Removing old Dicor on rubber roof

old guy wrote:
I just installed a fantastic fan and I used a plastic putty knife I bought at home depot. worked great, but you still have to be careful, the rubber roof is very fragile.

I found the exact opposite when I removed every spec of caulking on my rubber roof during my Eternabonding marathon. The membrane can be gouged without penetrating or cutting it as long as you aren't using something sharp. I found it to be very tough and resilient. I would however be careful since carelessness could damage it. Even so if you will be putting Eternabond over the area even a little damage is not a big deal IMO as long as it's not along the edge where the Eternabond will be applied.

Larry

I just installed a fantastic fan and I used a plastic putty knife I bought at home depot. worked great, but you still have to be careful, the rubber roof is very fragile.

I would take a different approach. Would remove as carefully as you can, but would cover the whole area with the proper size of aluminum and seal the edges with Eternabond.

Dicor doesn't get hard in any amount of sun.

However that doesn't help you remove the product whatever it is.

Sounds like a latex base caulking which was all we had years ago. Or it could be a asphalt base sealant. Either way its steel putty knife time. Just remember the rubber membrane. It can be cut/torn.

You know...it might not be Dicor. I've worked with Dicor on my previous RV and it was never this hard. This stuff looks like it was poured on and allowed to set--it never leveled much. And I can barely dent it with a putty knife. Any ideas?

Are you sure its Dicor. I've removed Dicor much older than 6 yrs, and it was always still pliable, came off a rubber roof w/o any problem

I use a putty knife, if your careful not to pierce the rubber its pretty brain dead simple.:h.

I used a dull putty knife to remove all the bad Dicor on both my present rig and the fiver. The surface of Dicor may be hard and cracked, but it'll usually be a little softer underneath. It peels off pretty easy but it takes a little patience.

When I applied the new Dicor, I covered it in aluminum duct tape (not the cloth type!) to create a new surface on the Dicor. So far in several years running, the Dicor has not hardened, nor cracked, nor collected dirt.

I know people that used the Fein Multi Tool for removing old caulk.
If you don't need the tool for any other purpose, try the Harbor Freight version of the tool.