Big mistake

Another vote for Eternabond...clean the area, unroll the tape, apply it and never worry about it again...much faster and guaranteed to fix any leak, if there is one.

Eternabond it and be done, forever.

Yes, it is named "Liquid rubber Roof". It runs about $50. per quart and can be put on with a simple paint brush. You may be able to pick it up at a local RV supply, or dealership.

Simple to put on:

1. tape the area off about 4" outside the affected area.

2. mix the catalyst into the LRR EPDM material. It has to sit about ten minutes before applying.

3. Clean the area to be applied with denatured alcohol.

4. When cleaned area is dry, apply the EPDM liberally.

5. IMPORTANT, remove the masking tape before the EPDM cures!

6. Any left over product can be stored for a while in a freezer, especially if you feel a second coat is needed. It can be applied after 24 hours.

While you are at it, clean, tape off, and seal all lap joint protected
penetrations of the rubber roof, such as around sky lights and vent tubes. Also where the front cap and, or rear caps meet the roof. I've used it on two trailers and had excellent results.

Bandaid

I put an inch long tear I our roof and used enternabond tape to cover it. It was still on 7 years later when we changed trailers. Make sure the surface is clean and use a hard roller to help fuse the tape to the roof.

EternaBond tape should do the job.

Eternabond
If there is a small leak/pin hole, the Eternabond will take care of the problem.
Clean the area well before applying.

There was a post a few days ago, on Ebay you can buy Eternabond by the foot. Just buy what you need to make your repair.

If you are not familiar with the product, do a forum search. There are lots of posts on the subject.

Eternabond is a great product.