Repair Rusted & Leaking HVAC Drain Pans Without Replacement

Corroded, leaking, or deteriorating HVAC drain pans can lead to costly water damage, equipment downtime, and unnecessary replacement expenses. PANSEAL provides a high-strength repair solution designed to seal leaks, encapsulate corrosion, and restore damaged drain pan surfaces. Its exceptional adhesion and moisture-resistant performance make it an effective alternative to replacing the entire drain pan.

Rather than simply covering a leak, PANSEAL forms a durable protective barrier that seals damaged areas, encapsulates existing rust, and helps prevent further deterioration. Its self-leveling properties provide consistent coverage across drain pan surfaces.

1. Inspect the Drain Pan

Identify corrosion, cracks, pinholes, and deteriorated areas. Determine whether the pan is structurally sound enough for repair.

2. Prepare the Surface

Remove loose rust, debris, oil, and contaminants. Prepare the substrate according to PANSEAL’s application instructions to promote proper adhesion.

3. Apply PANSEAL

Mix the two epoxy components according to the product instructions. Apply PANSEAL to the prepared drain pan, paying particular attention to damaged areas, seams, and potential leak points.

4. Allow the Epoxy to Cure

Follow the specified curing requirements before returning the system to service.

5. Inspect the Completed Repair

Check coating coverage, repaired areas, and drainage before restoring normal HVAC operation.

Choose the Right PANSEAL for Your Drain Pan Repair

From small pinhole leaks to extensive corrosion damage, PANSEAL offers professional-grade epoxy repair solutions for HVAC condensate drain pans. Choose a convenient cartridge or container for smaller repairs, or a gallon kit for larger restoration projects. Each option delivers durable protection designed to extend equipment service life and reduce costly replacements.

Frequently Asked Questions About HVAC Drain Pan Repair

Can PANSEAL repair an HVAC drain pan without removing it?

Yes. PANSEAL is designed to seal leaks and restore deteriorated HVAC drain pans without requiring complete replacement. Its two-part epoxy formulation cures through a chemical reaction rather than air drying, allowing repairs in wet conditions, including standing water.

Can PANSEAL be applied to a wet or leaking drain pan?

Yes. PANSEAL can cure in wet or submerged conditions, making it suitable for drain pans where moisture is difficult to eliminate. Unlike air-drying sealants, PANSEAL hardens through a chemical reaction between its resin and hardener.

How much area will PANSEAL cover?

PANSEAL is available in four packaging options:

• Cartridge (2000PC): 6 sq. ft. at 15 mils
• Container (2000CTR): 8 sq. ft. at 15 mils
• Gallon (2000PG): 120 sq. ft. at 15 mils
• Burst Pack (2000PB): 6 sq. ft. at 15 mils

Actual coverage depends on surface conditions, application technique, and coating thickness.

Can PANSEAL bond to rusted metal?

PANSEAL is designed to encapsulate existing corrosion and provide a durable protective barrier. Loose rust, contaminants, and unsound material should be removed according to the applicable surface preparation instructions before application.

What surfaces will PANSEAL adhere to?

PANSEAL bonds to a variety of substrates, including metal, concrete, fiberglass, plastics, wood, porcelain, ceramic, and rubber. Surface preparation and compatibility should be evaluated for each application.

How strong is PANSEAL’s adhesion?

PANSEAL has a reported minimum pull-off adhesion strength of 2,750 PSI when tested according to ASTM D4541. Actual performance depends on substrate condition and preparation.

How long do I have to apply PANSEAL after mixing?

Working time varies with temperature. The existing PANSEAL FAQ provides these approximate values:

• 40°F: 9 hours
• 75°F: 35 minutes
• 92°F: 20 minutes

Always follow the current product instructions for mixing and application.

Can PANSEAL be applied to vertical surfaces?

PANSEAL is self-leveling and is primarily suited to horizontal surfaces such as drain pans. For vertical repairs, a compatible trowelable epoxy repair compound may be more appropriate.

Can mixed PANSEAL be stored for later use?

No. Once the resin and hardener are combined, PANSEAL begins its chemical curing process and will harden even in a sealed container.

Why repair a drain pan instead of replacing it?

Repairing a suitable existing drain pan can reduce equipment downtime, labor costs, and replacement expenses. PANSEAL provides a protective epoxy barrier that seals leaks and helps extend the service life of deteriorated drain pans.

It’s so quick and easy, you won’t miss the game