Sika s first product appropriately named sika 1 was a concrete admixture that allowed for the electrification of tunnels in europe by waterproofing the concrete that lined the interior.
Sika foam vs concrete.
Sika postfix fence post mix a two component mix in the bag expanding foam for supporting non structural posts such as fence mailbox and sign posts.
Lightweight pouch replaces two 50 lb.
Expanding foam by splinter puller if the post are ligh.
Mix design of cellular concrete lightweight concrete technology and application cement content 300 350 kg m water content 150 l m with foam generator sg 70 180 l m with foam generator sg s 9 foam unit weight 0 03 0 06 kg l with foam generator sg 70 0 03 0 05 kg l with foam generator sg s 9.
It is mixed in the bag to produce expanding foam for supporting and backfilling fence mail box gate and signage posts.
The foam like i said in the post there were possible issues with maybe the weather or the depth of the hole etc but if the whole point is to beat concrete i still say this failed in that respect.
Its formulation allows for an extra high yield providing a high volume of cured foam per can and saving time during application.
Just a honest review to help you out.
For more than one hundred years sika has been producing high quality innovative technologies for concrete.
It is resistant to aging and adheres well to most common building materials.
Suitable for all types of posts including wood steel and pvc.
The foam worked great i m not bashing the product.
Setting posts in concrete vs.
Sika postfix is a two component pre proportioned polyurethane resin.
Been looking at the sika post fix costly but easy to transport compared to concrete or gravel but from what i read it s tricky to handle because of the need to immediately pour the mixed product into the hole before it starts to expand.
Concrete is cheaper and pretty fool proof vs.
Set all types of posts in 3 minutes wood steel pvc sika post fix expands in all directions and adheres to virtually anything in the ground.
Concrete does not expand into cavities in the substrate.