikaflex for the last 10 years, we are ultra careful to ensure we’ve prepped. If we ever doubt we’ve prepped we do it again, on a 44ft/16metre trailer it’s no joke..... I have a lot of it in my van along with prep should you need any and prep PM me I’ll send you 2 600mm Sausages with nozzles. There is a better product by Formoa sticks better seen it tested to 2.5 tons and the GRP panel delaminates before the glue gave out, however we don’t use it as my customer hasn’t tested it himself so refuses to use it.
Thank you appreciate it think bottom line is whatever route to take needs preparation I think the first few uprights are staying on by luck more than anything else. I think the thought process was screws and then the sikaflex but the screws have no purchase just vibrate out and surfaces not prepared properly or at all so it’s now start again and it’s sikoflex or double sided tape
Stuff we also use it in applications of vibration welding when the substrates are beyond the 10 degree max limit to accept the +/- 0.8mm lateral movement of the weld head - it's stronger than the weld on pull tests and the foam allows compliance during the weld process so no structural integrity of the tape is lost
Due to the nature of the system we fit it fails immediately usually, only time it failed actually in service is when we switched briefly to 3M that failure was only here and there. Personally I’d go with glue over tape but that’s just down to personal choice. We have used double sided tape made by the same folk as formoa makers with excellent results, I wasn’t on that task though so don’t know the specific product. Here is forgeways formoa makers inter web thingy https://forgeway.com/
If you were involved in this at work you would know stuff, lack of knowledge on a subject isn't being thick - on the other hand some of the most learned people are proper thick cvnts
Hmmmm if the van is honeycomb (some just have a dense expanded foam core) with a thin laminate no fastener will work as it has nothing to bite into. I’ll assume it’s a body you’ve had built onto a chassis cab from your description? Most of the box bodies I’ve worked on are constructed in this way nowadays as majority of consumers of box bodies prefer weight saving to longevity. Gone are the days of GRP that builders would screw and rivet now screws and rivets are used to hold the racking strips in place whilst the bonding agents set.
Honeycomb possibly but very small dimples all over the body yes for weight savings as van payloads are the biggest problem especially when as big as my van my old van was similar but much stronger so carried less like 170 kg less
Ah yes I see now, great idea those high volume low floor 3.5 tonne vans, lots of companies large and small love them. Spoke with a free lancer few years back about his job, he had an app on his phone with which to search for loads. Said he often slept in it waiting for connecting loads tramping round UK weekdays. See a lot at DFS furniture CDC’s too especially at peak season. I see now you mean load lock racking that runs horizontally along the length of your van to secure your loads either by bar or strap? Yes the coach builder I work at bonds that racking and rivets to hold it place whilst the Sikaflex goes off. Could I ask, if it’s dimpled is it self colour in White the same as the exterior of your van or translucent?
One strip of load lock runs length of van each side and is absolutely stuck on from factory the rest is upright strips of aluminium with wooden tie rails running length of van, that’s my old van but it’s pretty identical as in the tie rails how it’s done the old van was smooth sided and a lot heavier panels I could climb around on rails it was that strong. My newer van is much flimsier and not smooth sided
