Megapoxy HICB

For backing metal liner plates and filling gaps between liners and support structures in cone crushers, gyratory crushers, and grinding mills, Megapoxy HICB is a two-component, 100% solids, pourable epoxy grout. It provides the high impact resistance and compressive strength needed to withstand heavy machinery loads on concrete and metal substrates without cracking or losing adhesion.

What it does

Megapoxy HICB cures to form a high-strength backing and reinforcement layer that absorbs extreme mechanical shock in mining and quarry machinery. This pourable, low-VOC epoxy flows into tight clearances between liner plates and support frames, securing locking bearings, chocking machinery, and grouting rail tracks. The formulation is available in both Standard and Accelerated versions, allowing installers to select the required cure speed and working window for the ambient temperature of the site.

Numbers that matter

• 112 MPa compressive strength: Ultimate compressive strength (ASTM C579) ensures the cured grout carries heavy cyclic crushing forces without crushing or deforming.
• 20 MPa tensile bond strength: High-strength adhesion (ASTM D897) secures metal-to-metal and metal-to-concrete contact points under severe vibration.
• 50 mm maximum casting thickness: Defines the maximum depth allowed per single pour to control heat generation during cure and prevent thermal cracking.
• 30-minute work time (Standard) / 10-minute (Accelerated): The application window at 25°C to pour and place the grout before the cure reaction begins.
• 24-hour cure at 25°C (Standard) / 6-hour (Accelerated): Minimum curing periods required before returning crushers and heavy machinery to active service.

Where to use it

• Cone crushers and primary gyratory crushers
• Grinding mills, rotating mills, and pulverisers
• Locking bearings and machinery chocking
• Setting anchor bolts and rail track grouting

Installation and mixing

Successful application requires thorough preparation and strict mixing sequences to prevent curing failures:

• Surface preparation: Grit blast metal surfaces to AS 1627.2.2002. If grit blasting is not possible, mechanically abrade to clean, bright metal and degrease with an industrial-grade degreaser.
• Crevice sealing: Seal all crevices with a rapid-setting putty, such as Megapoxy PF, to prevent the liquid backing mixture from leaking out during the pour.
• Mixing process: Stir Part A to eliminate any settling. Add Part B slowly while mixing with a low-speed electric mixer for 2 minutes, scraping the base of the pail. Scrape the sides of the pail with a straight edge (do not use the mixer head) and mix for an additional minute until the blue-green colour is uniform.
• Application: Pour immediately after mixing. If ambient temperatures are high, store the kits in a cool place prior to mixing to prevent a severely shortened working life.

Limitations

• Do not exceed the maximum casting thickness of 50 mm per pour.
• Do not apply if ambient temperatures are below the minimum application temperature of 10°C.
• Do not rely on wire brushing for metal surface preparation, as it is not entirely satisfactory and yields minimal adhesion only.
• Inaccuracies in the mix ratio or incomplete mixing of Part A and Part B will lower physical properties, prevent satisfactory curing, and cause discolouration on ageing.