PVC Zodiac Inflatable dinghy Restoration.
The process taken to Refit the Transom back on to the PVC tubes.


1. Zodiac Transom and transom fittings which were removed by hot air gun.


2. Transom prior to clean-up. The single part Hypalon Adhesive is used later to prime the wood of the transom prior to final fixing with PVC two part adhesive.


3. Removing old glue from Zodiac inflatable with power tool.


4. Removing rowlocks (which were also coming un-stuck) with hot air gun.


5. Rowlock removed.


6. Rowlock after cleaning. This is first primed with Hypalon single part adhesive because the fitting is made of rubber.
NOTES:
A/. PVC Adhesive does not stick to Rubber
B/. PVC Adhesive will stick to Hypalon Adhesive

Zodiac Transom
7. Removing old adhesive from base of transom.


8. The Polymarine Single part Hypalon adhesive and cut down brush ready for priming the cleaned up wood with hypalon adhesive so that the PVC adhesive will stick to it.
NOTES:
A/. PVC Adhesive does not stick to wood.
B/. Hypalon Adhesive will stick to wood.
C/. PVC Adhesive will stick to Hypalon Adhesive.

The sanded wood was primed with a thin layer of hypalon adhesive and allowed to dry. In this case, the wood had absorbed a lot of the hypalon adhesive, so a second thin coat was needed and allowed to dry for 1 x hour.


9.  After Hypalon Adhesive priming the application of Polymarine 2 part PVC Adhesive for final gluing.

The Primed wood had a thin layer of PVC adhesive applied and allowed to dry for 1 hour. The transom was then ready for gluing to the PVC fabric and components


10. Transom with side fitting attached using PVC 2 part Adhesive.


11. Zodiac Dinghy Floor prior to cleaning off old glue.

The PVC side fittings (not the transom) were first primed with 2903 Solvent and Primer For PVC Fabrics in preparation to receive the PVC adhesive. The solvent primer was rubbed onto the side fitting surface, and repeated a number of times until they felt sticky/slimey to touch. At this point the first layer of glue is applied to the side fittings.

When both PVC side fittings and the Transom surfaces had dried for an hour (or more ) a second thin coat of PVC adhesive was applied to the Transom and side fittings and after about 5 mins, whilst still tacky brought to together for bonding, applying as much pressure as possible to remove any air bubbles. Note, If the surface of glue had dried before sticking together, the glue could have been reactivated by wiping lightly with the 2903 solvent primer.


12. After final gluing to tubes transom strapped tight for 48 hours.


13. Gluing floor with 2 part PVC adhesive to base of the primed wood transom.

Similar to the previous process, the PVC fabric was first primed with ‘2903 Solvent and Primer For PVC Fabrics‘ until it felt sticky/slimey to touch. At this point the first layer of PVC glue is applied to the fabric.

When both PVC fabric and the Transom surfaces had dried for an hour (or more ) the second thin coat of PVC adhesive was applied to each surface.

The surfaces were brought together after about 5 mins whilst still tacky. Rubbing down and outwards with a smoother tool. Then checked that all the edges are stuck down and no air was trapped between the surfaces. Excess adhesive was rubbed off to create a clean finish.

Note: If the adhesive had flashed off and was not sticking correctly, then gently warming the area with a hair drier or a hot air gun and a push down with a smoother would be an effective remedy.

The Zodiac was left to dry overnight. (Note: it should be at least six hours before putting pressure the transom and floor) A Full cure was reached in 48 hours, and a Maximum Bond Strength by 7 days.

Further details on adhesive use, mixing and preparation can be found here.

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