Crackbond LR321 is formulated for use as an injection resin for cracks in structural concrete, masonry & wood. It’s also perfect for epoxy grouting, healing-sealing or as a mortar when mixed with sand. It has the viscosity of light oil and low surface tension, allowing it to deeply penetrate fine cracks.  It cures to a solid with no shrinkage, bonds to both surfaces of the crack, bonding the structure back to its original monolithic strength.

General Uses

• Pressure injection of fine to medium size cracks (3mm to ¼”)
• Primer for industrial coatings
• Bonding agent for new to old concrete repair
• Epoxy Resin binder for epoxy mortar patching using addition of aggregate
• Sealer for interior slabs and exterior above-ground slabs from water, chlorides and mild chemical attack
• Gravity feed structural crack repair in horizontal concrete, masonry and wood in fine to medium size cracks

Advantages and Features

• High strength
• Moisture insensitive system-can be used on damp surfaces
• 100% solids, solvent free system means low VOC content
• Low Viscosity epoxy system ideal for gravity feed crack injection applications