Logic UH FLEX

Dynamic Crack Repair

Logic UH FLEX is a flexible, epoxy-based system for repairing surface cracks, cold joints and expansion-joint zones in concrete structures. It accommodates structural movement so repaired areas stay sealed under stress. Ideal for high-load locations such as bridges, tunnels and industrial floors, it provides long-lasting resistance to leakage and cracking. By bonding securely to both existing and new concrete, Logic UH FLEX offers reliable protection for foundations, walls and reinforcement zones exposed to vibration or pressure.

Contents:
Epoxy resin (Bisphenol A/B); ethanol-based hydrolysis.
flexible epoxy crack repair for expansion joints
expansion joint waterproofing epoxy structural bonding for moving cracks
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Flexible Moisture & Joint Barrier

  • Seals expansion joints, cold joints and surface cracks
  • Compatible with PVC, Hypalon® and EPDM systems
  • Prevents leaks in façades, basements and foundations

Resilient Structural Bond

  • Bonds reliably between old and new concrete layers
  • Reinforces columns, beams and pipe connections
  • Resists heavy loads in bridges, stadiums and roads

Durable Joint & Crack Filling

  • Repairs joints at grating edges, pipe penetrations and wall openings
  • Maintains flexibility under vibration and structural stress
  • Performs on porous, high-traffic surfaces
flexible joint waterproofing for bridges and tunnels

Advanced Protection & Long-Term Benefits

Logic UH FLEX integrates effectively within complete waterproofing systems. Used with membranes such as PVC or EPDM, it creates a continuous barrier at expansion and cold joints—the most common leak points. The epoxy-sand composition penetrates deeply and cures to a robust bond that remains stable in wet conditions. Designed for demanding environments, it is suitable for subways, airports, bridges and industrial facilities. This flexible joint waterproofing reduces maintenance needs and supports a longer service life.

Applications of Logic UH FLEX

  • Crack repair in upper and lower concrete elements
  • Cold-joint sealing
  • Expansion-joint sealing and insulation
  • Grating-edge and pipe-connection repairs
  • Reinforcement zones in columns and foundations

Step-by-Step Guide

  1. epoxy crack inspection surface damage check Step 1: Inspect cracks & damage. Remove excess material.
  2. concrete marking joint cutting Step 2: Mark surface and cut with concrete cutter.
  3. damaged concrete removal surface cleaning Step 3: Break and remove damaged concrete.
  4. mix Logic UH epoxy mortar sand mix 1:1 ratio preparation Step 4: Mix Logic UH A+B (1:1), add 9–12 kg sand.
  5. pour epoxy mortar add sand layer after mixing Step 5: Pour mortar, wait 30 min, add sand layer.
  6. epoxy curing process 24-hour concrete hardening Step 6: Allow curing for 6–24 hours.
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Animation & Video

Logic UH FLEX demo video

How to use Logic UH FLEX

Logic UH FLEX application guide

Application Areas for Logic UH FLEX

tunnel crack waterproofing repair

Tunnel crack & waterproofing repair

stadium joint sealing system

Stadium expansion-joint sealing

bridge expansion joint protection

Bridge & construction-joint protection

industrial floor crack repair

Industrial-floor crack repair

sports court crack restoration

Sports Ground Crack Repair

concrete column reinforcement repair

Column crack & reinforcement repair

runway joint and crack repair

Airport runway joint & crack repair

tram track joint sealing

Tram/streetcar track joint repair

basement and ground floor waterproofing

Ground-floor water-ingress repair

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Logic Chemie – Waterproofing & Surface Protection Solutions
Address:
Logic Chemie B.V.
Kastanjelaan 157A, 4621 HL Bergen op Zoom, The Netherlands