True-Hull-Seal

• Remove the existing through-hull.
• Sand.
• Thoroughly clean the surface to be glued using products such as acetone or MEK.
• Connect the valve and the inner pipe properly while leaving the tightening nut of the through-hull unscrewed.
• Cover the outer part of the through-hull with masking tape to facilitate cleaning when installation is complete. (Optional).
• Apply True-Hull Seal evenly to the exterior through-hull.
• Tighten the nut, taking care to hold the through-hull from the outside, to prevent it from turning.
• Remove the sealant residue from around the through-hull.
• Finish cleaning around the through-hull using undiluted dish soap.
• Let dry for 48 hours before returning to the water.

• Spray penetrating oil (eg WD40) to make it easier to unscrew the nuts.
• Install the equipment required to lift the boat (stand, ber or travel-lift).
• Partially unscrew the bolts. It is best to use an impact gun.
• Remove the front bolt and the rear keel bolt.
• Replace these bolts (front and rear) with a threaded rod approximately 2 to 3 feet long. This will keep the keel upright and properly aligned.
• Remove all other bolts.
• Raise the boat very slightly.
• Cut the sealant from the keel joint. A thin steel cable could be used.
• Raise the boat. Ideally, about 6 inches high, to facilitate the cleaning of sealant residue.
• Thoroughly scrape the keel and the hull.
• Thoroughly clean the keel and hull surfaces with acetone.
• Wait 30 minutes to make sure the acetone has evaporated.
• At this stage, we recommend lowering the boat to a distance of about 1 to 2 inches, so as to allow the installation of new keel bolts.
• Install the bolts.
• Use masking tape on each side of the keel joint. This will make cleaning easier.
• Apply the sealant liberally and evenly over the entire surface of the keel joint.
• It is important to immediately lower the boat on its keel.
• Tighten the keel bolts securely.
• Remove excess sealant with a scraper or a spoon coated with undiluted dish soap. Dish soap prevents sealant from sticking to the tool.
• With the back of the spoon coated with undiluted dish soap, smooth the keel seal.
• Remove the masking tapes.
• If necessary, finish cleaning with undiluted dish soap.
• Let dry for 48 hours before returning the boat to the water.

By following the instructions carefully and knowing that the keel joint works a lot under various tensions related to navigation, everything is relative to the stress suffered. The more rigid the shell, the more optimal, or even definitive, the hold will be.

The density of True-Hull Seal remains constant with changes in temperature, regardless of the climate in which you are performing the repair. The product stays in place during application.

The product can be stored for two years. Once opened, it will keep for a minimum of one year. Always check before discarding the product, as it may still have a ready-to-use texture.

Store in a cool, dry place between 6^oC and 30^oC.

Two reasons underline the importance of a watertight keel seal and justify redoing it:

●  Eliminate water ingress.
●  Perform maintenance.

Following the recommendation of a marine inspector and sometimes, at the request of the insurer, it is necessary and essential that the nuts be changed and the keel seal must therefore be redone.

Yes. Otherwise, water will seep in and damage the nuts.

No. Not at all.

Depending on the size of the boat, the travel-lift becomes necessary. The procedure requires lifting the boat. It is possible to perform the repair on a ber or on stand, provided it can be lifted.

The choice of product will influence the quality and durability of your keel joint repair. Of course, following the instructions helps ensure optimal and lasting repair.
Finally, the tightness of a keel joint is also related to the adjustment of the correct tension on the nuts.

The True-Hull Seal is the solution to remaking your keel seal, whether it is a steel, aluminum or fiberglass hull.

Interprotect is not useful. Anti-fouling is preferable and normally applied to facilitate maintenance of the boat.

Be sure to distinguish between repairing the hull and repairing the keel seal.
The epoxy has a rigidity that allows repair to the hull or keel. The sealant plays a waterproof and flexible role preventing water infiltration through the joint.

Yes. The tube can be brought into your banding, transported in the aircraft hold. This of course, subject to the decision of the security guard who checks your baggage.