303 Rubber Seal Protectant – 3.4oz

A dried-out rubber seal stops sealing, and that’s how water ends up inside a trunk. 303 Rubber Seal Protectant keeps seals conditioned and flexible so they keep doing their job through hot summers and cold winters.

303 made it for the seals on doors, windows, hoods and trunks. On a bike, the tour pack and hard saddlebag lids close on rubber seals that see the same sun, heat and cold.

• Conditions rubber seals and keeps them pliable.
• Protects against drying and cracking in extreme temperatures.
• Brings color and elasticity back to old seals.
• 3.4 oz. Made in the USA.

Good time to do it: right before storage, when a bike will sit through the cold, and again in spring. Wipe the seal clean, apply, and wipe off any extra so it doesn’t transfer to paint.

The small size is easy to keep in the garage drawer with your other detailing gear.

The rest of the before-storage list is in our motorcycle storage guide.

Common Questions

How do I keep rubber seals from cracking?
Wipe on 303 Rubber Seal Protectant. 303 says it conditions seals, protects them from drying and cracking in extreme temperatures, and brings back color and elasticity on old seals.

Can I use 303 Rubber Seal Protectant on saddlebag or tour pack lid seals?
303 makes it for rubber seals on doors, windows, hoods and trunks. The rubber seal on a hard saddlebag or tour pack lid is the same job.

How big is the 303 Rubber Seal Protectant?
3.4 oz. It’s a small bottle meant for door, window, hood and trunk seals, not big surfaces. A little goes onto each seal.

WARNING: This product can expose you to chemicals including Ethylbenzene which is known to the State of California to cause cancer, and Ethylene Glycol which is known to the State of California to cause birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.