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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.

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Here are just a few specific uses (there are hundreds of other uses):

  • Seal holes and waterproof fittings
  • Shape and form missing corners or holes in ceramic or fiberglass fixtures
  • Re-attach and secure loose hardware
  • Fill cracks and dings in fiberglass
  • Seal leaks in water tanks


PC-Marine™ | 2 oz.


PC-Marine™ | 4 oz.

PC-Marine Kayak Repair - After

Kayak Repair (PC-Marine™)

May 11, 2017

2 oz.: 2.5 cubic inches
4 oz.: 5 cubic inches

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

Remove contaminants such as dust, dirt, oil and grime with a solvents 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. Do not use mineral spirits or paint thinner for removing contaminants.

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 or wire brush.

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

How to clean-up after PC-Marine™ application

Wear disposable gloves to minimize contact 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.

PC-Marine™  SDS Sheet


PC-Marine™  Front Data Sheet


PC-Marine™  Back Data Sheet


PC-Marine™ Canada SDS (English)


PC-Marine™ Canada Fiche signalétique (en français)


PC-Marine™ Hoja de Datos de Seguridad (en Espanol)


PC-Marine™ VOC

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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).