EPDM rubber compound is formulated in specific grades for numerous commercial and industrial uses. Each grade offers trade-offs when it comes to HVAC/R and Plumbing applications – differing performance characteristic such as thermal conductivity, water vapor permeability, and upper continuous operating temperature limits.
AEROFLEX EPDMâą closed-cell elastomeric pipe insulation is engineered for a continuous upper operating temperature of 257ÂșF/125ÂșC. We are often asked if AEROFLEX is rated for 300ÂșF/150ÂșC applications.
Aeroflex USA has tested and approved the following AEROFLEXÂź product lines for piping applications with intermittent operating temperatures up to 300ÂșF/150ÂșC, for up to 30 minutes, within a 24-hour period (daily or periodic):
- AEROFLEX Self-Sealâą and LDPâą Pipe Insulation
- AEROFLEX EPDMâą Standard Tubes
- AEROFLEXÂź-EP (FM Approved) Pipe Insulation
- AEROFLEX EPDMâą Continuous Tubes
- AEROFLEXÂź White/Gray Standard & Self-Seal Tubes
- AeroFitâą EPDM Insulation Fittings
- AerofixÂź Insulated Pipe Supports
- Aeroseal Adhesive
- Aeroseal LVOCâą Black Adhesive
- REF 1520âą Adhesive
This approval does not apply to AEROFLEX EPDM Sheets, Rolls, or Breathe-EZ Duct Insulation on piping, ductwork, and equipment. The reason for this position is that our adhesives are rated up to 180ÂșF/82ÂșC for full spread, 257ÂșF/125ÂșC for seams, and PSA to 240ÂșF/115ÂșC.
This limitation also applies to sheets & rolls installed over large piping with glued seams only. The seams will likely soften and pull apart due to tension from the weight of rolls.
For installation details, please reference the AEROFLEX Installation Guide.
