How many tubes of adhesive for 20' and a 40' HC containers doing all surfaces?

Insulating all interior surfaces of a high-cube shipping container with InSoFast panels requires approximately 24 to 28 large 28-ounce adhesive tubes for a 20-foot unit and 48 to 56 large tubes for a 40-foot unit.

Shipping container conversions face extreme thermal cycling and condensation risks along corrugated steel profiles, making mechanical screw penetrations vulnerable to rust and thermal bridging. Bonding EPS (expanded polystyrene) continuous insulation directly to steel eliminates penetrations, but running short on adhesive mid-install halts assembly because polyurethane adhesives require uninterrupted wet contact. Industry field data from 2024 indicates adhesive estimating errors cause up to 15% in avoidable installation downtime.

If you only do one thing: Size your adhesive order using 28-ounce (828 ml) cartridges of moisture-curing polyurethane construction adhesive calculated at one tube per 24 to 30 square feet of container surface.

• 20-Foot High Cube Tube Count: Insulating side walls, ceiling, end wall, cargo doors, and floor (approximately 750 to 850 sq ft of total surface) requires 24 to 28 large 28-ounce cartridges, or 60 to 70 standard 10-ounce tubes.
• 40-Foot High Cube Tube Count: Insulating all interior surfaces (approximately 1,450 to 1,600 sq ft) requires 48 to 56 large 28-ounce cartridges, or 120 to 140 standard 10-ounce tubes.
• Adhesive Bead Specification: Run continuous 3/8-inch (9.5 mm) thick beads along the back ribbed contact points of each embedded stud and on container corrugation inserts to bridge metal profile variations.
• Approved Adhesive Chemistry: Use moisture-curing polyurethane adhesives such as Loctite PL Premium MAX or equivalent formulations rated to bond EPS foam directly to painted, primed, or bare corten steel.
• Panel Yield Rate: One 28-ounce tube secures 3 to 4 InSoFast panels (24 to 32 sq ft of surface coverage) along with their corresponding container insert fills.

• Watch out for: Solvent-based adhesives, which melt EPS foam cores on contact and compromise structural adhesion.
• Watch out for: Ambient steel temperatures below 40°F (4°C) or over 90°F (32°C), which stall the moisture-cure reaction or cause premature skinning.
• Watch out for: Unprepped metal surfaces; oils, dust, flaking paint, and condensation on container corrugations will cause bond line failure.

Calculate your exact square footage across all six surfaces, order adhesive by the full case with a 10% overrun margin, and verify steel cleanliness before laying the first course. For container panel quotes or technical assistance, call InSoFast toll-free at (888) 501-7899.