Marine88 is a popular marine-grade adhesive sealant known for its durability and resistance to harsh sea environments. However marine88, like any product, it can occasionally present issues during or after application. Whether you’re a seasoned boat owner or a weekend DIYer, this guide will walk you through some of the most common problems users face with Marine88—and how to solve them.

1. Sealant Not Curing Properly

Issue:

After application, the sealant remains tacky or doesn’t fully harden even after the recommended curing time.

Possible Causes:

  • High humidity or cold temperatures during application.
  • Thick layers applied in a single pass.
  • Incompatible surfaces or surface contamination.

Solution:

  • Ensure temperatures are within the ideal range (usually 50°F–90°F).
  • Apply thinner layers and allow each to set slightly before adding more.
  • Clean surfaces thoroughly—remove any oils, dust, or old sealant residues.

2. Poor Adhesion

Issue:

The sealant peels off or detaches from the surface prematurely.

Possible Causes:

  • Inadequate surface prep.
  • Applying on damp or oily surfaces.
  • Using Marine88 on incompatible materials.

Solution:

  • Sand and degrease the surface before application.
  • Let surfaces dry completely.
  • Use a compatible primer if necessary.

3. Cracking or Shrinkage

Issue:

Visible cracks form in the sealant after curing, or it pulls away from edges.

Possible Causes:

  • Over-application or uneven spreading.
  • Excessive movement in the joint or flexing.
  • Using expired or improperly stored product.

Solution:

  • Follow recommended application thickness.
  • Use Marine88 in flexible joints designed for movement.
  • Store the product in a cool, dry place and check expiration dates.

4. Discoloration or Yellowing

Issue:

Sealant appears discolored or yellow after exposure to sun or saltwater.

Possible Causes:

  • Prolonged UV exposure.
  • Use of incompatible cleaning agents.
  • Naturally occurring over time (especially in white sealants).

Solution:

  • Apply a UV-resistant topcoat or paint over the sealant.
  • Use mild cleaners approved for marine use.
  • For cosmetic purposes, consider reapplication or touch-up.

5. Nozzle Blockage or Difficult Application

Issue:

Sealant won’t come out smoothly or the nozzle clogs frequently.

Possible Causes:

  • Improper storage (tube exposed to air).
  • Dried product in nozzle.
  • Using a low-quality caulking gun.

Solution:

  • Always cap the tube securely and store upright.
  • Clean or replace nozzles as needed.
  • Invest in a heavy-duty caulking gun for better control.

Final Thoughts

Marine88 is a reliable solution for marine sealing needs when used correctly. By understanding these common pitfalls and applying the right fixes, you’ll extend the life of your sealant and ensure your vessel stays seaworthy and protected. When in doubt, always consult the manufacturer’s recommendations or reach out to a marine supply professional.