Logic UH FLEX

Dynamic Crack Repair

Logic UH FLEX is a flexible epoxy-based product developed to repair surface cracks, cold joints, and expansion joint zones in concrete structures. It adapts to structural movement, ensuring cracks remain sealed even under stress. Suitable for high-load areas such as bridges, tunnels, and industrial floors, it creates long-lasting resistance to leaks and cracking. By bonding securely to both old and new concrete, Logic UH FLEX provides reliable protection for foundations, walls, and reinforcement zones exposed to vibration or pressure. Backed by a 20-year guarantee, it is the trusted choice for durable concrete repair and protection.

Contents:
Resin – Bisphenol A, B – Hydrolysis: ethanol
flexible epoxy crack repair for expansion joints
expansion joint waterproofing epoxy structural bonding for moving cracks
Request Service
×

Contact Logic Chemie

Reach out to our team for product details, technical sheets, or project support.
I have read and agree to the [Privacy Policy]. I consent to Logic Chemie storing my data to process my request.

Flexible Moisture & Joint Barrier

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

Resilient Structural Bond

  • Bonds securely 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 edges, and wall openings
  • Maintains flexibility under vibration and structural stress
  • Provides reliable repair for porous and high-traffic surfaces
flexible joint waterproofing for bridges and tunnels

Advanced Protection & Long-Term Benefits

Logic UH FLEX stands out for its ability to integrate with complete waterproofing systems. Applied together with membranes such as PVC or EPDM, it forms a continuous barrier against water in expansion joints and cold joints—where most leaks originate. The epoxy-sand composition penetrates deeply and cures into a robust bond that does not dissolve in water, ensuring safety in drinking water environments. Designed for heavy-duty conditions, it is the preferred choice for subways, airports, bridges, and industrial facilities. This flexible joint waterproofing reduces maintenance costs and extends structural service life.

Applications of Logic UH FLEX

  • Cracks in lower and upper structures
  • Cold joint sealing
  • Expansion joint and expansion joint insulation
  • Grating edge and pipe connection repair
  • Reinforcement zones in columns and foundations

Step-by-Step Guide

  1. img2 Step 1: Inspect cracks & damage. Remove excess material.
  2. img1 img2 Step 2: Mark surface and cut with concrete cutter.
  3. img1 img2 Step 3: Break and remove damaged concrete.
  4. img1 img2 Step 4: Mix Logic UH A+B (1:1), add 9–12 kg sand.
  5. img1 img2 Step 5: Pour mortar, wait 30 min, add sand layer.
  6. img1 img2 Step 6: Allow curing for 6–24 hours.
×

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 repair

Tunnel Crack & Waterproofing Repair

stadium joint waterproofing

Stadium Expansion Joint Sealing

bridge expansion joint sealing

Bridge & Construction Joint Protection

industrial floor repair

Industrial Floor Crack Repair

parking garage joint repair

Sports Ground Crack Repair

sports court crack repair

Column Crack & Reinforcement Repair

column crack repair

Airport Runway Joint & Crack Repair

runway crack repair

Tram & Streetcar Track Joint Repair

tram track joint sealing

Water problems on ground floor

Discover Other Products

Logic Sept Animal

Logic Sept Animal

Alcohol-free disinfectant for cages, stables, and aquariums.
Logic Glass

Logic Glass

Long-lasting glass coating that repels water, oil, dirt, and UV damage.
MoldEx Foam

MoldEx Foam

Eco-friendly foam removes mold safely in basements, ducts, and walls.
MoldEx Plant

MoldEx Plant

Eco-friendly plant disinfectant. Alcohol-free protection for healthy growth.
Logic DP+

Logic DP+

Zinc-epoxy metal coating – protects steel & iron from rust, water & corrosion.
MoldEx

MoldEx

Chlorine-free mold remover for safe, lasting indoor protection.
Logic Germ

Logic Germ

Long-lasting disinfectant for safe, effective surface hygiene.
Logic Sept+

Logic Sept+

Safe, certified disinfectant for sensitive skin & daily hygiene.
Logic Sept

Logic Sept

Medical-grade hand disinfectant – kills 99.99% of bacteria & viruses, DIN EN certified.
Logic Clean N

Logic Clean N

Powerful eco-cleaner for oil and grease stains on all surfaces.
Logic Clean SF

Logic Clean SF

Eco-safe cleaner for tough dirt with fast, professional results.
Logic Silicone

Logic Silicone

Nano-tech silicone sealant for mold & moisture – long-lasting & eco-friendly solution.
Logic Clean BA+

Logic Clean BA+

Strong bio-based cleaner for extreme chemical stains.
Logic Wood

Logic Wood

Premium wood coating with Pico Technology for durable, eco-safe protection.
Logic Clean BA

Logic Clean BA

Bio-based cleaner for oils, resins, and chemical stains.
Logic Clean BT

Logic Clean BT

Safe removal of paint, varnish, and graffiti from multiple surfaces.
Logic Clean B

Logic Clean B

Eco-safe rust remover for metal, concrete, stone, wood, and textiles.
Logic Clean A

Logic Clean A

Eco-friendly cleaner for moss, algae, and green deposits on multiple surfaces.
Logic UH FLEX

Logic UH FLEX

Durable epoxy for crack repair, joint sealing, and structural reinforcement under heavy loads - backed by a 20-year guarantee.
Logic DP

Logic DP

Advanced deep epoxy protection for concrete - backed by a 20-year guarantee.
Logic Water

Logic Water

Moisture protection for concrete, stone, basements, tunnels, and historic buildings - backed by a 20-year guarantee.
Logic S

Logic S

Eco-friendly coating with 20-year protection against water, oil & microbial damage.
Logic UW

Logic UW

High-performance crack injection – seals floor, wall & ceiling cracks under water pressure, backed by a 20-year guarantee.
Logic UW FLEX

Logic UW FLEX

Durable flexible injection system for tunnels, bridges, and structural crack sealing - backed by a 20-year guarantee.
Logic DS

Logic DS

Durable nano-epoxy coating for waterproofing, chemical resistance & structural integrity - backed by a 10-year guarantee.
Logic UH

Logic UH

High-performance resin for concrete cracks - repair, waterproof, and strengthen structures, backed by a 20-year guarantee.
Logic EX

Logic EX

Premium exterior waterproofing for stone, concrete, roofs, facades & balconies - backed by a 20-year guarantee.