Union Station Before
Membrane under ballast with rocks
Layer under ballast
  • Union Station Before
  • Membrane under ballast with rocks
  • Layer under ballast

Matacryl RB

Bridge deck waterproofing on rail systems

Matacryl RB provides seamless waterproofing and extreme impact resistance under rail ballast. When required by specification, a proprietary ballast mat is placed in conjunction with RB Adhesive to seamlessly bond the mat and the waterproofing system. 

Typical system build includes:

  1. Matacryl Primer CM on substrate
  2. Matacryl Membrane Layer (1 or 2 layers)
  3. Matacryl STC Seal Coat Layer (optional)

Basic Uses
  • New construction
  • Restoration or replacement rail bridge
  • Grade separation applications

Frequently Asked Questions
  • How is the Matacryl RB system applied?

    The Matacryl RB system has components that can be applied manually or by spray equipment. Contact infrastructuresystems@tremcoinc.com for application instructions.

  • What happens to the system if ballast isn’t place right away?

    The Matacryl membrane, once cured, offers full protection regardless of when ballast or ballast mat is placed. However, a Seal Coat is required for UV protection if system is left exposed for more than two weeks before ballast is placed.

  • Is Matacryl RB AREMA certified?

    Matacryl RB systems exceed requirements of Chapter 8, Part 29 Waterproofing of the American Railway Engineering and Maintenance-of-Way Association (AREMA) Manual for Railway Engineering.  Matacryl RB meets AREMA Ballast Indentation test for use without any protection board.