Emergency Repair


A putty epoxy for wet or underwater applications

PC-Marine™ Epoxy Putty Stick is a specially formulated epoxy putty suitable for wet or underwater applications. Incredibly it has an extended open time (20 – 30 minutes) but cures hard within 60 minutes for a fast return to service and emergency repairs. It sticks great to metals, fiberglass, tile, wood and some plastics such as ABS and rigid PVC.


Properties & Uses

Product properties:
  • formulated to adhere to wet, dry, and submerged underwater surfaces
  • hand-mouldable
  • quick-setting
  • no drip or sag, even on overhead work
  • waterproof
  • sandable and paintable
Use on:

Holes in fibreglass, PVC, metal, boats, spas, swimming pools and more.

Example projects:
  • Fill cracks and dings in fibreglass.
  • Seal leaks in water tanks.


PC-Marine™ can be purchased online by following the ‘click to buy’ link or you can order direct by calling us on 020 8866 2462.

PC-MARINE™ | 2 oz.
Click to buy



2 oz: 2.5 cubic inches

Prep & Cleanup

How to prepare a surface for bonding with PC-Marine™

Remove contaminants such as dust, dirt, oil and grime with a solvent such as denatured alcohol, acetone, rubbing alcohol (isopropyl alcohol) or lacquer thinner. Mild detergent solution in water is also good removing contaminants.

Use a clean paper towel or rag for wiping. Remove rust and loose paint with sandpaper or wire brush. Epoxy typically sticks to most paints. If there is a concern of the paint’s adhesion then remove it with sandpaper, wire brush or paint stripper.

Smooth, glossy and shiny surfaces should be roughened using sandpaper to increase adhesion.

How to clean-up after PC-Marine™ application

We recommend wearing disposable gloves with skin. Use denatured alcohol, acetone, rubbing alcohol (isopropyl alcohol) or lacquer thinner to cleanup before PC-Marine cures.

Clean hands and skin with soap and water.

Cured epoxy can be removed by applying paint remover or paint stripper to soften the epoxy surface. Scratch off the softened epoxy. Repeat as needed.


Can PC-Marine™ be applied underwater?

Yes, application underwater is possible. PC-Marine™ will adhere and cure underwater. However, it is preferable to apply it in dry conditions.

Is PC-Marine™ suitable for repairing canoes?

PC-Marine™ is excellent for repairs to aluminum and fiberglass canoes but not when they are made with Hypalon.

How much time does it take for PC-Marine™ to cure?

PC-Marine™ has an extended application or open time of 20 minutes. Most repairs made with PC-Marine™ can be returned to service after 60 minutes. Some applications may require full 24 hour cure.

Is PC-Marine™ green?

PC-Marine™ Epoxy Putty stick is white on the inside and green on the outside. The green color disappears when mixed with the white. The result is an off-white color when it cures.

What is the maximum thickness that PC-Marine™ Epoxy Putty can be applied?

PC-Marine™ can be applied thick or thin. There isn’t a thickness limit. It cures from the within via a chemical reaction. It does not need to dry or be exposed to air.

How much PC-Marine™ can be mixed at a single time?

PC-Marine™ is slower curing than other epoxy putties allowing larger portions to be mixed at one time. Small quantities can be mixed more thoroughly and with less effort.

Can PC-Marine™ cure in a freezer?

PC-Marine™ is not recommended for sub-freezing temperatures. We recommend application temperature of 35 °F or higher.

Does PC-Marine shrink?

PC-Marine™ does not shrink.


PC-Marine™ does not match the whiteness of the shower basin. It looks more gray than white.

PC-Marine™ does not cure to pure white color, it is considered off-white. It is possible to touch up cured PC-Marine™ with stain sealing primer and paint.

The epoxy set up very quickly.

The open time or application time is reduced at elevated temperatures. Expect the open time to be reduced by 5 to 10 minutes at 100°F (38°C).