What are fuel-resistant waterstops?
Fuel-resistant sealants are designed to maintain a watertight seal in environments exposed to hydrocarbons such as gasoline, diesel, and oils. They are essential in applications where standard sealants may degrade or fail over time.
When Fuel-Resistant Sealants Work Best
You should use fuel-resistant sealants when:
- Joints are exposed to fuels or hydrocarbons
- Long-term chemical resistance is required
- Standard sealants may break down over time
- Sealing is needed in containment or regulated environments
When NOT to Use Fuel-Resistant Sealants
- Dry or standard concrete joints → Use Crete-Stik
- Water infiltration or cold joints → Use Hydrophilic Waterstop
- Surface-to-surface sealing → Use Butyl Tape
- External wrap or reinforcement needed → Use Strap Wrap
Common Applications
- Fuel containment structures
- Oil/water separators
- Grease interceptors
- Airport and transportation infrastructure
- Secondary containment systems
- Wastewater treatment facilities
Quick Decision Guide
Fuel or hydrocarbon exposure → EX 221
Standard joint sealing → Crete-Stik
Water infiltration risk → Hydrophilic Waterstop
Surface sealing → Butyl Tape
Recommended Products
EX 221 Fuel-Resistant
EX 221 is a preformed adhesive waterstop designed to control the ingress and egress of hydrocarbons
