T-78 Methyl Methacrylate Concrete Crack Sealer

Transpo® T-78 Polymer Crack Healer/Sealer is a specially formulated, low viscosity, fast setting, methyl methacrylate (MMA) reactive resin system that is highly effective for sealing and filling cracks and pores in concrete surfaces and structures.

Features and Advantages

  • Very Low Viscosity (<25 cPs)T 78 Diagram
  • Deep Crack Penetration
  • Cure Time (45 minutes at 70° F)
  • Fills and Bonds Cracks
  • Fast Cure Time
  • Easy Single Application
  • Low Volatility
  • Strengthens and Extends the Life of Concrete

The very low viscosity and very low surface tension of T-78 allows it to easily penetrate and fill deep cracks in existing concrete. It bonds well to the inner walls of cracks thereby restoring much of the original strength and reducing crack propagation. Its rapid curing time assures a quick return to service.


Application of T-78 is easy. It requires minimal labor and there’s no need for specialized equipment, which results in low installation costs. The use of T-78 on concrete structures reduces chloride permeability thus protecting it from further deterioration. T-78 methacrylate concrete sealer can be used for crack sealing and filling on numerous types of concrete structures:

  • Concrete Bridge Decks
  • Industrial Floors
  • Concrete Roads
  • Parking Garages
  • Aircraft Runways and Hangars
  • Precast Concrete Elements
  • Premature Cracking in New Concrete