Refractory Mortar Mix 30k Bags, (for inner dome) 5 bags = 150kg

Firemortar Mix has the potential to withstand temperatures of up to 1500 degrees Celsius!  Waaaay hotter than you would ever run an oven.  It is a brilliant product to construct your inner dome.  

This is a very good quality NZ made product.  The 5 bags are a good amount to cover a standard 800mm diameter oven in approximately 50mm of mortar.   

If you need a different quantity of bags please message us for a quote.  

Mixed with water, the mortar is easy to work over a cardboard mould or can be placed like concrete.  It can also be used to repair firebricks or to use between bricks in an oven build (just make sure your bricks are damp!).

It has a very low shrinkage rate and very high compression strength making it an ideal product to use in ovens and fireplaces.  

The mix has high temperature fibres added to give it additional strength and help reduce plastic cracking during construction. 

Sets in 1-2 hours and has a rapid curing time.  Whilst it cures fast, it still needs time to dry out before firing and must be heated slowly to expel excess moisture before being put to full use.  

Compression strength is 53MPA after three days and 70MPA after 28 days.  (Average driveway concrete is 20-25MPA so this stuff is incredible!).

In the shop the freight will be calculated to a local Mainfreight depot for you to collect.  Just pick the one closest to you.  It is quite expense to get them delivered to a residential address but we are happy to quote for it so please email us on info@primalfires.co.nz

Sorry we cannot ship to rural addresses.  The cost is too prohibitive as the delivery trucks will charge by the km.