adhering caesarstone to powder coated metal framw

[Giz]

Hi I'd like to mount caesarstone (1900mmx1000mmx20mm with 40mm edge, 100kg) onto powder coated metal frame (load capacity 300kg).

The gap between two supporting bars/brace is 255mm.  Overhang off brace is 295mm both sides.  Over hang off ends of frame will be 150mm.

Is is strong enough to prevent bending of stone in the parts not contacting the metal?

If yes what adhesive do I use? Is liquid nail OK?  Or? What product do I buy?

If not strong enough, I can get MDF to "brace it" but will need to screw this into the frame.  The frame has holes that are 6mm but the length of the screw will need to be 80mm (thickness of bar) + 20 mm (MDF) plus thickness of nut .  I can't seem to find the products required. Also which adhesive will I use to stick MDF to stone?

Thanks

 

  

 

[EricL]

Hello @Giz 

Thank you for sharing your question about your Caesarstone benchtop. The current steel support you have is not enough to hold your stone benchtop. Even when reinforced with MDF it might require extra support. I propose engaging the services of a stone top specialist who can guide you in regards to what type of support will hold the stone in place properly. Stone benchtops have very specific tolerances and when they are not met it's possible that the benchtop will crack or get damaged. 

In regards to adhesives, I suggest looking at the Sika 290ml Sikaflex®-118 Extreme Grab Construction Adhesive, Sika 300ml White NO1 Davco Neutral Cure N Silicone and Selleys 250g Liquid Nails Clear Construction Adhesive.

Let me call on our experienced members @Nailbag, @Dave-1 and @AlanM52 for their recommendations.

If you need further assistance, please let us know. 

Eric