Why Are Red Soft Poly Rollers Used On Fiberglass Boat Hulls?

Red poly rollers are used for fiberglass boat hulls because they are soft enough to not cause damage to the gelcoat surface, but firm enough to provide adequate pressure to work out any air bubbles or wrinkles in the resin during the application process. Additionally, poly rollers are resistant to solvents in the resin, making them durable and long-lasting for use in the marine environment.

Soft polyurethane rollers are used for fiberglass boat hulls because they are flexible and won’t mark or scratch the surface of the fiberglass, which can be delicate and easily damaged. The soft, flexible material of the roller allows for even pressure distribution during the application of gel coat or paint, which helps to create a smooth, uniform finish. Additionally, the poly material is resistant to solvents, making it a good choice for use in a marine environment.

For those who are interested in reading about the science behind polyurethane, you can view this article.

When using high quality plastic, you can ensure a quick, safe and efficient launch and retrieval of your boat down at the boat ramp.

Using polyurethane with aluminium boat hulls?

Is this a good idea? As a standard rule, the quick answer is NO.

Aluminium has a tendency to want to wear down polyurethan rollers quickly. They can slice through the rollers faster which will cause faster wear and tear and eventually you will need to replace your boat trailer rollers faster.

If you have an aluminium boat, we will go into details in another article on which rollers are more ideal for your boat type. For now, the quick answer is stick to the standard blue or black harder HDPE polyethylene or Ultralene Plastics. HDPE Plastic is hard wearing and will last much longer. Avoid imported plastic at all costs. Stick to Australian made plastic for longer and better use!

Red soft poly boat trailer rollers are manufactured in all standard boat roller profiles.

• Dog Bone / Sydney Roller: 4″ 6″ 8″ and 12″ Boat rollers.
• Cotton Reel / Keel Roller: 4″ 4.5″ 6″ 8″ and 12″ Boat rollers.
• Concave Boat Roller: 6″ 8″ and 12″ Boat rollers.
• Parallel Keel Roller: 6″ 8″ and 12″ Boat rollers.
• Vee Roller: 6″ 8″ and 12″ Boat rollers.
• Self Centering Rollers: 6″ and 8″ Boat roller.
• Wobble Rollers: Plain and ribbed profiles.
• Vee Blocks & Bow rollers.

View our range of red soft polyurethane boat trailer rollers.