The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
From GMA Garnet Pty Ltd:
The free GMA Garnet abrasive blasting calculator is the perfect tool for project estimators and contractors to calculate the true cost of blasting with GMA Garnet. The cost calculator will generate the total cost per square metre or square foot of surface area blasted, and the total abrasive and time to complete a given project. The true cost includes not only the abrasive, but also the cost of disposal, labour and equipment hire, and takes into account the superior blasting performance of GMA Garnet compared to other abrasives. The App also allows you to compare the true cost of blasting with GMA Garnet against your existing abrasives, such as slag or staurolite.