Hisco logo on a photo of a man applying 3M Scotch Weld to metal.

Aircraft Sealants Solutions Featuring 3M

Why Choose Hisco for Aircraft Sealants?

Local Inventory
North American Footprint
Converting & Repackaging Solutions
Documented Cost Savings

Achieve more efficient aviation with 3MTM Aircraft Sealants

3M offers the durable, high quality sealants for aerospace manufacturing, maintenance and repair. Only 3M Aerospace Sealants cover your needs for aircraft performance, lightweighting and curing time.
Contact Hisco today to make the best choice for 3M Aerospace Sealants.

3M Aerospace Sealants deliver:

  • High temperature resilience and fuel efficiency
  • Resistance to degradation from jet fuel exposure
  • Streamlined production and increased efficiency
  • Reduced waste and diminished costs
Shop All 3M Aerospace Sealants
Class B Polysulfide Sealant Tack Free and Cure Times*
Specification 3M Product Specific Gravity Class B‑1/4
(Tack Free/ Cure)
Class B‑1/2
(Tack Free/ Cure)
Class B‑1
(Tack Free/ Cure)
Class B‑2
(Tack Free/ Cure)
Class B‑4
(Tack Free/ Cure)
Class B‑6
(Tack Free/ Cure)
Fuel Tank and Fuselage
AC-350 1.4   (2‑3h/ 2‑3h)   (7‑8h/ 7‑8h) (32‑36h/ 32‑36h)  
High Temp Fuel Tank and Fuselage
AC-350 1.4 (1‑2h/ 1‑2h) (2‑3h/ 2‑3h)   (7‑8h/ 7‑8h) (32‑36h/ 32‑36h) (48h/ 48h)
Light Weight Fuel Tank and Fuselage
(Type 1)
1.3   (6‑7h/ 6‑7h)   (7‑8h/ 8‑10h)    
(Type 2)
1.1   (5h/ 5h)   (8‑10h/ 8‑10h)    
Non-Chromated Corrosion Inhibitive
AC-730 1.5   (4h/ 6h)   (16h/ 24h)    
Non-Chromated Corrosion Inhibitive
AC-735 1.1   (5h/ 5h)   (10‑12h/ 10‑12h)    
3M Standard
Window & Canopy
1.6   (4h/ 4h) (5h/ 7h) (8h/ 9h)    
*Measured at Standard Conditions (77°F / 25°C and 50% Relative humidity).
These products were manufactured under a 3M Quality Management System registered to the AS9100 standard.