Talk Morgan Forums Morgan Sports Cars Classic Morgans (pre-CX) Rear Window Hard Top

That looks like a liquid rubber mastic to me, you are just removing the the set rubber forming the adhesion and water seal.

There is a black silicone sealant which is designed for cast iron gutters. It holds its colour and flexibility and has lasted me over 25 years in use. Readily available in tubes you apply it using a simple frame gun.... £5 Screwfix!

Time to stop thinking everything is technical and special on a Morgan, it generally isn't! Either way I'd suggest you get on and fix it. Clean up the roof and glass. It'll be toughened glass I imagine so take care on the edge corners when scraping. These are the vulnerable areas and a chip there will cause the glass to shatter into thousands of small pieces. don't stand the glass on concrete or sharp/hard surfaces on edge either. Buy yourself a set of silicone edge tools, again dirt cheap from screw fix or the bay.

1. When all cleaned up, tape of the glass (outside face) leaving an overlap area. make this even for aesthetic purposes.

2. Tape off the roof with the tape edge just going into the start of the curve for the glass recess. apply silicone in a continuous bead around the roof channel estimate the bead size to just push it over the edge of the interior roof cut out, this will help clean up later!

3. With two people or on your own if you have glass suction handles, lower the glass into the roof aperture and gently push the glass into place. You are not trying to push it in as far as it will go, rather keep an eye on the silicone and stop as it reaches the internal edge of the roof seen through the glass.

4. You may have to apply a further bead of the sealant to the gap between screen and roof on the outside. try and keep it clean and don't add to much. You will tool this off between the two tape edges, tight to the tape!

5. Give it ten minutes to pick up a bit then carefully remove the tape from the external glass surface and then the roof channel edge.

6. From the inside use a silicone edge tool to tidy the internal join up. When tooling don't try and cover long distances, Short and lift off, clean tool and go again!




Notes:

There is also a silicone which is similar and used for marine applications and again works well.... I have no preference for either product.

On ebay you can buy suction cup handles for the elderly or disabled, bathroom use. Cheap as toast and these will do the job nicely as the screen is fairly light. A lot lighter than an old bloke swinging on it anyway!

Take your time..... it's not 5 minute epoxy and won't go of under your tools.

If you have a light spot fill it straight away. if you try and do it after the initial application has set it will not stick to it!

The silicone tools clean easily with kitchen towel so keep them clean as you go.

If you cock an area up.... clean it straight away and continue on. When happy walk away and leave it for several hours/over night!


Now you have your roof back!