Rot Doctor

[Back to Boat Q&A]

[Back to Customer Project]

Subject: 72 Sea Sprint Arthroscopic Transomectomy (Transom Repair)
Date: Fri, 6 Oct 2000

Note: since this letter, Michael has successfully repaired his transom. He has documented the repair, and has allowed us to put his documentation on our website. You can see what he has to say here.

Hi, couple of questions and a web site. I ordered some supplies from you last week - need an opinion as to whether they were enough.

We have copied the information from Michaels webpage to our own - the finished project.

Pictures and my plan are here: -Arthroscopic Transomectomy: Transom Repair on a 1972 Sea Sprite-

This is a 16ft Sea Sprite runabout with a 125 hp evinrude outboard.

I ordered two quarts of CPES and two quarts of L&L epoxy. Do you think that was enough?

I’m considering getting a 1/4 inch aluminum plate(s) made for inside and out - is this overkill?


Thanks for the good graphics. Your plan is clever, and thorough.

I think you’re okay on product quantities. One can’t always predict how much CPES the wood will absorb, but you’ve tapped this thing out so well that I think you’re going to be okay.

Same with the L&L Resin. Here it will depend to some extent on your tolerances, but I think you’re okay. Remember that the L&L Resin is VERY strong and if you made 75% contact between the old and the new you’d be just fine. You can also add coarse sawdust to the mixed L&L Resin to stretch it out and expand it as a bedding compound. You keep it flowable, but the sawdust adds volume. The result is also VERY strong. We use this technique frequently as a means of saving resin.

The L&L Resin is not classified as a hazardous material by Air so if for any reason you should run short we can ship by UPS Air or Ground whatever you select.

I don’t think there’s any such thing as overkill when it comes to making boats strong, although I think one on the inside would be quite sufficient. This is also something we have done when the owner will agree to the (relatively) small additional expense.

When you’re finished your transom will be far stronger than it was when new.

Come on back if you have additional questions or comments. And thanks again for the pictures.


[Back to Boat Q&A]

[Back to Customer Project]