Royex
Expanding Grout Perfect For Hole Diameters of 1″ – 2″
Rock Busters is here to help ensure your project has all the tools and products you need to get the job done quickly and efficiently. Feel free to contact us for any questions.
The Royex cartridge is a non-detonating rock breaking cartridge. It is classified as a pyrotechnic article and holds a 1.4S transport classification. In the European Union, the cartridge is classified as a P2 product, under the European directive for pyrotechnical articles, by the BAM laboratory in Berlin, Germany.
The cartridge consists of a plastic housing containing a pyrotechnic propellant mixture. The robust plastic housing is designed to protect the propellant mixture and the igniter during handling and charging. Royex cartridges are currently offered in three diameters: 22, 32 and 38 mm in lengths from 70 mm to 1100 mm.
Contact our team for more information
ROCK-X is perfect for small to medium sized projects, where 1” – 2” diameter holes are drilled. Small cracks can begin to appear as early as 6 hours, however, waiting for 12 – 48 hours will result in more extensive and wider cracks. Expansion/cracking can occur for up to 2 weeks. In cooler weather, expansion and cracking is slower.
View the Guide to Expanding Grout to get more information.

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Products & Tools To Get The Job Done
Rock Busters is here to help ensure your project has all the tools and products you need to get the job done quickly and efficiently. Feel free to contact us for any questions.
The Royex cartridge is a non-detonating rock breaking cartridge. It is classified as a pyrotechnic article and holds a 1.4S transport classification. In the European Union, the cartridge is classified as a P2 product, under the European directive for pyrotechnical articles, by the BAM laboratory in Berlin, Germany.
The cartridge consists of a plastic housing containing a pyrotechnic propellant mixture. The robust plastic housing is designed to protect the propellant mixture and the igniter during handling and charging. Royex cartridges are currently offered in three diameters: 22, 32 and 38 mm in lengths from 70 mm to 1100 mm.
Contact our team for more information
The Royex cartridge is a non-detonating rock breaking cartridge. It is classified as a pyrotechnic article and holds a 1.4S transport classification. In the European Union, the cartridge is classified as a P2 product, under the European directive for pyrotechnical articles, by the BAM laboratory in Berlin, Germany.
The cartridge consists of a plastic housing containing a pyrotechnic propellant mixture. The robust plastic housing is designed to protect the propellant mixture and the igniter during handling and charging. Royex cartridges are currently offered in three diameters: 22, 32 and 38 mm in lengths from 70 mm to 1100 mm.
Contact our team for more information







