Is expanding foam as good as concrete?

Ultimately, expanding foam is better for setting fence posts than concrete. That is in contrast to concrete which can often be solid on top, but rather brittle and inconsistent on the bottom. Even still, concrete is a great choice so long as you mix evenly and thoroughly before you fill the hole, not after.

How many bags of Sika post fix do I need?

Sika® Post Fix: One 979 mL pouch yields approx. 20 L (0.7 ft3) of expanded foam. Let’s take a standard 25-post fence job, your project will require: 50 bags of concrete mix (count 2 bags of concrete mix per post)

What is Sika post fix made of?

polyurethane resin
From the manufacturer From high-rise to home! Sika PostFix is a two-part, pre-proportioned polyurethane resin which when mixed produces an expanding foam. It has been specifically formulated and packaged to provide a lightweight, mix-in-the-bag, and fast-setting backfill for wooden, PVC and steel in-ground supports.

What do you need to know about Sika postfix?

Sika PostFix is a two component, pre-proportioned polyurethane resin. It is mixed in the bag to produce expanding foam for supporting and backfilling fence, mail box, gate and signage posts. Suitable for all types of posts including wood, steel and PVC. You will need Adobe® Acrobat® Reader to view PDF documents.

What can you do with Sika fence post mix?

It is mixed in the bag to produce expanding foam for supporting and backfilling fence, mail box, gate and signage posts. Suitable for all types of posts including wood, steel and PVC. You will need Adobe® Acrobat® Reader to view PDF documents.

Do you have to pay sales tax on sika?

Customer must pay applicable sales tax. Excludes Lowe’s Business Credit accounts, Lowe’s Visa ® accounts and all Lowe’s Canada Credit accounts. We reserve the right to discontinue or alter these terms at any time. Sika PostFix is a two-part, pre-proportioned polyurethane resin which when mixed produces an expanding foam.

What happens if you put a Sika in a hole?

So if the Sika doesn’t mound up a bit above ground level, the hole will hold water and rot the post anyway. Reality is that which, when you stop believing in it, doesn’t go away. – Philip K. Dick