Since 1972, Polyguard's Pavement Underseal Membranes have been used across the country in Pavement Waterproofing and rehabilitation projects:

1. Applied as Highway Underlayments over cracks or joints on the old pavement prior to a new overlay, Polyguard underseals have been proven to:
   • Provide a permanent seal, even if the new pavement above the underseal cracks.
   • Reduces the amount and severity of cracking in the new pavement surface, thus reducing Pavement Maintenance.
2. Applied to bridge decks or parking garages prior to overlay, Polyguard underseal provides an impermeable barrier protecting steel rebar from moisture and corrosion.

Applications:

• Rehabilitation of concrete pavements prior to asphalt overlay
• Rehabilitation of asphalt pavements and parking lots
• Protection of bridge decks

Technical Information:

• How Polyguard underseals protect pavements
• Highway DOT research using Polyguard underseals
• List of state DOT's who have used or researched Polyguard underseals

Polyguard has been ISO 9000 certified since 1996. Current certifications are:
- American Natl. Standards Institute
- Dutch Council for Certification
- Deutscher Akkreditierungs Rat