Expansion Joint Systems


Twin BridgesPolyset is a leader in the design and manufacture of expansion joint systems for the bridge construction industry.

Expansion joints are imperative to the life-cycle of a bridge; the consequence of failing joints as a result of poor quality or improper installation will severely compromise a bridge’s structural integrity.

Our Ply-Krete® joint systems are designed to allow for continuous traffic while accommodating movement, shrinkage and temperature variations on both the concrete and steel structure elements of a bridge.

Ply-Krete® joint systems consist of a high strength, moisture insensitive, elastomeric concrete nosing material and Ply-Seal®, a waterproof joint seal. This is one of the best systems available in the market for bridges. The “toughness factor” of the Ply-Krete® joint system is second to none. These armorless joint systems are designed to preserve and protect concrete decks and substructures by preventing water absorption and minimizing chloride intrusion in the most abusive environments.


Bridges - FlyerFlyer - Bridge
Ply-Seal® Joint SystemsWaterproof Flexible Joint System
Ply-Seal® Joint Systems MetricWaterproof Flexible Joint System (Metric)
Ply-Seal®Highest Temperature Resistance; Non-E.V.A.
Ply-Seal® XEHigher Ultimate Elongation
Ply-Seal® XE BeigeContains H.A.L.S. for U.V. Stabilization
Ply-Seal® FB H.A.L.S.Cost Effective for Exterior Applications
Ply-Seal® FGWaterproof Compatible Foam
Ply-Seal® FG 705.08NYS DOT Approved Foam
Ply-BonderIndustrial Grade Adhesive (Gray)
Ply-Bonder BeigeIndustrial Grade Adhesive (Beige)
Ply-Bonder FPBond Fresh Concrete to Other Construction Materials
Joint Seal Installation
Ply-Seal® Joint Detail with FGFull Depth Waterproof System
Ply-Krete® Armorless Joint SystemsDOT Approved Joint System
Ply-Krete® Joint Systems MetricElastomeric Concrete with Waterproof Joint Seal (Metric)
Ply-Krete® FSElastomeric Concrete / Fast Setting
Ply-Krete® 2615Elastomeric Concrete with Enhanced Properties
Ply-Krete® LVMoisture Insensitive / High Compressive Strength
Ply-Krete® UV GrayAesthetic Match Adjacent Substrates
Ply-PrimerMoisture Barrier / Enhances Bond for Elastomeric Concrete
Ply-Krete® Installation
Strip Seal ReplacementRepair Existing Strip Seal Joint Systems
Ply-Seal® Finger Joint SystemsFor Larger Movement Joints
Ply-Seal® Splicing IronWelding Ply-Seal® Products Onsite or at the Shop
FP GunPneumatic Dispensing Gun
Ply-Krete® H DrillHelical Drill for Ply-Krete® Products
Ply-Krete® Mixing StationTool for Mixing and Handling Thick Materials