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ElastiPoxy Joint & Crack Filler Kit

  • Industrial-Grade, 2-Part, 100% Solids.
  • Flexible. Allows for Proper Movement of Control Joints.
  • Mix with Sand for a Rigid Repair of Cracks & Mortar Joints.
  • Bond Tenaciously!
  • Moisture Tolerant. Can be used on Damp Concrete.
  • Kit Includes Measuring Cups and Paddle Mixers.



Product Description

RadonSeal ElastiPoxy Joint & Crack Filler Kit is a commercial grade, self-leveling, 100% solids, two-component, flexible epoxy for lasting crack repair and filling of contraction/control joints, saw cuts, spalls, and larger cracks in poured concrete and concrete blocks. Zero VOC’s, no polymer additives or fillers.

Uses for straight ElastiPoxy:

  • Control joints in warehouse or factory floors.
  • Repairing cracks in concrete slabs.
  • Saw cuts in foundation slabs, basement floors, driveways, and garage floors.
  • Floor-to-wall joints in basements and buildings.
  • Control joints in driveways, sidewalks, parking areas, runways.

Uses for ElastiPoxy mixed with sand:

  • Filling very wide cracks in concrete slabs.
  • Spalls, holes, and defects in concrete driveways, patios, and pool decks.
  • Permanently seal cracks in concrete block or brick foundation walls.
  • Parging to repair and waterproof crumbling or honeycombed concrete.
  • Waterproof leaking form wire ties in poured concrete walls.

Easy to use by both contractors and the DIY homeowner. ElastiPoxy Kit Contents:
1 of Base Resin (Compound A), 1 container of Epoxy Hardener (Compound B), 3 Measuring Cups, 3 Drill Mixing Attachments.

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Common Uses


  • Flexible Repair To Allow For The Natural Movement Of Concrete And Joints.
  • Adhesion To Damp Surfaces, Making It Ideal For Basements, Slab On Grade, And Driveways.
  • Permanently Fills And Repairs Leaking Contraction Joints, Floor To Wall Joints, Expansion Joints, And More.
  • High-Quality, 100%-Solid, 2-Component Epoxy.
  • Just Add Sand To Increase Workability And Use As A Super Strong Mortar Alternative


Based on a routed joint or crack 1/4 inch wide by 1/2 inch deep.

STRAIGHT (for moving contraction joints and floor-to-wall joints) –

  • 2 Quart Kit – 75 linear feet
  • 2 Gallon Kit – 300 linear feet

MIXED WITH SAND (for a rigid repair of larger cracks and spalls) —

  • 2 Quart Kit – 375 linear feet (using 4:1 sand to epoxy ratio – approximately 20 lbs. of dry sand)
  • 2 Gallon Kit – 1500 linear feet (using 4:1 sand to epoxy ratio – approximately 20 lbs. of dry sand)