HH-66 Vinyl Cement – Using Underwater

HH-66 Vinyl Cement – Using Underwater


This video is brought to you by Sailrite.
In this video we will demonstrate using HH-66 Vinyl Cement underwater. We’re going to
use some clear vinyl from Sailrite this is a 20 gauge Plastipane, but other vinyl products
could be used also as long as they do not have a protective coating applied to the surface.
It is important to cut the vinyl patch out so that it is a round or oval shape. This
shape results in the best adhesion for the edges of the patch.
The round can sizes of HH-66 have a brush applicator built into the top. Here you can
see we are applying the HH-66 Vinyl Cement to the clear vinyl window material. Be sure
to coat the surface thoroughly and insure that the extreme edges are covered well in
the cement. Since we are applying this patch underwater
we will fold the patch in half forming a taco. This should not be done if applying on a normal
out of water application. Immediately submerge the patch in the water and position it above
your application vinyl repair location. Then unfold the patch and apply over the vinyl
to be repaired. This repair vinyl should be free of dirt and algae for best adhesion.
Work out as many air bubbles as possible assuring that the patch is pressed firmly against the
repair vinyl. As always for the strongest bond it is best
to wait 24 hours before testing the bond. We will not remove this vinyl from water,
it will stay submerged at all times until the following day for inspection.
One day has passed and we are ready to check the strength of the HH-66 Vinyl Cement. Angela
will try to find an edge where she can pull the patch off the vinyl repair. Here is our
weakest edge, but she cannot remove the patch easily.
Let’s get Jeff to try he is slightly stronger. Jeff will try to remove the patch will a pair
of pliers. As you can see the bond is excellent even when applied underwater. If you look
closely the vinyl coating of the Shelter-Rite brand vinyl material is being ripped off the
substrate Polyester in some locations. That means the HH-66 Vinyl Cement bond is so strong
that it is ripping apart the fabric rather than the bond failing.
Use HH-66 to successfully repair vinyl pool liners and mush more. HH-66 Vinyl Cement is
available in various can sizes at Sailrite.com.

10 thoughts on “HH-66 Vinyl Cement – Using Underwater

  1. Excellent to hear, I use it at work for semi trailer tarps, never realized it would work under water for the pools too.

  2. I wish someone would do a video of trying to patch an under water hole
    at the bottom of the wall in a 4 ft. deep above ground. I have never found a way to keep myself
    down without holding on to the top rim of the pool and then with one
    hand, I can't open the patch that is folded over. How on earth do you
    do that?

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