Waterproofing

[mrmaggit]

We're going to try to waterproof the roof of our Griff tonight, I've got the tin of Thompson's Waterseal (as per the bible), and it does say on the tin "waterproofs natural fabric, canvas, tents, tarpaulins, shoes, backpacks, sleeping bags, groundsheets, etc.", but do you start at the top or bottom? I also assume that you keep it away from the rubber seals and the plastic window.

Ah! it says start at the bottom on the tin. There you go.

maggit

[aaandy]

Let us know how you got on. Am looking to do mine in the next week or so. Any tips that you can offer after doing it would be greatly appreciated.

Andy.

[mrmaggit]

And I was hoping you'd give me a few tips!

If I learn anything, I'll report back.

maggit

[simpo two]

Logically I would always start at the top, reason being that otherwise any drips will run over the area you've just done. Might not matter on brick walls, but could look awful on a TVR...

[mrmaggit]

Am I no.1 testing bunny, then?

maggit

[dougal]

When I do my roof I use Fabsil or the same manufacturers equivalent. I get some on a paint brush, start at the top and keep dipping the brush in the liquid then touch it onto the roof and it wicks out of the brush into the roof. I do this all over (especially around the stitching) and it sort of distributes itself, never had any leaks or streaks.

[shpub]

mrmaggit said:

Am I no.1 testing bunny, then? maggit

No but it is not exactly rocket science!

If you want some more top tips:

Don't drink the stuff.
It is no good as a fuel additive.
Goldfish do not need waterproofing so don't add it to the water.
It is not a good barbecue maranade.
Don't apply it to tyres as it does not reduce aquaplaning.

[beano500]

shpub said:

No but it is not exactly rocket science!

Clearly you have no idea about rocket science

Get two elements and shove them in a big box with a hole on one side!

Now clearly waterproofing a TVR requires more skill than that!!!!

[RAW-SEWedge]

Did mine earlier this year.
I took the roof panel out and layed it flat on the work bench. Used brush strokes front to back and had no problems.

The back section I started on one side and used brush strokes from top to bottom working my way round the back of the car.

Don't really think it matter which way you do it as it all drys the same and is very easy to do.

Once dry I hosed it down and the water just forms beads and runs off. XLNT Stuff !

[rude girl]

And use a natural bristle brush rather than those smooth synthetic ones; it holds the stuff better.

[IPAddis]

I would add that when you do the targa panel, start from one side and work your way all the way over to the other. Don't start from the middle and work your way out to the edge as I did otherwise you get a faint tide mark.

Ian A.

[RAW-SEWedge]

ps. Make sure the roof it clean first. I had a dirty mark on the edge of the roof where it had been rubbing against the body.

This made a bit of a stain when I caught it with the brush. Managed to wash it out before it dried thou'